BP5844

Data Sheet 100VAC Input/2.5V-12V (250-360mA) Output Isolated High-power LED Driver for Illumination BP5844 Absolute Maximum Ratings Parameter Input voltage Output voltage (limits) Output voltage (no load) Output current Output control terminal voltage Withstand voltage Maximum surface temperature Operating temperature range Storage temperature range Symbol Vi Vo Vo Io VCTL BV Tcmax Topr Tstg Limits 170 12 12.5 378 12.5 1.8 105 -20 to +80 -25 to +85 Units V V V mA V kV °C °C °C Dimensions (Unit : mm) 33.5MAX. 15.1MAX. MARKING SIDE 4.0±1.0 1 3 4 5 8 9 10 11 0 . 5 ±0 . 1 0.75±0.1 3.9MAX 1 . 3 ±0 . 2 2 . 5 4 ±0 . 2 4.4MAX. 10.7MAX. Electrical Characteristics Parameter Input voltage range Output current Output voltage range Output ripple voltage Conversion efficiency Symbol Vi Io Vo Vp η Min. 113 342 2.5 80 Spec Typ. 141 360 85 Max. 170 378 12 0.5 Units V mA V Vp-p % Conditions ∗1 Vi=141V,R1=0.78Ω Vi=141V,Io=360mA ∗2 Vi=141V,Io=360mA Vi=141V,Vo=12V,Io=360mA 2.54�10=25.4TYP. Derating Curve 5 Output Power (W) 4 3 2 1 0 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Ambient Temperature Ta(°C) Operation Range Derating Curve ∗1 Maximum output current varies depending on ambient temperature. Refer to the derating curve. ∗2 Spike noise is not included in output ripple voltage. Application Circuit Example BP5844 Use a fuse for safety. 1 F1 AC100V 3 8 9 10 11 Output control terminal R1 D1 LF1 + C1 C5 ZNR1 C3 C4 Please verify operation and characteristics in the customer's circuit before actual usage. Ensure that the load current does not exceed the maximum rating. Conversion Efficiency η[%] Pin No. 1 2 3 4,5 6-7 8 9 10 11 Terminal name Input terminal (+) Skip Input terminal (-) N.C Skip Output capacitor connection terminal (-) LED connection terminal (cathode) LED connection terminal (anode) VCTL terminal Output Characteristics 100 90 80 70 60 50 40 30 20 10 0 0.00 CONVERSION EFFICIENCY (Vi=141V, R1=0.78Ω, Ta=25°C) Operation Range External Component Specifications C1 : Input capacitor C2 : Output capacitor R1 : Output current setting resistor C3,C4: Noise reduction capacitor C5: Noise reduction capacitor D1: Diode bridge F1: FUSE LF1: Line filter ZNR1: Varistor Output Voltage Vo[V] 10µF / 250V (general purpose) 47µF / 25V low impedance type 0.78Ω(0.22Ω+0.56Ω)±1% 1/4 (Io=360mA) By changing R1 it is possible to adjust output voltage. Refer the Output Voltage Setting graph at right Use if required adove 125V 0.1 to 0.22µF 2200pF(Products with basic isolation certification) 400V / 1A Use a fuse for safety. 10mH A varistor is required to protect against lightning surges and static electricity. BP5844 1 F1 R1 2.00 4.00 6.00 8.00 10.00 12.00 14.00 Output Voltage Vo[V] Load Regulation 14.0 12.0 10.0 8.0 6.0 4.0 2.0 0.0 0 100 200 300 400 500 Output Current Io[mA] 600 Operation Operation Range LOAD REGULATION (Vi=141V, R1=0.78Ω, Ta=25°C) PWM dimming circuit VoH 9V PWM dimming by using the 11pin VF X n 9V AC100V LF1 ZNR1 C3 C4 D1 + C1 3 8 9 10 11 3 Terminal Reg(5V) IN OUT COM Micro computer 10kΩ Output voltage setting Output current-Setting resistor characteristic 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.24 + C2 C5 PWM signal Phase control dimming circuit PWM dimming is possible by configuring a phase control circuit at the input side. PWM dimming signal In case of using PWM or phase control dimming, please input the PWM signals at the VCTL pin. Parameter LED OFF Voltage PWM Signal H level PWM Signal L level PWM Signal freqency Symbol Min. Spec Typ. Setting resistor : R1(Ω) Max. Units Conditions 0.26 0.28 0.30 0.32 0.34 0.36 VoL 6.5 VCTL(H) 3 VCTL(L) 0 fosc 90 6.9 5 100 7.3 V VoH 9V 10 V 0.5 V 132 kHz ∗3 Output Current(A) How to calculate setting resistor R1 R1=0.13741/(0.91 x lo-0.151) lo : Output current Note) A maximum output current is set to 360mA. Operation beyond this limit are prohibited. ∗3 Flickering may occur due to LED load. Please evaluate with the actual application to determine the frequency. www.rohm.com ©2010 ROHM Co., Ltd. All rights reserved. 1/1 2010.01 - Rev.A MARKING SIDE 24.5MAX. 0.38 Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. 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