EricssonInternal Limited Internal TABLE OF CONTENTS PRODUCT SPECIFICATION E Prepared (also subject responsible if other) SEC/D Kevin Chen SEC/S Approved PKB 4717 PINB SEC/S SEC/D Kevin Julia You Chen 1 (1) (3) No. Checked 1/1301-BMR636 00152-EN/LZT146 01/A4 382 Uen Specification Technical Date 2007-6-21 DC/DC converters, Input 36-75 V, Output 10.5 A/75 W Rev Reference EN/LZT 146 382 R1A June 2007 A (c) Ericsson Power Modules AB Key Features * Industry standard Eighth-brick 58.4 x 22.7 x 8.10 mm (2.300 x 0.894 x 0.323 in.) * High efficiency, typ. 92 % at half load * 2250 Vdc input to output isolation * Meets isolation requirements equivalent to basic insulation according to IEC/EN/UL 60950 * More than 1.5 million hours predicted MTBF at +40C ambient temperature General Characteristics * Suited for narrow board pitch applications (15 mm/0.6 in) * Output over voltage protection * Input under voltage shutdown * Over temperature protection * Output short-circuit protection * Remote sense * Remote control * Output voltage adjust function * Highly automated manufacturing ensures quality * ISO 9001/14001 certified supplier * Optimized for high capacity load Safety Approvals Pending Contents General Information Safety Specification Absolute Maximum Ratings ............................................................. 2 ............................................................. 3 ............................................................. 4 Product Program 7.2 V/10.5 A Electrical Specification Ordering No. PKB 4717 PINB ................................... 5 EMC Specification Operating Information Thermal Consideration Connections Mechanical Information Soldering Information Delivery Information Product Qualification Specification ............................................................. 8 ............................................................. 9 ........................................................... 10 ........................................................... 11 ........................................................... 12 ........................................................... 13 ........................................................... 13 ........................................................... 14 Design for Environment Meets requirements in hightemperature lead-free soldering processes. Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 2 (3) No. SEC/S Kevin Chen Approved Checked PKB 4717 SEC/S KevinPINB Chen 1/1301-BMR636 Technical 01/A4 Uen Specification Date Rev 2007-6-21 DC/DC converters, Input 36-75 V, Output 10.5 A/75 W 2 Reference EN/LZT 146 382 R1A June 2007 A (c) Ericsson Power Modules AB made of Brass) General Information Ordering Information Quality Statement See Contents for individual product ordering numbers. The products are designed and manufactured in an industrial environment where quality systems and methods like ISO 9000, 6 (sigma), and SPC are intensively in use to boost the continuous improvements strategy. Infant mortality or early failures in the products are screened out and they are subjected to an ATE-based final test. Conservative design rules, design reviews and product qualifications, plus the high competence of an engaged work force, contribute to the high quality of our products. Option Positive Remote Control Logic Increased stand-off height Lead length 3.69 mm (0.145 in) Lead length 4.57 mm (0.180 in) Suffix P M LA LB Ordering No. PKB 4717 PIPNB PKB 4717 PINBM PKB 4717 PINBLA PKB 4717 PINBLB Note: As an example a positive logic, increased standoff, short pin product would be PKB 4717 PIPNBMLA. Reliability The Mean Time Between Failure (MTBF) is calculated at full output power and an operating ambient temperature (TA) of +40C, which is a typical condition in Information and Communication Technology (ICT) equipment. Different methods could be used to calculate the predicted MTBF and failure rate which may give different results. Ericsson Power Modules currently uses Telcordia SR332. Predicted MTBF for the series is: 1.5 million hours according to Telcordia SR332, issue 1, Black box technique. The Ericsson failure rate data system is based on field tracking data. The data corresponds to actual failure rates of components used in ICT equipment in temperature controlled environments (TA = -5...+65C). Telcordia SR332 is a commonly used standard method intended for reliability calculations in ICT equipment. The parts count procedure used in this method was originally modelled on the methods from MIL-HDBK-217F, Reliability Predictions of Electronic Equipment. It assumes that no reliability data is available on the actual units and devices for which the predictions are to be made, i.e. all predictions are based on generic reliability parameters. Compatibility with RoHS requirements The products are compatible with the relevant clauses and requirements of the RoHS directive 2002/95/EC and have a maximum concentration value of 0.1% by weight in homogeneous materials for lead, mercury, hexavalent chromium, PBB and PBDE and of 0.01% by weight in homogeneous materials for cadmium. Exemptions in the RoHS directive utilized in Ericsson Power Modules products include: Lead in high melting temperature type solder (used to solder the die in semiconductor packages) Lead in glass of electronics components and in electronic ceramic parts (e.g. fill material in chip resistors) Lead as an alloying element in copper alloy containing up to 4% lead by weight (used in connection pins Warranty Warranty period and conditions are defined in Ericsson Power Modules General Terms and Conditions of Sale. Limitation of Liability Ericsson Power Modules does not make any other warranties, expressed or implied including any warranty of merchantability or fitness for a particular purpose (including, but not limited to, use in life support applications, where malfunctions of product can cause injury to a person's health or life). Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) SEC/S Kevin Chen Approved PKB 4717 SEC/S KevinPINB Chen 3 (3) No. Checked 1/1301-BMR636 Technical 01/A4 Uen Specification Date Rev 2007-6-21 DC/DC converters, Input 36-75 V, Output 10.5 A/75 W 3 Reference EN/LZT 146 382 R1A June 2007 A (c) Ericsson Power Modules AB Safety Specification General information Ericsson Power Modules DC/DC converters and DC/DC regulators are designed in accordance with safety standards IEC/EN/UL60950, Safety of Information Technology Equipment. IEC/EN/UL60950 contains requirements to prevent injury or damage due to the following hazards: * * * * * * Electrical shock Energy hazards Fire Mechanical and heat hazards Radiation hazards Chemical hazards On-board DC-DC converters are defined as component power supplies. As components they cannot fully comply with the provisions of any Safety requirements without "Conditions of Acceptability". It is the responsibility of the installer to ensure that the final product housing these components complies with the requirements of all applicable Safety standards and Directives for the final product. Component power supplies for general use should comply with the requirements in IEC60950, EN60950 and UL60950 "Safety of information technology equipment". There are other more product related standards, e.g. IEEE802.3af "Ethernet LAN/MAN Data terminal equipment power", and ETS300132-2 "Power supply interface at the input to telecommunications equipment; part 2: DC", but all of these standards are based on IEC/EN/UL60950 with regards to safety. Ericsson Power Modules DC/DC converters and DC/DC regulators are UL60950 recognized and certified in accordance with EN60950. The flammability rating for all construction parts of the products meets requirements for V-0 class material according to IEC 60695-11-10. The products should be installed in the end-use equipment, in accordance with the requirements of the ultimate application. Normally the output of the DC/DC converter is considered as SELV (Safety Extra Low Voltage) and the input source must be isolated by minimum Double or Reinforced Insulation from the primary circuit (AC mains) in accordance with IEC/EN/UL60950. Isolated DC/DC converters It is recommended that a slow blow fuse with a rating twice the maximum input current per selected product be used at the input of each DC/DC converter. If an input filter is used in the circuit the fuse should be placed in front of the input filter. In the rare event of a component problem in the input filter or in the DC/DC converter that imposes a short circuit on the input source, this fuse will provide the following functions: * * Isolate the faulty DC/DC converter from the input power source so as not to affect the operation of other parts of the system. Protect the distribution wiring from excessive current and power loss thus preventing hazardous overheating. The galvanic isolation is verified in an electric strength test. The test voltage (Viso) between input and output is 1500 Vdc or 2250 Vdc for 60 seconds (refer to product specification). Leakage current is less than 1 A at nominal input voltage. 24 V DC systems The input voltage to the DC/DC converter is SELV (Safety Extra Low Voltage) and the output remains SELV under normal and abnormal operating conditions. 48 and 60 V DC systems If the input voltage to Ericsson Power Modules DC/DC converter is 75 Vdc or less, then the output remains SELV (Safety Extra Low Voltage) under normal and abnormal operating conditions. Single fault testing in the input power supply circuit should be performed with the DC/DC converter connected to demonstrate that the input voltage does not exceed 75 Vdc. If the input power source circuit is a DC power system, the source may be treated as a TNV2 circuit and testing has demonstrated compliance with SELV limits and isolation requirements equivalent to Basic Insulation in accordance with IEC/EN/UL60950. Non-isolated DC/DC regulators The input voltage to the DC/DC regulator is SELV (Safety Extra Low Voltage) and the output remains SELV under normal and abnormal operating conditions. Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 1 (5) No. EJUNGYA Approved PKB 4717 PINB SEC/D (LINDA ZHONG) 4 2/1301-BMR 636Technical 01/A4 Uen Specification Checked Date Rev Reference EN/LZT 146 382 R1A June 2007 2007-5-15 A DC/DC converters, Input 36-75 V, Output 10.5 A/75 W (c) Ericsson Power Modules AB Absolute Maximum Ratings Characteristics min Tref Operating Temperature (see Thermal Consideration section) TS Storage temperature VI Input voltage Viso Isolation voltage (input to output test voltage) Vtr Input voltage transient (tp 100 ms) VRC Remote Control pin voltage (see Operating Information section) Vadj Adjust pin voltage (see Operating Information section) typ max Unit -45 +110 C -55 +125 C -0.5 +80 V 2250 Vdc 100 V 6 V -0.5 40 V -0.5 2xVoi V Positive logic option -0.5 Negative logic option Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as no destruction limits, are normally tested with one parameter at a time exceeding the limits of Output data or Electrical Characteristics. If exposed to stress above these limits, function and performance may degrade in an unspecified manner. Fundamental Circuit Diagram Primary Secondary + In + Out + Sense Primary Driver Secondary Driver - Sense - Out Bias supply RC - In Isolated Feedback Control and Supervision Vadj Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 2 (5) No. EJUNGYA Approved Checked PKB 4717 PINB SEC/D (LINDA ZHONG) 5 2/1301-BMR 636Technical 01/A4 Uen Specification Date Rev Reference EN/LZT 146 382 R1A June 2007 2007-5-15 A DC/DC converters, Input 36-75 V, Output 10.5 A/75 W (c) Ericsson Power Modules AB 7.2 V/10.5 A Electrical Specification PKB 4717 PINB Tref = -40 to +90C, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions. Typical values given at: Tref = +25C, VI= 53 VI max IO, unless otherwise specified under Conditions. Characteristics Conditions min VI Input voltage range VIoff Turn-off input voltage Decreasing input voltage 30 VIon Turn-on input voltage Increasing input voltage 32 CI Internal input capacitance PO Output power Output voltage initial setting SVR Supply voltage rejection (ac) f = 100 Hz sinewave, 1 Vp-p typ 36 max Unit 75 V 31 35 V 34 36 0 75 66 50 % of max IO 91.7 max IO 90.7 50 % of max IO, VI = 48 V 92.0 max IO, VI = 48 V 90.7 V F 3 W dB Efficiency Pd Power Dissipation max IO 7.8 Pli Input idling power IO = 0 A, VI = 53 V 1.7 PRC Input standby power VI = 53 V (turned off with RC) 0.15 W fs Switching frequency 0-100 % of max IO (see Note 1) 200 kHz VOi VO Output voltage initial setting and Tref = +25C, VI = 53 V, IO = 10.5 A accuracy See operating information (see Note Output adjust range 2) 7.35 V 8 V 6.98 7.42 V IO = 0 A 7.05 7.35 V Line regulation max IO 2 4 mv Load regulation VI = 53 V, 0-100 % of max IO 2 4 mv Load transient recovery time tRC W 10-100 % of max IO ttr tf 6 W Idling voltage Vtr ts 7.2 9.8 Output voltage tolerance band Load transient voltage deviation tr 7.05 % VI = 53 V, Load step 25-75-25 % of max IO, di/dt = 1 A/s Ramp-up time (from 10-90 % of VOi) Start-up time 330 mv 100 s 6.5 11.6 ms 9.8 23.5 ms 10-100 % of max IO (from VI connection to 90 % of VOi) VI shut-down fall time max IO IO = 0 A 0.2 2.6 ms (from VI off to 10 % of VO) RC start-up time max IO 8 ms RC shut-down fall time max IO 0.2 ms (from RC off to 10 % of VO) IO = 0 A 2.6 s s IO Output current Ilim Current limit threshold Tref < max Tref 14 A Isc Short circuit current Tref = 25C 16 A VOac Output ripple & noise OVP Over voltage protection 0 See ripple & noise section, max IO, VOi Tref = +25C, VI = 53 V, 0-100 % of max IO Note 1: Frequency may be adjusted with RT-pin. See Operating Information section. Note 2: When input voltage is 36 V and output is trimmed up to 8V, output current can only be 20%~50% Max Io. 10.5 50 10 A 120 mVp-p 11 V Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 3 (5) No. EJUNGYA Approved PKB 4717 PINB SEC/D (LINDA ZHONG) 6 2/1301-BMR 636Technical 01/A4 Uen Specification Checked Date Rev Reference EN/LZT 146 382 R1A June 2007 2007-5-15 A DC/DC converters, Input 36-75 V, Output 10.5 A/75 W (c) Ericsson Power Modules AB 7.2 V/10.5 A Typical Characteristics PKB 4717 PINB Efficiency Power Dissipation [%] [W] 10 95 8 90 36 V 85 48 V 53 V 80 75 V 6 36 V 48 V 4 53 V 2 75 V 75 0 70 0 0 2 4 6 8 10 2 4 6 8 10 12 [A] 12 [A] Dissipated power vs. load current and input voltage at Tref = +25C Efficiency vs. load current and input voltage at Tref = +25C Output Current Derating Thermal Resistance [A] 12 [C/W] 10 3.0 m/s 10 8 2.5 m/s 8 2.0 m/s 6 4 2 6 1.5 m/s 4 1.0 m/s 2 Nat. Conv. 0 0 0.0 0 20 40 60 0.5 1.0 1.5 2.0 2.5 3.0[m/s] 100 [C] 80 Available load current vs. ambient air temperature and airflow at VI = 53 V. See Thermal Consideration section. Output Characteristics Thermal resistance vs. airspeed measured at the converter. Tested in wind tunnel with airflow and test conditions as per the Thermal consideration section. Current Limit Characteristics [V] [V] 7.30 8.00 7.25 6.00 36 V 48 V 7.20 36 V 48 V 4.00 53 V 53 V 75 V 7.15 7.10 75 V 2.00 0.00 0 2 4 6 8 10 Output voltage vs. load current at Tref = +25C 12 [A] 5 8 11 14 17 [A] Output voltage vs. load current at IO > max IO , Tref = +25C Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EJUNGYA Approved Checked PKB 4717 PINB SEC/D (LINDA ZHONG) 2/1301-BMR 636Technical 01/A4 Uen Specification Date 2007-5-15 DC/DC converters, Input 36-75 V, Output 10.5 A/75 W Rev Start-up EN/LZT 146 382 R1A June 2007 A (c) Ericsson Power Modules AB PKB 4717 PINB Shut-down Top trace: output voltage (2V/div.). Bottom trace: input voltage (20V/div.). Time scale: (5ms/div.). Output Ripple & Noise Output voltage ripple at: Tref = +25C, VI = 53 V, IO = 10.5 A resistive load. 7 Reference 7.2 V/10.5 A Typical Characteristics Start-up enabled by connecting VI at: Tref = +25C, VI = 53 V, IO = 10.5 A resistive load. 4 (5) No. Shut-down enabled by disconnecting VI at: Tref = +25C, VI = 53 V, IO = 10.5 A resistive load. Top trace: output voltage (2V/div.). Bottom trace: input voltage (50V/div.). Time scale: (0.1ms/div.). Output Load Transient Response Trace: output voltage (20mV/div.). Time scale: (2s/div.). Output voltage response to load current step- Top trace: output voltage (200mV/div.). change (2.5-7.5-2.5 A) at: Bottom trace: load current (5A/div.). Tref =+25C, VI = 53 V. Time scale: (0.1ms/div.). Output Voltage Adjust (see operating information) Passive adjust The resistor value for an adjusted output voltage is calculated by using the following equations: Active adjust The output voltage may be adjusted using a voltage applied to the Vadj pin. This voltage is calculated by using the following equations: Output Voltage Adjust Upwards, Increase: k 5.11x 7.2(Vout - 1.225) Radj = - 10.22 1.225 x Vout - 1.225 x 7.2 Vdesired- 7.2 V Vadj = 1.225+ 2.45x 7.2 Output Voltage Adjust Downwards, Decrease: Example: Upwards => 7.85 V 5 .11 x (2V out - 7.2 ) k Radj = 7.2 - V out Example: Upwards =>Vout = 7.85 Vdc 5 . 11 x 7 . 2 (7 . 85 - 1 . 225 ) - 10 . 22 k = 296 k 1 . 225 x 7 . 85 - 1 . 225 x 7 . 2 7.85 - 7.2 1.225 + 2.45 x V = 1.45 V 7.2 Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) 1 (5) No. EJUNGYA Approved PKB 4717 SEC/D (Julia PINB You) 3/1301-BMR 636Technical 01/A4 Uen Specification Checked Date ECHWANG 2007-6-18 DC/DC converters, Input 36-75 V, Output 10.5 A/75 W Rev 8 Reference EN/LZT 146 382 R1A June 2007 A (c) Ericsson Power Modules AB EMC Specification Conducted EMI measured according to EN55022, CISPR 22 and FCC part 15J (see test set-up). See Design Note 009 for further information. The fundamental switching frequency is 200 kHz for PKB 4717 PINB @ VI = 53 V, max IO. Conducted EMI Input terminal value (typ) Test set-up Layout recommendation EMI without filter External filter (class B) Required external input filter in order to meet class B in EN 55022, CISPR 22 and FCC part 15J. The radiated EMI performance of the DC/DC converter will depend on the PCB layout and ground layer design. It is also important to consider the stand-off of the DC/DC converter. If a ground layer is used, it should be connected to the output of the DC/DC converter and the equipment ground or chassis. A ground layer will increase the stray capacitance in the PCB and improve the high frequency EMC performance. Filter components: C1,2,6 = 1 F/100 V Ceramic C3, 4 = 2.2 nF/1500 V Ceramic Output ripple and noise Output ripple and noise measured according to figure below. See Design Note 022 for detailed information. C5 = 100 F/100 V Electrolytic L1,L2 = 1.47 mH 2.8 A, Common Mode Output ripple and noise test setup EMI with filter Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EJUNGYA Approved PKB 4717 SEC/D (Julia PINB You) 2 (5) No. 3/1301-BMR 636Technical 01/A4 Uen Specification Checked Date ECHWANG 2007-6-18 DC/DC converters, Input 36-75 V, Output 10.5 A/75 W Operating information Input Voltage The input voltage range 36 to 75Vdc meets the requirements {of the European Telecom Standard ETS 300 132-2 for normal input voltage range in --48 and --60 Vdc systems, -40.5 to -57.0 V and --50.0 to -72 V respectively. At input voltages exceeding 75 V, the power loss will be higher than at normal input voltage and Tref must be limited to absolute max +110C. The absolute maximum continuous input voltage is 80 Vdc. Turn-off Input Voltage The DC/DC converters monitor the input voltage and will turn on and turn off at predetermined levels. The minimum hysteresis between turn on and turn off input voltage is 1V. Remote Control (RC) The products are fitted with a remote control function referenced to the primary negative input connection (- In), with negative logic option available. The RC function allows the converter to be turned on/off by an external device like a semiconductor or mechanical switch. The RC pin has an internal pull up resistor to + In. The maximum required sink current is 1 mA. When the RC pin is left open, the voltage generated on the RC pin is 12 -- 15 V. See Design Note 021 for detailed information. Input and Output Impedance The impedance of both the input source and the load will interact with the impedance of the DC/DC converter. It is important that the input source has low characteristic impedance. The converters are designed for stable operation without external capacitors connected to the input or output. The performance in some applications can be enhanced by addition of external capacitance as described under External Decoupling Capacitors. If the input voltage source contains significant inductance, the addition of a 100 F capacitor across the input of the converter will ensure stable operation. The capacitor is not required when powering the DC/DC converter from an input source with an inductance below 10 H. External Decoupling Capacitors When powering loads with significant dynamic current requirements, the voltage regulation at the point of load can be improved by addition of decoupling capacitors at the load. The most effective technique is to locate low ESR ceramic and electrolytic capacitors as close to the load as possible, using several parallel capacitors to lower the effective ESR. Rev 9 Reference EN/LZT 146 382 R1A June 2007 A (c) Ericsson Power Modules AB The ceramic capacitors will handle high-frequency dynamic load changes while the electrolytic capacitors are used to handle low frequency dynamic load changes. Ceramic capacitors will also reduce any high frequency noise at the load. It is equally important to use low resistance and low inductance PCB layouts and cabling. External decoupling capacitors will become part of the control loop of the DC/DC converter and may affect the stability margins. As a "rule of thumb", 100 F/A of output current can be added without any additional analysis. The ESR of the capacitors is a very important parameter. Power Modules guarantee stable operation with a verified ESR value of >10 m across the output connections. For further information please contact your local Ericsson Power Modules representative. Output Voltage Adjust (Vadj) The DC/DC converters have an Output Voltage Adjust pin (Vadj). This pin can be used to adjust the output voltage above or below Output voltage initial setting. When increasing the output voltage, the voltage at the output pins (including any remote sense compensation ) must be kept below the threshold of the over voltage protection, (OVP) to prevent the converter from shutting down. At increased output voltages the maximum power rating of the converter remains the same, and the max output current must be decreased correspondingly. To increase the voltage the resistor should be connected between the Vadj pin and +Sense pin. The resistor value of the Output voltage adjust function is according to information given under the Output section for the respective product. To decrease the output voltage, the resistor should be connected between the Vadj pin and --Sense pin. Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EJUNGYA Approved PKB 4717 SEC/D (Julia PINB You) 3 (5) No. 3/1301-BMR 636Technical 01/A4 Uen Specification Checked Date ECHWANG 2007-6-18 Rev EN/LZT 146 382 R1A June 2007 A DC/DC converters, Input 36-75 V, Output 10.5 A/75 W Operating information continued Remote Sense The DC/DC converters have remote sense that can be used to compensate for voltage drops between the output and the point of load. The sense traces should be located close to the PCB ground layer to reduce noise susceptibility. The remote sense circuitry will compensate for up to 10% voltage drop between output pins and the point of load. If the remote sense is not needed +Sense should be connected to +Out and -Sense should be connected to -Out. Over Temperature Protection (OTP) The converters are protected from thermal overload by an internal over temperature shutdown function of the control IC. When Tref as defined in thermal consideration section exceeds 120C the converter will shut down. The DC/DC converter will make continuous attempts to start up (nonlatching mode) and resume normal operation automatically when the temperature has dropped >10C below the temperature threshold. Over Voltage Protection (OVP) The converters have output over voltage protection that will shut down the converter in over voltage conditions. The converter will make continuous attempts to start up (nonlatching mode) and resume normal operation automatically after removal of the over voltage condition. Over Current Protection (OCP) The converters include current limiting circuitry for protection at continuous overload. The output voltage will decrease towards zero for output currents in excess of max output current (max IO). The converter will resume normal operation after removal of the overload. The load distribution should be designed for the maximum output short circuit current specified. Thermal Consideration General The converters are designed to operate in different thermal environments and sufficient cooling must be provided to ensure reliable operation. Cooling is achieved mainly by conduction, from the pins to the host board, and convection, which is dependant on the airflow across the converter. Increased airflow enhances the cooling of the converter. The Output Current Derating graph found in the Output section for each model provides the available output current vs. ambient air temperature and air velocity at Vin = 53 V. The DC/DC converter is tested on a 254 x 254 mm, 35 m (1 oz), 16-layer test board mounted vertically in a wind 10 Reference (c) Ericsson Power Modules AB tunnel with a cross-section of 305 x 305 mm. Proper cooling of the DC/DC converter can be verified by measuring the temperature at positions P1, P2 and P3. The temperature at these positions should not exceed the max values provided in the table below. Note that the max value is the absolute maximum rating (non destruction) and that the electrical Output data is guaranteed up to Tref +90C. See Design Note 019 for further information. Position Device Designation max value P1 Pcb Tref 110 C P2 Mosfet Tref 120 C P3 Mosfet Tref 120 C Ericsson Internal PRODUCT SPECIFICATION E Prepared (also subject responsible if other) EJUNGYA Approved PKB 4717 SEC/D (Julia PINB You) 4 (5) No. 3/1301-BMR 636Technical 01/A4 Uen Specification Checked Date ECHWANG 2007-6-18 Rev EN/LZT 146 382 R1A June 2007 A DC/DC converters, Input 36-75 V, Output 10.5 A/75 W Thermal Consideration continued Reference (c) Ericsson Power Modules AB Connections Definition of reference temperature (Tref) The reference temperature is used to monitor the temperature limits of the product. Temperatures above maximum Tref are not allowed and may cause degradation or permanent damage to the product. Tref is also used to define the temperature range for normal operating conditions. Tref is defined by the design and used to guarantee safety margins, proper operation and high reliability of the module. Ambient Temperature Calculation By using the thermal resistance the maximum allowed ambient temperature can be calculated. 1. The power loss is calculated by using the formula ((1/) - 1) x output power = power losses (Pd). = efficiency of converter. E.g 89.5 % = 0.895 Pin 1 Designation +In Function Positive input 2 RC Remote control 2. Find the thermal resistance (Rth) in the Thermal Resistance graph found in the Output section for each model. Calculate the temperature increase (T). T = Rth x Pd 3 -In Negative input 4 -Out Negative output 5 -Sen Negative remote sense 6 Vadj Output voltage adjust 7 +Sen Positive remote sense 8 +Out Positive output 3. Max allowed ambient temperature is: Max Tref - T. E.g PKB 4717 PINB at 1m/s with full load: 1. (( 1 ) - 1) x 75 W = 8.79 W 0.895 2. 8.79 W x 6.0C/W = 53C 3. 110 C - 53C = max ambient temperature is 57C The actual temperature will be dependent on several factors such as the PCB size, number of layers and direction of airflow. 11 Ericsson Internal PRODUCT SPEC. MECHANICAL E Prepared (also subject responsible if other) EPANHON Approved PKB 4717 SEC/D (Julia PINB You) Checked See 1 4/1301-BMR636 Technical Uen Specification Date 2007-04-29 DC/DC converters, Input 36-75 V, Output 10.5 A/75 W Mechanical Information 1 (2) No. Rev Reference EN/LZT 146 382 R1A June 2007 A (c) Ericsson Power Modules AB 12 Ericsson Internal PROD. SPECIFICATION MECHANICAL E Prepared (also subject responsible if other) EPANHON Approved PKB 4717 SEC/D (LindaPINB Zhong) 1 (3) No. Checked See 1 5/1301-BMR636 Technical Uen Specification Date 2006-11-17 DC/DC converters, Input 36-75 V, Output 10.5 A/75 W Soldering Information No-clean flux is recommended to avoid entrapment of cleaning fluids in cavities inside the product or between the product and the host board. The cleaning residues may affect long time reliability and isolation voltage. Delivery Package Information The products are delivered in antistatic clamshell. Clamshell Specifications Material PET with antistatic coated Surface resistance 106 < Ohm/square < 1012 Bake ability The clamshells are not bakeable. Clamshell capacity 20 products/clamshell Clamshell thickness 20 mm [0.787 inch] Box capacity 100 products (5 full trays/box) Clamshell weight 130 g empty, 530 g full tray Rev Reference EN/LZT 146 382 R1A June 2007 A (c) Ericsson Power Modules AB 13 Ericsson Internal PROD. SPECIFICATION MECHANICAL E Prepared (also subject responsible if other) 2 (3) No. EPANHON Approved Checked PKB 4717 SEC/D (LindaPINB Zhong) See 1 5/1301-BMR636 Technical Uen Specification Date 2006-11-17 DC/DC converters, Input 36-75 V, Output 10.5 A/75 W Rev 14 Reference EN/LZT 146 382 R1A June 2007 A (c) Ericsson Power Modules AB Product Qualification Specification Characteristics External visual inspection IPC-A-610 Dry heat IEC 60068-2-2 Bd Temperature Duration +125 C 1000 h Cold (in operation) IEC 60068-2-1 Ad Temperature TA Duration -45C 72 h Damp heat IEC 60068-2-67 Cy Temperature Humidity Duration +85 C 85 % RH 1000 hours Operational life test MIL-STD-202G method 108A Duration 1000 h Change of temperature (Temperature cycling) IEC 60068-2-14 Na Temperature range Number of cycles Dwell/transfer time -40 to +100 C 1000 15 min/0-1 min Vibration, broad band random IEC 60068-2-64 Fh, method 1 Frequency Spectral density Duration 10 to 500 Hz 0.07 g2/Hz 10 min in each 3 perpendicular directions Mechanical shock IEC 60068-2-27 Ea Peak acceleration Duration Pulse shape Directions Number of pulses 100 g 6 ms Half sine 6 18 (3 + 3 in each perpendicular direction) Robustness of terminations IEC 60068-2-21 Test Ua1 Plated through hole mount products All leads Resistance to soldering heat IEC 60068-2-20 Tb Method 1A Solder temperature Duration 270 C 10-13 s Solderability IEC 60068-2-20 test Ta Preconditioning Temperature, SnPb Eutectic Temperature, Pb-free Steam ageing 235 C 260 C Immersion in cleaning solvents IEC 60068-2-45 XA Method 2 Water Glycol ether Isopropanol +55 C +35 C +35 C