Insulation Type AC-DC Converter BP5718A12 AC 100V input, 12 V/1000 mA output Absolute Maximum Ratings Dimensions (mm) Symbol VD VDD ID IDD Po VI Limits 500 25 500 10 13 2.5 Unit V V mA mA W KV Tcmax 105 °C Topr −25 to +80 °C Tstg −40 to +105 °C Conditions 1 sec (between primary and secondary) Ambient temperature + module self-heating Tcmax Line regulation Load regulation Output ripple voltage Power conversion efficiency Min. − Typ. − Max. 350 Unit V Conditions Note 2:Io=1000mA 8.8 11.4 0 12 12.0 − 20 12.6 1000 V V mA DC, Io=1000mA *1 ∆Vr ∆VI ∆γ − − − 5 58 135 200 200 500 mV mV mVpp η 75 83 − % See derating curve Vi=113V to 195VDC Io=1000mA Io=50mA to 1000mA *2 9 + C4 C7 R2 D2 1 D3 1 4 6 7 C2 + F1 C3 Vo1:12V/850mA + 3 R1 D7 GND1 Vo2:18V/100mA D5 5 Terminal name 1 Vo 2 GND 6 Vin(-) 7 VDD C1 + AC100V ZNR Pin No. D1 T1 Vi(+) R5 C6 GND2 Vi(-) C5 Use a fuse for safety 8 7 11 2 1 8 Vs 9 NC 11 VD Terminal function Secondary 12V output voltage control terminal. Insert a 1000µF output smoothing capacitor before the GND for use. Secondary 12V output GND terminal. Primary input negative terminal. Internal circuit power terminal. Start-up terminal. Connect to Vi (+) through an external resistor (1.5MΩ). NC pin. Drain terminal for the buiit-in FET. BP5718A12 Verify proper operation under actual conditions before use. In particular, confirm that the load current does not exceed the maximum rating. 6 Operation Range 6 Switching Frequency *1: The operation starting voltage is between 15.5 and 17.5 V. *2: Pulsating noise is not included. Sample Application Circuit 12 -30-20-10 0 10 20 30 40 50 60 70 80 90 Ambient Temperature Ta(°C) Switching Frequency fsw(kHz) Parameter Symbol Pin 11 input voltage VD Operating power VDD voltage(Pin 7) Rated output voltage Vo Rated output current Io Output Power (W) Derating Curve Electrical Characteristics 100 80 60 40 20 0 0 200 400 600 800 1000 Output Current Io(mA) Conversion Efficiency Conversion Efficiency η (%) Parameter Pin 11 input voltage Pin 7,9 input voltage Pin 11 input Current Pin 8 input Current Output power Withstand voltage Maximum allowable surface temperature Operating temperature range Storage temperature range 100 90 80 70 60 50 40 30 20 10 0 0 500 1000 Output Current Io(mA) External Component Settings C2: C3: C4: C5: C6: C7: D1: D2: 1000µF/35V low-impedance capacitor for power supply Noise Reduction Capacitor 2200pF/400V VDD Capacitor 10µF/50V low-impedance capacitor for power supply Input Capacitor 100µF/250V Noise Reduction Capacitor (optional) Output Capacitor 100µF/35V low-impedance Noise Reduction Capacitor (optional) Rectifier Diode 60V/6A Rectifier Diode 1kV/1A D3: D5: D7: R1: Rectifier Diode Rectifier Diode Diode Bridge Resistor 1 80V/0.1A 100V/1A 800V/1A 100kΩ±5%, 3W, 300VDC or higher ruted voltage R2: Resistor 2 1.5MΩ±5%, 0.25W, 300VDC or higher ruted voltage. R5: Noise Reduction Resistor (optional) T1: Switching Transformer F1: Fuse Use a fuse for safety ZNR: Varistor A varistor is required in order to protect against lightning surges and static electricity. Load Regulation Output Voltage Vo(V) C1: Output Capacitor 14.0 12.0 10.0 8.0 6.0 4.0 2.0 0.0 0 1000 2200 Output Current Io(mA) Operation Notes An excessively large capacitance at C1 may cause the output to become inactive. Therefore, a capacitance between 1000 and 2200µF is recommended, with a rise time of 10ms or less. The capacitance of C3 should be 10µF, since an excessively small value will result in malfunction. The activation time is defined as: t(sec)=R2×C3×ln[1-17/(VI-30µA×R2)], where VI is the DC voltage after smoothing. The resistance of R2 should be 1.5MΩ, since an excessively small value will result in malfunction. Overcurrent (reset type) and overvoltage (latch type) protection circuits are built in, preventing damage from occurring due to unexpected conditions. The overvoltage protection circuit shuts down operation once VDD exceeds 20V. In order to reset the input capacitor C4 must be discharged and the power turned back on. 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