SRXA-40AQ1L BEL | Alldatasheet
Document overview
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- PDF pages: 14
Technical content
Features
- Non-Isolated • Low Cost
- High Efficiency • Under Voltage Lockout
- Fixed Frequency • OCP/SCP
- High Power Density • Remote On/Off
- Wide Input • Wide Operating Temperature Range
- Class 1, Category 2, Non-Isolated DC/DC Converter (refer to IPC-9592)
Applications
- Networking
- Computers and peripherals
- Telecommunications
Description
The Bel SRXA-40AQ1L is part of the non-isolated dc/dc converter Power Module series. The modules use a over a wide range of input voltage (Vin = 10.8 - 13.2 Vdc).The efficiency is typically 91% @ 12Vin at full load. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Model Number Active Low Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation S R XA – 40 A Q1 L 1 2 3 4 5 6 7 1---Surface mount 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name 4---Series code 5--- Narrow input range (10.8-13.2V) 6---Output voltage, Quad 7---Enable, active low SRXA-40AQ1L RoHS Compliant Rev.C
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 2 NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Absolute Maximum Ratings Parameter Min Typ Max Unit Notes Continuous non-operating Input Voltage -0.3 - 15 V Remote On/Off -0.3 - 15 V Ambient Temperature -40 - 85 °C Storage Temperature -55 - 125 °C Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may permanently damage the device. Input Specifications Parameter Min Typ Max Unit Notes Operating Input Voltage 10.8 12 13.2 V Input Current (full load) - - 5 A Input Current (no load) - 80 150 mA Remote Off Input Current - 10 - mA Input Reflected Ripple Current (rms) - 10 20 mA Input Reflected Ripple Current (pk-pk) - 50 80 mA Use a 1000uF AL-Cap on the input I2t Inrush Current Transient - - 1 A 2s Turn-on Voltage Threshold - 10.5 - V Turn-off Voltage Threshold - 9.5 - V CAUTION: This converter is not internally fused. An input line fuse must be used in application. Recommend a fast-acting fuse with maximum rating of 8A on system board. Refer to the fuse manufacture’s datasheet for further information. Note: All specifications are typical at 25 °C unless otherwise stated. Output Specifications Parameter Min Typ Max Unit Notes Output Voltage Set Point -2 - 2 % Vo,set Vin=12V, lout=half load Load Regulation - - 1 % Vo,set Line Regulation - - 1 % Vo,set Regulation Over Temperature (-40deg.C-85deg.C) - - 1 % Vo,set Ripple and Noise (pk-pk) Vo=1.23V Vo=2.5V Vo=3.3V Vo=-12V mV mV mV mV Ripple and Noise (rms) Vo=1.23V Vo=2.5V Vo=3.3V Vo=-12V mV mV mV mV 0-20MHz BW, minimum extra output ceramic caps on output
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 3 NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Output Specifications (continued) Parameter Min Typ Max Unit Notes Output Current Range Vo=1.23V Vo=2.5V Vo=3.3V Vo=-12V 1.5 1.5 A A A A Output DC Current Limit1 - 150 - %Iout Short Circuit Surge Transient - 1 3 A 2s Turn on Time - 8 12 mS Overshoot at Turn on - - 5 % Output Capacitance Vo=1.23V Vo=2.5V Vo=3.3V Vo=-12V 330 220 560 470 220 100 uF uF uF uF Transient Response Overshoot - 50 100 mV △V 50%~75% of Max Load Settling Time - - 150 uS Overshoot - 50 100 mV △V 75%~50% of Max Load Settling Time Vo= 1.23V - - 150 uS Overshoot - 50 100 mV △V 50%~75% of Max Load Settling Time - - 150 uS Overshoot - 50 100 mV △V 75%~50% of Max Load Settling Time Vo= 2.5V - - 150 uS Overshoot - 50 100 mV △V 50%~75% of Max Load Settling Time - - 150 uS Overshoot - 50 100 mV △V 75%~50% of Max Load Settling Time Vo= 3.3V - - 150 uS Overshoot - 200 400 mV △V 50%~75% of Max Load Settling Time - - 150 uS Overshoot - 200 400 mV △V 75%~50% of Max Load Settling Time Vo= -12V - - 150 uS di/dt=0.5A/us, Vin=12.0Vdc, Ta=25°C,minimum extra output ceramic caps on output active during -12V output overload but 3.3V, 2.5V and 1.23V don’t be affected operating. 2. All specifications are typical at nominal input, full load at 25°C unless otherwise stated.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 4 NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. General Specifications Parameter Min Typ Max Unit Notes Efficiency - 91 - % Vin=12.0V, full load Switching Frequency - 300 - kHz Weight - 14 - g FIT TBD - Calculated Per Bell Core SR-332 (Io=80%load, Ta = 25 °C, FIT=109/MTBF) Dimensions Inches (L × W × H) Millimeters (L × W × H) 1.77 x 0.90 x 0.49 45.00 x 22.86 x 12.39 Note: All specifications are typical at 25 °C unless otherwise stated. Efficiency Data SRXA-40AQ1L 70.0% 75.0% 80.0% 85.0% 90.0% 10% load 25% load 50% load 75% load full load output current efficiency 10.8V 12V 13.2V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 5 NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Thermal Derating Curves The thermal reference point is shown above. For reliable operation this temperature should not exceed 110°C. The output power of the module should not exceed the rated power for the module. Derating curve under normal input Maximum junction temperature of semiconductors derated to 120 degree C.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 6 NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Ripple and Noise Waveform Transient Response Waveforms 3.3Vout 50%-75%load 0.5A/us 3.3Vout 75%-50%load 0.5A/us
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 7 NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Transient Response Waveforms (continued) 2.5Vout 50%-75%load 0.5A/us 2.5Vout 75%-50%load 0.5A/us 1.23Vout 50%-75%load 0.5A/us 1.23Vout 75%-50%load 0.5A/us -12Vout 50%-75%load 0.5A/us -12Vout 75%-50%load 0.5A/us
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 8 NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Startup & Shutdown Rise time Startup time Startup from on/off Startup from on/off Ch1,Ch2,Ch4: 1.23Vout,2.5Vout,3.3Vout Ch4: -12Vout CH3: on/off contreller Ch3: on/off contreller Vin=12V, full load output Vin=12V, full load output Shutdown Test Condition: Vin=12V, full load output Test Condition: Vin=12V, full load output
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 9 NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Remote On/Off Parameter Min Typ Max Unit Notes Signal Low (Unit On) -0.3 - 1 V Signal High (Unit Off) Active Low 2.5 - Vin V The remote on/off pin open, Unit off. Current Sink 0 - 1 mA Recommended remote on/off circuit for active low Control with open collector/drain circuit Control with photocoupler circuit Control with logic circuit Permanently on Input Under-voltage Lockout Input Voltage (V) Input Current Voltage Falling Voltage Rising V1 V2 Under-voltage Lockout V1=9.5V V2=10.5V Vin+ Vin- On/ off Vin+ Vin- On/off Vin+ Vin- On/off Vcc Vi n+ Vi n- On/off
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Power Sequence T1F-T0<12mS T4F-T0<5mS T1S-T3S<10mS Max(T3F,T2F,T1F)-T3S<10mS Max[(T3F-T3S),(T2F-T2S),(T1F-T1S)]<5mS Min[3.3V/(T3F-T3S),2.5V/(T2F-T2S),1.2V/(T1F-T1S),]<100mV/us 3.3Vout(t)>2.5Vout(t)>1.2Vout(t),when t>T3S T4S T1F T2F T3F T2S T1ST3S T4F Vin>=10.8V On/off Signal high low 2.5Vout 3.3Vout 1.2Vout -12Vout
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Fundamental Circuit Diagram Controller Vin+ On/off GND 3.3Vout 2.5Vout 1.2Vout -12Vout GND Choke Capacitor Resistor Controller
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Layout Layout of components on top side Layout of components on bottom side
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Mechanical Outline Note: This module is recommended and compatible with Pb-Free Reflow Soldering and must be soldered using a reflow profile with a peak temperature of no more than 260 ºC for less than 5 seconds. Note: 1) All Pins: Material - Copper Alloy; Finish – 3 micro inches minimum Gold over 50 micro inches minimum Nickel plate. 2) Undimensioned components are shown for visual reference only. Pin Function Pin Function
1 Vin 6 GND
2 ON/OFF 7 1.23Vout 3 GND 8 2.5Vout 4 -12Vout 9 3.3Vout
5 GND
©2009 Bel Fuse Inc. Specifications subject to change without notice. 092209 CORPORATE FAR EAST EUROPE Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Europe Ltd.
206 Van Vorst Street 8F/ 8 Luk Hop Street Preston Technology Management Centre
Jersey City, NJ 07302 San Po Kong Marsh Lane, Suite G7, Preston Tel 201-432-0463 Kowloon, Hong Kong Lancashire, PR1 8UD, U.K. Fax 201-432-9542 Tel 852-2328-5515 Tel 44-1772-556601 www.belfuse.com Fax 852-2352-3706 Fax 44-1772-888366 www.belfuse.com www.belfuse.com NON-ISOLATED DC/DC CONVERTERS Sep. 22, 2009 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Revision History
Date Revision Changes Detail Approval 2009-04-16 A First release HL Lu 2009-07-20 B 1. Input specs: Update no load current and remote off current, ripple current (pk-pk), turn on/off voltage; 2. Output specs: Update load/line regulation, ripple and noise, transient response, turn on time, output cap, weight, add note for OCP; 3. Add efficiency curve, thermal derating, NR, TR, startup & shutdown; 4. Update remote on/off, UVLO, SEQ, MD HL Lu 2009-09-22 C 1. Modify output voltage 2. Update efficiency data and MD 3. Add SCH and Layout HL Lu RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products.