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Isolated DC/DC Converter
12V/250mA output type
BP5324A
Absolute Maximum Ratings
Parameter Input voltage Maximum output current Operating temperature range Storage temperature range Isolation voltage Symbol VIN Iopeak Topr Tstg VISO Limits 7 250 -25 to +80 -25 to +85 500 Unit V mA C C Vrms
Dimensions (Unit : mm)
38.5Max. 13.6Max.
Mark Side
4.01.0
27.0Max. 12 45 3.25Max. P=2.540.2
8 10 11 12 0.50.1 1.30.2
4.55Max.
0.250.05 9.05Max.
2.54x11=27.94
Electrical Characteristics
Symbol Min. 4.5 VIN Input voltage range 11.4 Vo Output voltage 0 Io Output current - VL Line regulation - VR Load regulation - Vp Output ripple voltage 65 Power conversion efficiency Parameter Typ. 5.0 12.0 - 0.01 0.23 0.03 74 Max. 5.5 12.6 250 0.05 0.5 0.15 - Unit V V mA V V Vpp % Conditions VIN=5V, Io=250mA 1 VIN=5V VIN=4.5 to 5.5V, Io=200mA VIN=5V, Io=0 to 250mA 2 VIN=5V, Io=250mA VIN=5V, Io=250mA 2
Derating Curve
Derating Curve Output Current Io(mA) 300 250 200 150 100 50 0 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Ambient Temperature Ta(C) Operation Range
1 Maximum output current varies depending on ambient temperature ; please refer to derating curve. 2 Please refer to Load regulation, Conversion efficiency.
Conversion Efficiency
Conversion Efficiency (%) Conversion Efficiency (Ta=25C, Vin=5V) 90 80 70 60 50 40 30 20 10 0 0
Application circuit
BP5324A BP5324A
F1 12 45 8 10 11 12 Vo
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 Function Input terminal (5V) Input terminal (5V) Not used Input terminal (0V) Input terminal (0V) Not used Not used Output GND terminal Not used Capacitor connect Output terminal Output terminal
0.05 0.1 0.15 0.2 0.25 0.3 0.35 Output Current Io(A)
VIN
C1 C2 C4
Use a fuse for safety.
C3
Be sure to evaluate it under the condition that it is mounted by your product. Especially, confirm whether output current never exceeds a maximum rating with current probe. External Components Settings F1 : Fuse C1: Input Capacitor C2: Output Capacitor C3: Output Capacitor C4: Noise Reduction Capacitor Use a 2.5A fuse Capacitance : 100F to 220F Rated voltage : 16V or higher . Capacitance : 100F, Rated voltage : 25V or higher. Capacitance : 100F to 470, Rated Voltage : 25V or higher. Capacitance : 4700pF to 0.1F, Rated Voltage : AC500V or higher.
Rev.A
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.1

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