name tenia ee 19-0132; Rav 1; 3/93__ General Description The MAX4426/4427/4428 are dual monolithic MOSFET drivers designed to translate TTL/CMOS inputs to high voltage/current outputs. The MAX4426 is a dual inverting power MOSFET driver. The MAX4427 is a dual noninvert- ing power MOSFET driver, and the MAX4428 contains one inverting section and one noninverting section. Delay times are nearly independent of Vbp (see Typical Operating Characteristics). High-current output drivers rapidly charge and discharge the gate capacitance of even the largest power MOSFETs to within millivolts of the supply rails. This produces the power MOSFETs minimum on resistance. The MAX4426/4427/4428's high speed mini- mizes power losses in switching power supplies and DC-DC converters. Applications Switching Power Supplies DC-DC Converters SALA XL/V Dual High-Speed 1.54 MOSFET Drivers Features @ Upgrade for TSC4426/4427/4428 @ Lower On Resistance: 442 vs, 7Q @ Shorter Delay Times: to: - 10ns vs. 30ns to2 25ns vs. 5O0ns 1.5A Peak Output Current Fast Rise and Fali Times: Typically 20ns with 1000pF Load Wide Operating Range: 4.5V to 18V @ Low Power Consumption: 1.8mA with Logic 1 Input 200,A with Logic 0 Input @ TTL/CMOS Compatible @ Latchup Protected - Withstand >500mA Reverse Current @ ESD Protected Ordering Information { ). | _ PART TEMP. RANGE PIN-PACKAGE | Motor Controllers |MAX4a26CPA OC 10 470C sranicoP | Pin-Diode Drivers MAX4426CSA OCto+70C 8SO Charge-Pump Voltage inverters MAX44260/0 OCto+70 Dice _ MAX4426EPA -40 C to +85 C 8Plasuc DIP | . fi MAX4426ESA -40 C to +85 C 8SO | ________. Pin Configurations [wnsz AOC to +85 C ecerpip | TOP VIEW TMAXa426MJA 56 Cw +125 C 8 CERDIP* _ Ordering Information continued on last page. NE. Ly] B[NC. * Dice are tested at Ta = +25C. ALE) pan sarer aa [Zs OUTA 2.4 75 ** Contact factory for availabilty and processing to MIL-STD-883 GNO [3S] max4d26 6! vio ra] = . . - e is is. Our VERTING Typical Operating Circuit DIP/SO Voy - 18V on A . e NC. La ra} NC. 4a + : Ape Na [2 7 | outa 24 75 : AAAXIAA' ! - gun ee an -| >= MNAXIAA ne a > our MAX4426 NONINVERTING Input | - oui DIP/SO A : 7 _ en 2 | . 7 - (INPUT | a QuUIPUT: ne. fr a] NC al 2] amarAal 7 OTA eno a} MAx4428 ie io ina 14 5 ours 4 >* DIP/SO MA XKIsVI Maxim integrated Products | Call toil free 1-800-998-8800 for free samples or literature. 8Scrb/LoerE/9crrxXUWMAX4426/4427/4428 Dual High-Speed 1.54 MOSFET Drivers ABSOLUTE MAXIMUM RATINGS Supply Voltage Vop to GND. +20V input Voltage 2.6... 2. Voo + 0.3V to GND - 0.3V Continuous Power Dissipation (Ta = +70C) Plastic DIP (derate 9.09mW/'C above +70C) ...... 727mW SO (derate .88mW/"C above +70C) .......... . 471MmW CERDIP (derate 8.00mW/'C above 70C)....... .. 640mW Operating Temperature Ranges: MAX442_C__ a MAX442 Eo .. MAX442_ MJA .......... Storage Temperature Range Maximum Chip Temperature .. Lead Temperature (soldering. 10 sec) ... ..0C1o+70C -40C to +B5 C .. 65 C19 4+125C -56C to +160 C +150 C +300 C Siresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only. and functional operation of the device ai these or any other conditions beyond those indicated in the operational sections of the speciticakons is not implied. xposure tu absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (Vop = +4.5V to +18V. Ta = TMIN to TMax, unless otherwise specified.) PARAMETER SYMBOL CONDITIONS Logic 1 Input Voltage Vit 24 Logic 0 Input Voltage VL Input Current fin VIN = OV to 18V +4 Output High Voltage VOH Na toad Von-25 Output Low Voltage VOL No load ne es eel TOO | TTT 7 | oo Vin = 0.8V for inverting stages, | Ta = +25C VIN = 2.4V for noninverting . = Stages TasT toT Output Resistance Rout 100 = JBN aA aes wey As IMIN To MAX! Vin = 2.4V lor inverting stages. | Ta= +25C Vin = 0.8V for noninverting stages Ta = TMiNn to Tvax Peak Output Current IpK Vpp = 18V Vin=+3V0 | TA= +25C Power-Supply IsupP bothinputs lt, Twin to TMAX Current sd or VIN - QV Ta = +25 Cc both inputs Ta = Tain to TMAX Taz +25C Rise Time (Note 1} tr - TA = TMIN to TMAX Ta = +25C Fall Time (Note 1) tr LTA = +25 ~____ - Ta = TMIN to TMAX Ta=+25C tor -/- Delay Time (Note +) L_ _TA= TMIN to TMAX _ Ta = +25C to2 Ta = TMiN to TMax Note 1: Switching times guaranteed by design, not tested. See Figure 1 for timing measurement Circuil. > non f& 18 2.5 a? 03 20 25 5 10 15 25 30 O8 i 25 10 12 10 1? 45 8.0 0.4 06 30 40 36 40 30 40 50 60 | MIN TYP MAX UNITS Vv v A mv mv Q ns ns ns SUA KI SIDual High-Speed 1.54 MOSFET Drivers TIME (ns} TIME (ns) SUPPLY CURRENT {mA) MAXI! MAX4426 RISE AND FALL TIME vs. SUPPLY VOLTAGE Ci = 1000pF Tas 425 10 18 26 SUPPLY VOLTAGE (V) MAX4426 DELAY TIME vs. TEMPERATURE 64 = 1000p 30 Von = +18V 25 <a Ib2 3-25 0 2 7 10 12 TEMPERATURE (C) MAX4426 SUPPLY CURRENT vs. FREQUENCY TTT * T Ta- +25C . 1 Cat rr] 0 ia! t 10 100 FREQUENCY (kHz) 1000 SUPPLY CURRENT (mA) TIME (ns} (Vp - Vour) {V) MAX4426 DELAY TIME vs. SUPPLY VOLTAGE C=1 Ta = 425" 5 itt) 5 20 SUPPLY VOLTAGE (V) MAX4426 SUPPLY CURRENT vs. CAPACITIVE LOAO Taz -28C 400kH2 Vop = +18V mM 10 100 1000 CAPACITIVE LOAD (pF) 19000 MAX4426 OUTPUT HIGH VOLTAGE vs. SOURCE CURRENT Tax 429 Von = +8V Yoo = +43V Vno = +18V 0 0 10 20 30 40 50 60 70 80 90 100 SOURCE CURRENT (mA} TIME (ns) OUTPUT VOLTAGE (V) 03 58-25 Gh HOS TEMPERATURT ( C} 0 1 Typical Operating Characteristics MAX4426 RISE AND FALL TIME vs. TEMPERATURE MAX4426 RISE AND FALL TIME vs. CAPACITIVE LOAD iit ae TA = 425 C You ~ 9 1V 10 100 inno CAPACITIVE LOAD (pF) 19000 MAX4426 OUTPUT LOW VOLTAGE vs. SINK CURRENT Tt | qT TOE F Ta- 1256 I Vpn - s8V Bile . Vat 9 13V Pot 4 von av 0 10 20 30 40 SQ 60 7 8M 90 100 SINK CURRENT (tA) SCrb/Lerr/9ErrxvUNMAX4426/4427/4428 Dual High-Speed 1.54 MOSFET Drivers Applications Information The MAX4426/4427/4428 have easy-to-drive inputs. However, these inputs must never be allowed to stay between VIH and Vit for more than SOns. Unused inputs should always be connected to ground to minimize supply current. Drivers can be paralleled on the MAX4426 or MAX4427 by tying both inputs together and both outputs together. Supply bypassing and grounding are extremely impor- tant with the MAX4426/4427/4428, as the peak supply current can be as high as 3A, which is twice the peak output current. Ground drops are a form of negative feedback with inverters, and hence will degrade the delay and transition time of the MAX4426/MAX4428. Suggested bypass capacitors are a 4.7uF (low ESR) ca- pacitor in parallel with a 0. 1uF ceramic capacitor, mounted as close as possible to the MAX4426/4427/4428. Use a ground plane if possible or separate ground returns for inputs and outputs. Output voltage ringing can be mini- mized with a 5Q to 200 resistor in series with the output, but this will degrade output transition time. Ringing may be undesirable due to the large current that flows through capacitive loads when the voltage across these loads transitions quickly. Operation at the upper end of the supply voltage range (>15V) requires that a capacitance of at least 50pF be present at the outputs. This prevents the supply voltage provided to the die (which can be different from that seen at the IC supply pin) from exceeding the 20V absolute maximum rating, due to overshoot. Since at least SOpF of gate capacitance is present in all higher power FETs, this requirement is easily met. Power Dissipation The MAX4426/4427/4428 power dissipation consists of input inverter losses, crowbar current through the output devices, and output current (either capacitive or resis- tive). The sum of these must be kept below the maximum power dissipation limit. The DC input inverter supply current is 0.2mA when both inputs are low and 2mA when both inputs are high. The crowbar curren! through an output device making a transition is approximately 100mA for a few nanosec- onds. This is a small portion of the total supply current, except for high switching frequencies or a small load capacitance (100pF). The MAX4426/4427/4428 power dissipation when driving a ground-referenced resistive load is: P = (D) (roNqax)) (ILOAD?) where D is the percentage of time the MAX4426/4427/4428 output pulls high, ron(MAx) is the MAX4426/4427/4428 maximum on resistance, and LOAD is the MAX4426/4427/4428 load current. For capacitive loads, the power dissipation is: P = (CLOAD) (VoD*) (FREQ) where CLOAD is the capacitive load. Vpp is the MAX4426/4427/4428 supply voltage, and FREQ is the toggle frequency. SUA AI vlDual High-Speed 1.5A MOSFET Drivers Voo = +18V Tuk? q O.4aF PADAM MAX4428 weuT -- +> OUTPUT Tr 1000pF INPUT -- [>] + OUTPUT | 1000pF INPUT RISE } ANDFALL 45yo + INPUT TIMES = 5ns 90% 40.4y 10% 1 a IDI luz INVERTING % [7 OUTPUT NONINVERTH ERTS Ov. 10% L 10% Figure 1. Inverting and Noninverting Test Circuit IMAKI/VI __ Ordering Information (continued) = [ PART TEMP.RANGE = PIN-PACKAGE | | B MAX4427CPA 0 C.10 + 70C BPlastic IP SS fmanaezicsa _ocio+70C 880 MAX4427C/D OCtO+70C Dice" 1 & | maxas27EPA __-40C to 485C 8 Plastic DIP i) MAX4427ESA_ 40. C to +85 C BSO ' oO [waxeazresa 40C to +86C BCERDIP s MAX4427MJA -55'C to +125 C 8 CERDIP** A MAX4428CPA_ OC ta +70 C 8 Plastic DIP \ MAX4428CSA OCto+70C 8SO | PMaceazeC aC to+70C Diee* x LMAX4428EPA _-40'C 10 +85 C 8 Plastic DIP A MAX4428ESA -40'C 10. +85 C 880 WN) | MaKaazee ia -40 C to +85 C 8 CERDIP 6 _MAX4428MJA 55C to 125C 8 CERDIP* * Dice are tested at Ta = +25C. *" Contact factory for availability and processing to Mil.-STD-883 Chip Topography OUTA (OUTA FOR MAX4427/MAX4428) 0767 {(1.93mm) INB ouTe (QUTE FOR MAX4426) (2.032mm) SUBSTRATE CONNECTED TO Vop: TRANSISTOR COUNT: 26. MAX4427/MAX4428MAX4426/4427/4428 Dual High-Speed 1.54 MOSFET Drivers aoe MAX LEAD wt oor. 0.250 - 2005 00% Gita Qe 812 F754 MO 16356 - 0127 uty ams -a0is ows -o0is | A136 - 008 oar aay oz rt (2508) (0.457 - 0078) V8] - 0.205 0.228 - 0.244 (6597 - $207 S78 - 6198) LEAD 1 ' Goat 808 0356 -0457 | gars - ogee | ib4s7 - 0555) be rice es laste t-346 - 1.753) B Lead Small Outline Qj, = 170 CAV Oyo = 80 C/W 0.007 0.009 (0178 0.2264 Maxim cannot assume responsibility for use of any circuitry other 0.018 - 8.003 gtel | UW aoe Foe typ fi a ozs a 8 529 O3l ans 0.100 - 8.010 "12540 - 0254 8 Lead Plastic DIP Qj = 120C/AW Qj = 70 C/W 0400 110360: pee TAD o2g1 - Rab am | {me fh ion Het 9020 Caz 15000 MAY see 1 dy Bie ay EX a1 7a 4 AH Lae 2.069 4 ieee |. Dare - 00g \ 0100 - ps0 eT Oey 17540 gasg hm 9778 - 08% 8 Lead CERDIP Oi, = 125 CAW ..- 55 C/W than circuitry entirely embodied in a Maxim product No circus patent teenses are implied Maxim reserves the right to change the circuitry and specifications without notice at any lime. 6 Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 1/1 is a registered trademark of Maxim integrated Producis 1993 Maxim integrated Products Printed USA MAK Package information orm 2370 17368 BA2RY