Datasheet AC/DC Drivers PWM type DC/DC converter IC Included 650V MOSFET BM2PXX3F Series General The PWM type DC/DC converter (BM2PXX3F) for AC/DC provide an optimum system for all products that include an electrical outlet. BM2PXX3F supports both isolated and non-isolated devices, enabling simpler design of various types of low-power electrical converters. BM2PXX3F built in a HV starter circuit that tolerates 650V, it contributes to low-power consumption. With current detection resistors as external devices, a higher degree of design freedom is achieved. Since current mode control is utilized, current is restricted in each cycle and excellent performance is demonstrated in bandwidth and transient response. The switching frequency is 65 kHz. At light load, the switching frequency is reduced and high efficiency is achieved. A frequency hopping function is also on chip, which contributes to low EMI. We can design easily, because BM2PXX3F includes the switching MOSFET. Basic specifications Features PWM frequency : 65kHz PWM current mode method Burst operation when load is light Frequency reduction function Built-in 650V start circuit Built-in 650V switching MOSFET VCC pin under voltage protection VCC pin overvoltage protection SOURCE pin Open protection SOURCE pin Short protection SOURCE pin Leading-Edge-Blanking function Per-cycle over current protection circuit Soft start Secondary Over current protection circuit Applications AC adapters and household appliances (vacuum cleaners, humidifiers, air cleaners, air conditioners, IH cooking heaters, rice cookers, etc.) Operating Power Supply Voltage Range: VCC: 8.9V to 26.0V DRAIN: 650V Operating Current: Normal Mode: BM2P053F: 0.60mA (Typ.) BM2P093F: 0.50mA (Typ.) Burst Mode: 0.40mA (Typ.) Oscillation Frequency: 65kHz (Typ.) Operating Temperature: - 40 oC to +105 oC MOSFET ON Resistance: BM2P053F:4.0 (Typ.) BM2P093F:8.5 (Typ.) Package W (Typ.) x D (Typ.) x H (Max.) 5.00mm x 6.20mm x 1.71mm SOP8 Line Up Product MOSFET ON resistor BM2P053F 4.0 BM2P093F 8.5 Application circuit + AC FUSE Filter 85-265Vac Diode Bridge - 8 7 FB GND VCC N.C. 2 6 5 SOURCE N.C. DRAIN 3 4 ERROR AMP Figure 1Application circuit Product structureSilicon monolithic integrated circuit .www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211114001 This product is not designed protection against radioactive rays 1/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series Absolute Maximum RatingsTa=25C Parameter Symbol Rating Unit Vmax1 Vmax2 V max3 -0.330 -0.36.5 650 V V V Drain current pulse IDP 2.60 A Drain current pulse IDP 1.30 A Drain current pulse 2 Drain current pulse 2 Allowable dissipation Operating temperature range MAX junction temperature Storage temperature range IDP2 IDP2 Pd 4.00 2.00 563 A A mW Topr -40 +105 o C TJMAX 150 o C Tstr -55 +150 o C Maximum applied voltage 1 Maximum applied voltage 2 Maximum applied voltage 3 Conditions VCC SOURCE, FB DRAIN PW =10us, Duty cycle=1% (BM2P053F) PW =10us, Duty cycle=1% (BM2P093F) (BM2P053F) (Note2) (BM2P093F) (Note2) (Note1) SOP8 : When mounted (on 70 mm x 70 mm, 1.6 mm thick, glass epoxy on single-layer substrate). Reduce to 4.504 mW/C when Ta = 25C or above. (Note2) It shows drain current while the built-in switching MOSFET is turning on (within 0.3 us) . The condition is within 30 ms while VCCUVLO state is released . IDP2 Drain Current < 0.3us Turn ON Operating ConditionsTa=25C Parameter Symbol Rating Unit VCC VDRAIN 8.926.0 650 V V Power supply voltage range 1 Power supply voltage range 2 Conditions VCC pin voltage DRAIN pin voltage Electrical Characteristics of MOSFET part (Unless otherwise noted, Ta = 25C, VCC = 15 V) Min Specifications Typ Max V(BR)DDS 650 - IDSS - On resistance RDS(ON) On resistance RDS(ON) Parameter Symbol Unit Conditions - V ID=1mA / VGS=0V - 100 uA - 4.0 5.5 - 8.5 12.0 VDS=650V / VGS=0V ID=0.25A / VGS=10V (BM2P053F) ID=0.25A / VGS=10V (BM2P093F) [MOSFET Block] Between drain and source voltage Drain leak current www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 2/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series Electrical Characteristics of Control IC part (Unless otherwise noted, Ta = 25C, VCC = 15 V) Specifications Parameter Symbol Unit Conditions Min Typ Max [Circuit current] BM2P053F, FB=2.0V Circuit current (ON) 1 ION1 410 600 790 A (at pulse operation) BM2P093F, FB=2.0V Circuit current (ON) 1 ION1 350 500 650 A (at pulse operation) ION2 - 400 500 A FB=0.0V(at burst operation) VUVLO1 VUVLO2 VUVLO3 VOVP1 VLATCH VCHG1 VCHG2 TLATCH TSD 12.50 7.50 26.0 7.70 12.00 50 118 13.50 8.20 5.30 27.5 VUVLO2-0.5 8.70 13.00 100 145 14.50 8.90 29.0 9.70 14.00 150 - V V V V V V V us C VCC rise VCC drop VUVLO3= VUVLO1- VUVLO2 VCC rises FSW1 FSW2 FDEL1 FCH TSS1 TSS2 TSS3 TSS4 Dmax RFB Gain VBST 60 20 75 0.30 0.60 1.20 4.80 68.0 23 0.300 65 25 4.0 125 0.50 1.00 2.00 8.00 75.0 30 4.00 0.400 70 30 175 0.70 1.40 2.80 11.20 82.0 37 0.500 KHz KHz KHz Hz ms ms ms ms % k V/V V VDLT 1.100 1.250 1.400 V VFOLP1A VFOLP1B TFOLP1 TFOLP1b TFOLP2 2.60 40 26 358 2.80 2.60 64 32 512 3.00 88 38 666 V V ms ms ms VCS 0.380 0.400 0.420 V Overcurrent detection voltage SS1 VCS_SS1 - 0.100 - V 0[ms] ~ TSS1[ms] Overcurrent detection voltage SS2 VCS_SS2 - 0.150 - V TSS1 [ms] ~ TSS2 [ms] Overcurrent detection voltage SS3 VCS_SS3 - 0.200 - V TSS2 [ms] ~ TSS3[ms] Overcurrent detection voltage SS4 VCS_SS4 - 0.300 - V TSS3 [ms] ~ TSS4 [ms] Leading Edge Blanking Time Over current detection AC Voltage compensation factor SOURCE pin short protection voltage [Start circuit block] Start current 1 Start current 2 TLEB - 250 - ns KCS 12 20 28 mV/us VCSSHT 0.020 0.050 0.080 V ISTART1 ISTART2 0.100 1.000 0.500 3.000 1.000 6.000 mA mA OFF current ISTART3 - 10 20 uA VSC 0.800 1.500 2.100 V Circuit current (ON) 2 [VCC protection function] VCC UVLO voltage 1 VCC UVLO voltage 2 VCC UVLO hysteresis VCC OVP voltage 1 Latch released VCC voltage VCC Recharge start voltage VCC Recharge stop voltage Latch mask time Thermal shut down temperature [PWM type DCDC driver block] Oscillation frequency 1 Oscillation frequency 2 Frequency hopping width 1 Hopping fluctuation frequency Soft start time 1 Soft start time 2 Soft start time 3 Soft start time 4 Maximum duty FB pin pull-up resistance FB / CS gain FB burst voltage FB voltage of starting Frequency reduction mode FB OLP voltage 1a FB OLP voltage 1b FB OLP ON timer FB OLP Start up timer FB OLP OFF timer [Over current detection block] Overcurrent detection voltage Start current switching voltage www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 3/19 Control IC FB=2.00V FB=0.40V FB=2.0V FB falls Overload is detected (FB rise) Overload is detected (FB drop) Ton=0us VCC= 0V VCC=10V Inflow current from Drain pin after UVLO released UVLO. When MOSFET is OFF TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series PIN DESCRIPTIONS Table 1 Pin Description NO. Pin Name I/O Function 1 2 3 4 5 6 7 8 VCC N.C. N.C. DRAIN SOURCE N.C. GND FB I I/O I/O I/O I Power supply input pin ESD Diode VCC MOSFET DRAIN pin MOSFET SOURCE pin GND pin Feedback signal input pin I/O Equivalent Circuit Diagram 8 FB 7 6 GND N.C. 5 VREF VREF R FB FB 1 SOURCE VCC GND 2 Internal MOSFET SOURCE N.C. 3 N.C DRAIN 4 DRAIN VCC Internal Circuit Internal MOSFET SOURCE Figure 2. I/O Equivalent Circuit Diagram www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 4/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series Block Diagram + VH FUSE AC Diode Bridge Filter VO CM Vs - Cvcc VCC VCC DRAIN DRAIN 1 4 VCC UVLO VCC OVP + - 13.5V / 8.2V 100us Filter + - Starter 4.0V Line Reg 12V Clamp Circuit 27.5V 10uA Internal Block S R Q DRIVER PWM Control 4.0V 4.0V 30k FB 8 OLP + 1M 64ms Timer Current Limiter Burst Comparator Leading Edge Blanking (typ=250ns) + - 5 SOURCE + RS Rs Soft Start PWM Comparator - AC Input Compensation MAX DUTY + + OSC (65kHz) 7 Frequency Hopping GND Slope Compensation FeedBack With Isolation Figure 3. Block Diagram www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 5/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series Description of Blocks (1) Start circuit (DRIAN: 4pin) This IC built in Start circuit (tolerates 650V). It enables to be low standby mode electricity and high speed starting. After starting, consumption power is idling current ISTART3typ=10uA only. Reference values of Starting time are shown in Figure-7. When Cvcc=10uF it can start less than 0.1 sec. + FUSE Diode Bridge AC 85-265Vac - DRAIN Starter SW1 VCC Cvcc + VCCUVLO Figure4. Block diagram of start circuit 1.0 0.9 0.8 Start Up Current [mA] ISTART2 [sec] 0.7 0.6 0.5 0.4 0.3 0.2 0.1 ISTART1 ISTART3 0.0 0 Vsc 10V 0 V UVLO1 5 10 15 20 25 30 35 40 45 50 Cvcc [uF] VCC Voltage[V] Figure 5. Start current vs VCC voltage Figure 6. Start time (reference value) * Start current flows from the DRAIN pin ex) Consumption power of start circuit only when the Vac=100V PVH100V*2*10uA=1.41mW ex) Consumption power of start circuit only when the Vac=240V PVH240V*2*10uA=3.38mW www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 6/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series (2) Start sequences (Soft start operation, light load operation, and auto recovery operation during overload protection) Start sequences are shown in Figure 7. See the sections below for detailed descriptions. VH VCC=13.5V VCC(1pin) VCC=8.2V Internal REF Pull Up Within 32ms FB OLP ON 64ms FB(8pin) Vout Over Load Normal Load Light LOAD Iout Burst mode Switching stop Switching Switing Soft Start A BC E D F GH I Figure 7. Start sequences Timing Chart A: B: C: D: E: F: G: H: I: Input voltage VH is applied This IC starts operation when VCC pin voltage rises and VCC > VUVLO1 (13.5 V typ).Switching function starts when other protection functions are judged as normal. Until the secondary output voltage becomes constant level, VCC voltage drops because of the VCC consumption current. VCC recharge function start if VCC voltage < VCHG1 8.7V typ With the soft start function, over current limit value is restricted to prevent any excessive rise in voltage or current. When the switching operation starts, VOUT rises.The output voltage become to stable state, VCC voltage also become to stable state through auxiliary winding.Please set the rated voltage within the TFOLP1b period (32ms typ) from VCC voltage > VUVLO1. During a light load, if it reaches FB voltage < VBST (= 0.4Vtyp), the IC starts burst operation to keep power consumption low.During burst operation, it becomes low-power consumption mode. When the FB VoltageVFOLP1A=2.8V typ, it becomes a overload operation. When FB pin voltage keeps VFOLP1A (= 2.8V typ) at or above TFOLP1 (64ms typ), the overload protection function is triggered and switching stops 64ms later. If the FB pin voltage becomes FB<VFOLP1B even once, the IC's FB OLP timer is reset. If the VCC voltage drops to VCC < VUVLO2 (8.2Vtyp) or below, restart is executed. The IC's circuit current is reduced and the VCC pin value rises. (Same as B) www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 7/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series (3) VCC pin protection function BM2PXX3F built in VCC low voltage protection function VCCUVLO (Under Voltage Lock Out), over voltage protection function VCC OVP (Over Voltage Protection) and VCC charge function that operates in case of dropping the VCC voltage.VCC UVLO and VCC OVP monitor VCC pin and prevent VCC pin from destroying switching MOSFET at abnormal voltage. VCC charge function stabilizes the secondary output voltage by charging from the high voltage line by start circuit at dropping the VCC voltage. (3-1) VCC UVLO VCC OVP function VCCUVLO is auto recovery protection. VCCOVP is latch protection. Refer to the operation figure-8. VCCOVP built in mask time TLATCHtyp=100us.By this function, this IC masks pin generated surge etc. This function operates detection in case of continuing VCC pin voltage > VOVP1 typ=27.5V VH Vovp1 VCC VUVLO1 VCHG2 VCHG1 VUVLO2 VLATCH Time ON ON OFF VCC UVLO ON VCC OVP OFF ON ON VCC Charge Function OFF ON OUT Switching OFF OFF Time A B C D EF G H I JK A Figure 8. VCC UVLO / OVP Timing Chart A: B: C: D: E: F: G: H: I: J: K: DRAIN voltage input, VCC pin voltage starts rising. VCC>VUVLO1, DC/DC operation starts VCC< VCHG1, VCC charge function operates and the VCC voltage rises. VCC > VCHG2, VCC charge function is stopped. VCC > VOVP1, function is detected VCC > VOVP1, continues TLATCH (typ =100us), switching is stopped by the VCCOVP function. VH is OPEN.VCC Voltage is fall. Same as C. Same as D. VCC<VUVLO2, Switching is stopped by the VCC UVLO function VCC< VLATCH, released from latch www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 8/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series 3-2VCC Charge function After VCC charge function operates once the VCC pin >VUVLO1 and the DC/DC operation starts then the VCC pin voltage drops to <VCHG1. At that time the VCC pin is charged from DRAIN pin through start circuit. By this operation, BM2PXX2 doesn't occur to start failure. When VCC pin voltage rises to VCC >VCHG2, charge is stopped. The operations are shown in figure 9. VH VUVLO1 VCHG2 VCC VCHG1 VUVLO2 Switching VH charge charge charge charge charge OUTPUT voltage A B C D E F G H Figure 9. Charge operation VCC pin charge operation A: B: C: D: E: F: G: H: DRAIN pin voltage rises, charge starts to VCC pin by the VCC charge function. VCC > VUVLO1, VCC UVLO function releases, VCC charge function stops, DC/DC operation starts. When DC/DC operation starts, the VCC voltage drops. VCC < VCHG1, VCC recharge function operates and VCC pin voltage rises... VCC > VCHG2, VCC recharge function stops. VCC < VCHG1, VCC recharge function operates and VCC pin voltage rises... VCC > VCHG2, VCC recharge function stops. After start of output voltage finished, VCC is charged by the auxiliary winding VCC pin stabilizes. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 9/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series (4) DCDC driver (PWM comparator, frequency hopping, slope compensation, OSC, burst) BM2PXX3F is current mode PWM control. An internal oscillator sets a fixed switching frequency (65kHz typ). BM2PXX3F is integrated switching frequency hopping function which changes the switching frequency to fluctuate as shown in Figure 10 below. The fluctuation cycle is 125 Hz typ. Switching Frequency [kHz] 500us 69 68 67 66 65 64 63 62 61 125 Hz(8ms) Time Figure 10. Frequency hopping function Max duty cycle is fixed as 75% (typ) and MIN pulse width is fixed as 400 ns (typ). With current mode control, when the duty cycle exceeds 50% sub harmonic oscillation may occur. As a countermeasure to this, BM2PXX3F is built in slope compensation circuits. BM2PXX3F is built in burst mode circuit and frequency reduction circuit to achieve lower power consumption, when the load is light. FB pin is pull up by RFB (30 k typ). FB pin voltage is changed by secondary output voltage (secondary load power). FB pin is monitored, burst mode operation and frequency detection start. Figure 12 shows the FB voltage, and switching frequency, DCDC operation mode1: Burst operation mode2: Frequency reduction operation. mode3: Fixed frequency operation. mode4: Over load operation. (operate at the max frequency) (detect the over load state and stop the pulse operation) Y mode1 mode2 mode3 mode4 65kHz 25kHz 0.40V Figure 11. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 1.25V 2.00V 2.80V FB [V] X Switching operation state changes by FB pin voltage 10/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series (5) Over Current limiter BM2PXX3F is built in Over Current limiter per cycle. If the SOURCE pin exceeds a certain voltage, switching is stopped. It is also built in AC voltage compensation function. This is the function which compensates the maximum power as the AC voltage's change by increasing over current limiter with time. Shown in figure-12, 13, and 14. 65kHz(15.3us) 65kHz(15.3us) ON [DC/DC] @AC100V ON [DC/DC] @AC100V OFF OFF [DC/DC] @AC240V OFF OFF ON ON OFF [DC/DC] @AC100V OFF OFF OFF Iepak(AC)@Vin=240V Iepak(AC)@Vin=240V Iepak(AC)@Vin=100V Iepak(AC)@Vin=100V Iepak(DC)= included conpensation Iepak(DC)Constant Tdelay Tdelay Tdelay Tdelay Primary Peak Current Primary Peak Current Figure 12. No AC voltage compensation function Figure13. built-in AC compensation voltage Primary peak current is decided as the formula below. Primary peak current: Ipeak = Vcs/Rs + Vdc/Lp*Tdelay Vcs Over current limiter voltage internal IC, RsCurrent detection resistance, Vdc input DC voltage, Lp Primary inductance, Tdelaydelay time after detection of over current limiter Y CS Limitter[V] 0.704V +20mV/us 0.552V 0.400V 0.0 X 7.6us 15.3us Time [us] Figure 14. Over current limiter voltage 6L.E.B period When the driver MOSFET is turned ON, surge current occurs at each capacitor component and drive current. Therefore, because SOURCE pin voltage rises temporarily, the detection errors may occur in the over current limiter circuit. To prevent detection errors, DRAIN is switched from high to low and the SOURCE signal is masked for 250 ns by the on-chip LEB (Leading Edge Blanking) function. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 11/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series (7) SOURCE pin (5pin) short protection function When the SOURCE pin (5pin) is shorted, BM2PXX3F is over heat. BM2PXX3F built in short protection function to prevent destroying. (8) SOURCE pin (5pin) open protection If the SOURCE pin becomes OPEN, BM2PXX3F may be damaged. To prevent to be damaged, BM2PXX3F built in OPEN protection circuitauto recovery protection. (9) Output over load protection function FB OLP Comparator The output overload protection function monitors the secondary output load status at the FB pin, and stops switching when an overload occurs. In case of an overload, the output voltage is reduced and current no longer flows to the photo coupler, so the FB pin voltage rises. When the FB pin voltage > VFOLP1A (2.8 V typ) continuously for the period TFOLP1 (64ms typ), it is judged as an overload and stops switching. When the FB pin > VFOLP1A (2.8 V typ), if the voltage goes lower than VFOLP1B (2.6V typ) during the period TFOLP1 (64ms typ), the overload protection timer is reset. The switching operation is performed during this period TFOLP1 (64ms typ). At startup, the FB voltage is pulled up to the IC's internal voltage, so operation starts at a voltage of V FOLP1A (2.8 V typ) or above. Therefore, at startup the FB voltage must be set to go to VFOLP1B (2.6 V typ) or below during the period TFOLP1 (64ms typ), and the secondary output voltage's start time must be set within the period TFOLP1 (64ms typ) following startup of the IC. Recovery from the once detection of FBOLP, after the period T FOLP2 (512 ms typ) VFOLP 1A FB VH charge charge charge 64ms 64ms Switching 512ms VUVLO 1 VCHG 2 VCC 512ms VCHG1 VUVLO 2 A B C D E F G H Figure 15. Over load protection (Auto recovery) A: The FBOLP comparator detects over load for FB>VFOLP1A B: If the State of A continues for the period TFOLP1 (64ms typ), it is judged as an overload and stops switching after 64ms. C: While switching stops for the over load protection function, the VCC pin voltage drops and VCC pin voltage reaches < VCHG1, the VCC charge function operates so the VCC pin voltage rises. D: VCC charge function stops when VCC pin voltage > VCHG2 E: If TFOLP2 typ =512ms go on from B point, Switching function starts on soft start. F: If TFOLP1 (64ms typ) go on from E point to continues an overload condition (FB>VFOLP1A), Switching function stops at F point. G: While switching stops VCC pin voltage drops to < VCHG1, VCC charge function operates and VCC pin voltage rises. H: If VCC pin (1pin) voltage becomes over VCHG2 by the VCC charge function, VCC charge function operation stops. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 12/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series Operation mode of protection circuit Operation mode of protection functions are shown in table2. Table2 Operation mode of protection circuit Function Operation mode VCC Under Voltage Locked Out Auto recovery VCC Over Voltage Protection Latchwith 100us timer TSD Latchwith 100us timer FB Over Limited Protection SOURCE Open Protection Auto recoverywith 64ms timer Auto recovery Sequence The sequence diagram is show in Fig-18. All condition transits OFF Mode VCC<8.2V VCC<8.2V ALL MODE OFF MODE VCC> 13.5V Soft Start 1 Time >0. 5ms Soft Start 2 Time>1.0ms Soft Start 3 Time >2.0ms VCC<7.7V Soft Start 4 Time >8.0ms SOURCE OPEN ( Pulse Stop ) NORMAL FBOLP OFF TIMER ( 512 ms) OPEN Normal MODE VCC>27.5V Temp>145 LATCH OFF MODE (Pulse Stop ) FB>2.80V PULSE OFF FB>2.80 V (64ms) FB< 2.60V OLP MODE (Pulse Stop ) FB<0.40 V FB> 0. 40V Burst MODE ( Pulse OFF ) Figure 16. The sequence diagram www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 13/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series Thermal loss The thermal design should set operation for the following conditions. (Since the temperature shown below is the guaranteed temperature, be sure to take a margin into account.) 1. The ambient temperature Ta must be 105 or less. 2. The IC's loss must be within the allowable dissipation Pd. The thermal abatement characteristics are as follows. (PCB: 70 mm x 70mm x 1.6 mm, mounted on glass epoxy single-layer substrate) 1000 900 800 700 Pd[mW] 600 500 400 300 200 100 0 0 25 50 75 100 125 150 Ta[] Figure 17. SOP8 Thermal Abatement Characteristics www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 14/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series Ordering Information B M 2 P X X 3 F - Package F : SOP8 Product name GE2 Packaging and forming specification E2: Embossed tape and reel Marking Diagram SOP8 (TOP VIEW) Part Number Marking LOT Number 1PIN MARK Series www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 Part Number BM2P053F 2P053 BM2P093F 2P093 15/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series Physical Dimension, Tape and Reel Information Package Name SOP8 (Max 5.35 (include. BURR)) (UNIT: mm) PKG: SOP8 Drawing No. : EX112-5001-1 www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 16/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series Operational Notes 1. Reverse Connection of Power Supply Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when connecting the power supply, such as mounting an external diode between the power supply and the IC's power supply pins. 2. Power Supply Lines Design the PCB layout pattern to provide low impedance supply lines. Separate the GND and supply lines of the digital and analog blocks to prevent noise in the GND and supply lines of the digital block from affecting the analog block. Furthermore, connect a capacitor to GND at all power supply pins. Consider the effect of temperature and aging on the capacitance value when using electrolytic capacitors. 3. GND Voltage Ensure that no pins are at a voltage below that of the GND pin at any time, even during transient condition. 4. GND Wiring Pattern When using both small-signal and large-current GND traces, the two GND traces should be routed separately but connected to a single GND at the reference point of the application board to avoid fluctuations in the small-signal GND caused by large currents. Also ensure that the GND traces of external components do not cause variations on the GND voltage. The GND lines must be as short and thick as possible to reduce line impedance. 5. Thermal Consideration Should by any chance the power dissipation rating be exceeded the rise in temperature of the chip may result in deterioration of the properties of the chip. The absolute maximum rating of the Pd stated in this specification is when the IC is mounted on a 70mm x 70mm x 1.6mm glass epoxy board. In case of exceeding this absolute maximum rating, increase the board size and copper area to prevent exceeding the Pd rating. 6. Recommended Operating Conditions These conditions represent a range within which the expected characteristics of the IC can be approximately obtained. The electrical characteristics are guaranteed under the conditions of each parameter. 7. Inrush Current When power is first supplied to the IC, it is possible that the internal logic may be unstable and inrush current may flow instantaneously due to the internal powering sequence and delays, especially if the IC has more than one power supply. Therefore, give special consideration to power coupling capacitance, power wiring, width of GND wiring, and routing of connections. 8. Operation Under Strong Electromagnetic Field Operating the IC in the presence of a strong electromagnetic field may cause the IC to malfunction. 9. Testing on Application Boards When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may subject the IC to stress. Always discharge capacitors completely after each process or step. The IC's power supply should always be turned off completely before connecting or removing it from the test setup during the inspection process. To prevent damage from static discharge, GND the IC during assembly and use similar precautions during transport and storage. 10. Inter-pin Short and Mounting Errors Ensure that the direction and position are correct when mounting the IC on the PCB. Incorrect mounting may result in damaging the IC. Avoid nearby pins being shorted to each other especially to GND, power supply and output pin. Inter-pin shorts could be due to many reasons such as metal particles, water droplets (in very humid environment) and unintentional solder bridge deposited in between pins during assembly to name a few. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 17/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series Operational Notes - continued 11. Unused Input Pins Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small charge acquired in this way is enough to produce a significant effect on the conduction through the transistor and cause unexpected operation of the IC. So unless otherwise specified, unused input pins should be connected to the power supply or GND line. 12. Regarding the Input Pin of the IC This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them isolated. P-N junctions are formed at the intersection of the P layers with the N layers of other elements, creating a parasitic diode or transistor. For example (refer to figure below): When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode. When GND > Pin B, the P-N junction operates as a parasitic transistor. Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate) should be avoided. Figure 18. Example of monolithic IC structure Resistor Transistor (NPN) Pin A Pin B C E Pin A N P+ P N N P+ N Pin B B Parasitic Elements N P+ N P N P+ B N C E Parasitic Elements P Substrate P Substrate GND GND Parasitic Elements Parasitic Elements GND GND N Region close-by 13. Ceramic Capacitor When using a ceramic capacitor, determine the dielectric constant considering the change of capacitance with temperature and the decrease in nominal capacitance due to DC bias and others. 14. Area of Safe Operation (ASO) Operate the IC such that the output voltage, output current, and power dissipation are all within the Area of Safe Operation (ASO). 15. Thermal Shutdown Circuit(TSD) This IC has a built-in thermal shutdown circuit that prevents heat damage to the IC. Normal operation should always be within the IC's power dissipation rating. If however the rating is exceeded for a continued period, the junction temperature (Tj) will rise which will activate the TSD circuit that will turn OFF all output pins. The IC should be powered down and turned ON again to resume normal operation because the TSD circuit keeps the outputs at the OFF state even if the TJ falls below the TSD threshold. Note that the TSD circuit operates in a situation that exceeds the absolute maximum ratings and therefore, under no circumstances, should the TSD circuit be used in a set design or for any purpose other than protecting the IC from heat damage. 16. Over Current Protection Circuit (OCP) This IC incorporates an integrated overcurrent protection circuit that is activated when the load is shorted. This protection circuit is effective in preventing damage due to sudden and unexpected incidents. However, the IC should not be used in applications characterized by continuous operation or transitioning of the protection circuit. www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 18/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 BM2PXX3F Series date Rev. No. 2012.07.19 001 2013.11.18 005 2015.02.23 006 P1 Package size P16 Physical Dimension 2015.05.15 007 P13 Operation mode of protection circuit P13 Sequence 2015.09.24 008 2017.03.07 009 2018.11.29 010 Revision Point New Release P7 An explanation for Figure7 P8 An explanation for VCC_UVLO/VCC_OVP function An explanation for Figure8 P11 An explanation for Over Current limiter P12 An explanation for Output over load protection function An explanation for Figure15 P13 Table2 P7 An explanation of Start sequence P8 An explanation of VCC pin protection function P8 An explanation of VCC UVLO / VCC OVP function P9 An explanation of VCC Charge function P11 An explanation of Over Current Limiter P12 An explanation of Output over load protection function P2 explanation of package power P2 Format for Electrical Characteristics of MOSFET P3 Format for Electrical Characteristics of Control IC P3 An explanation of Thermal shut down temperature P7 An explanation of Start sequences P8 An explanation of Figure8 P9 An explanation of VCC pin protection function P12 An explanation of OUTPUT over load protection function P1 Features and Basic specifications P1 Application circuit P2 An explanation of Absolute Maximum Ratings www.rohm.com (c) 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115001 19/19 TSZ02201-0F2F0A200060-1-2 29.Nov.2018.Rev.010 Notice Precaution on using ROHM Products 1. Our Products are designed and manufactured for application in ordinary electronic equipment (such as AV equipment, OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1), transport equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property ("Specific Applications"), please consult with the ROHM sales representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ROHM's Products for Specific Applications. (Note1) Medical Equipment Classification of the Specific Applications JAPAN USA EU CHINA CLASS CLASSb CLASS CLASS CLASS CLASS 2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which a failure or malfunction of our Products may cause. The following are examples of safety measures: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. Our Products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of any ROHM's Products under any special or extraordinary environments or conditions. If you intend to use our Products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents [b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust [c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves [e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items [f] Sealing or coating our Products with resin or other coating materials [g] Use of our Products without cleaning residue of flux (Exclude cases where no-clean type fluxes is used. However, recommend sufficiently about the residue.) ; or Washing our Products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] Use of the Products in places subject to dew condensation 4. The Products are not subject to radiation-proof design. 5. Please verify and confirm characteristics of the final or mounted products in using the Products. 6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse, is applied, confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect product performance and reliability. 7. De-rate Power Dissipation depending on ambient temperature. When used in sealed area, confirm that it is the use in the range that does not exceed the maximum junction temperature. 8. Confirm that operation temperature is within the specified range described in the product specification. 9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in this document. Precaution for Mounting / Circuit board design 1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2. In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice-PGA-E (c) 2015 ROHM Co., Ltd. All rights reserved. Rev.004 Precautions Regarding Application Examples and External Circuits 1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2. You agree that application notes, reference designs, and associated data and information contained in this document are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. Precaution for Electrostatic This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control). Precaution for Storage / Transportation 1. Product performance and soldered connections may deteriorate if the Products are stored in the places where: [a] the Products are exposed to sea winds or corrosive gases, including Cl 2, H2S, NH3, SO2, and NO2 [b] the temperature or humidity exceeds those recommended by ROHM [c] the Products are exposed to direct sunshine or condensation [d] the Products are exposed to high Electrostatic 2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is exceeding the recommended storage time period. 3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of which storage time is exceeding the recommended storage time period. Precaution for Product Label A two-dimensional barcode printed on ROHM Products label is for ROHM's internal use only. Precaution for Disposition When disposing Products please dispose them properly using an authorized industry waste company. Precaution for Foreign Exchange and Foreign Trade act Since concerned goods might be fallen under listed items of export control prescribed by Foreign exchange and Foreign trade act, please consult with ROHM in case of export. Precaution Regarding Intellectual Property Rights 1. All information and data including but not limited to application example contained in this document is for reference only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. 2. ROHM shall not have any obligations where the claims, actions or demands arising from the combination of the Products with other articles such as components, circuits, systems or external equipment (including software). 3. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any third parties with respect to the Products or the information contained in this document. Provided, however, that ROHM will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to manufacture or sell products containing the Products, subject to the terms and conditions herein. Other Precaution 1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM. 2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of ROHM. 3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the Products or this document for any military purposes, including but not limited to, the development of mass-destruction weapons. 4. The proper names of companies or products described in this document are trademarks or registered trademarks of ROHM, its affiliated companies or third parties. Notice-PGA-E (c) 2015 ROHM Co., Ltd. All rights reserved. Rev.004 Datasheet General Precaution 1. Before you use our Products, you are requested to carefully read this document and fully understand its contents. ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of any ROHM's Products against warning, caution or note contained in this document. 2. All information contained in this document is current as of the issuing date and subject to change without any prior notice. Before purchasing or using ROHM's Products, please confirm the latest information with a ROHM sales representative. 3. The information contained in this document is provided on an "as is" basis and ROHM does not warrant that all information contained in this document is accurate and/or error-free. ROHM shall not be in any way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccuracy or errors of or concerning such information. Notice - WE (c) 2015 ROHM Co., Ltd. All rights reserved. Rev.001