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RT8474A Datasheet(PDF) 6 Page - Richtek Technology Corporation |
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RT8474A Datasheet(HTML) 6 Page - Richtek Technology Corporation |
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6 / 13 page  RT8474A 6 DS8474A-05 April 2015 www.richtek.com © Copyright 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Typical Application Circuit Boost Configuration Buck Configuration RT8474A ISN VCC VIN 1 CREG VC R1 10k 5 8 GND SW ISP Analog Dimming or PWM Dimming CTL 6 2 7 3 9 (Exposed Pad) RSENSE C2 C3 C1 3.3nF 1µF L1 D1 4.5V to 50V 100mV R2 5.1M C5 1µF R5 10 R4 (Short Option) R5 (Short Option) Note : VIN, VSW, VISP, VISN < 50V OVP 4 R3 R4 C4 RT8474A ISN VCC VIN 1 CREG VC R3 10k 5 8 GND SW ISP Analog Dimming or PWM Dimming CTL 6 2 7 3 9 (Exposed Pad) C5 C2 C1 3.3nF 1µF D1 C3 1µF R2 10 10µF L1 22µH C4 1µF R1 0.1 51R VZ > VLED Note : 1. VIN, VSW, VISP, VISN < 50V 2. VLED : the voltage across the LED string 3. Vz : Zener diode breakdown voltage 20R VZ VLED 50V (MAX) OVP 4 |
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Similar Description - RT8474A |
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