Data Sheet 100VAC Input/Constant Current Isolated High-power LED Driver for Illumination BP5843A Absolute Maximum Ratings Dimensions (Unit : mm) V Vpk kV Maximum surface temperature Tcmax 105 °C Operating temperature range Storage temperature range Topr Tstg −20 to +80 −25 to +85 °C °C Conditions 1s (between primary and secondary) Ambient temperature + module self-heating Tcmax Refer to derating curve Typ. 141 350 − − 85 Max. 170 369 12 0.5 − Unit V mA V Vp-p % Conditions 3 4 5 9 10 11 0.75±0.1 1.3±0.2 0.5±0.05 P=2.54±0.2 11.05MAX. 4.75MAX. Derating Curve Derating Curve 5 Vi=141V, R1=0.82Ω (1%) ∗1 Vi=141V, lo=350mA ∗2 Vi=141V, lo=350mA Vi=141V, Vo=12V, lo=350mA Application Circuit 4 3 Operation Range 2 1 0 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Ambient Temperature Ta(°C) Be sure to use fuse for safety 1 3 9 10 11 F1 R1 D1 LF1 C2 + C1 C4 Function Input terminal (+) Skip Input terminal (−) NC NC Skip Skip Skip Output capacitor connection terminal LED connection terminal (cathode) LED connection terminal (anode) Output Current (A) Output Characteristics Pin No. 1 2 3 4 5 6 7 8 9 10 11 BP5843A C3 1 2.54x10=25.4 TYP. ∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curve. ∗2 Spike noise is not included in output ripple voltage. ZNR1 15.8MAX. MARKING SIDE 3.55MAX Electrical Characteristics Symbol Min. Parameter Input voltage range 113 Vi Output current 332 Io Output voltage range Vo 2.5 Output ripple voltage − Vp Power conversion efficiency 80 η 32.6MAX. DC Marking Side Unit 170 12 1.8 24.0MAX. Limits Vi Vo BV 4.0±1.0 Symbol Output Power (W) Parameter Input voltage Output voltage Withstand voltage 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 Output characteristics R1=0.91Ω Operation Range R1= 0 2 4 6 8 10 12 Output Voltage(V) 14 16 C5 Current Setting Setting resistor : R1(Ω) External Component Specifications C1 : Input Capacitor 10µF/250V C2 : Output Capacitor 40µF/25V ceramic capacitor R1 : Output current setting resistor 0.82Ω ±1% 1/4W (lo=350mA) C3, C4: Noise Removal Capacitor Use if necessary Capacitance : 0.1 to 0.22µF Rated voltage : 250V or higher C5 : Noise Removal Capacitor 2200pF (Basic insulation) D1: Diode bridge 800V/1A F1: Fuse A fuse must be used for safety LF1: Line Filter 10mH ZNR1: Varistor A varistor is required to protect against lightning surges and static electricity. www.rohm.com ©2010 ROHM Co., Ltd. All rights reserved. Output current-Setting resistor 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.24 0.26 0.28 0.30 0.32 0.34 0.36 Output current : (A) How to calculate R1 R1=0.13741/(0.91 x lo-0.151) lo : Output current 1/1 2010.01 - Rev.A Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. 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