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RT8525 Datasheet(PDF) 1 Page - Richco, Inc. |
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RT8525 Datasheet(HTML) 1 Page - Richco, Inc. |
1 / 10 page RT8525 ® DS8525-01 March 2012 www.richtek.com 1 © Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Ordering Information Note : Richtek products are : RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. Boost Controller with Dimming Control Pin Configurations SOP-14 (TOP VIEW) Marking Information RT8525GS : Product Number YMDNN : Date Code General Description The RT8525 is a wide input operating voltage range step up controller. High voltage output and large output current are feasible by using an external N-MOSFET. The RT8525 input operating range is from 4.5V to 29V. The RT8525 is an optimized design for wide output voltage range applications. The output voltage of the RT8525 can be adjusted by the FB pin. The PWMI pin can be used as a digital input, allowing WLED brightness control with a logic-level PWM signal. Features VIN Range : 4.5V to 29V Programmable Soft-Start Time Programmable Boost SW Frequency from 50kHz to 600kHz Output Over Voltage Protection Output Under Voltage Protection 14-Lead SOP Package RoHS Compliant and Halogen Free Applications LCD TV, Monitor Display Backlight LEDDriver Application RT8525 GSYMDNN DRV PGND ISW EN OOVP FB FAULT VDC VIN COMP SS FSW AGND PWMI 2 3 4 5 8 7 6 14 13 12 11 10 9 Typical Application Circuit Package Type S : SOP-14 RT8525 Lead Plating System G : Green (Halogen Free and Pb Free) RS RSLP M1 D1 L1 DRV ISW PGND OOVP FAULT RT8525 VIN VDC CDC EN Chip Enable CC2 RC CC1 RSW CSS FSW SS COMP FB 14 11 13 9 10 2 1 3 5 4 12 8 RFLT AGND 6 PWMI PWMI 7 VIN 12V 33µH 2.4k 50m 100k COVP 0.33µF 56k 33k 27nF CVIN CIN 100µF 1µF 1µF ROVP1 ROVP2 150k 6k RFB1 RFB2 3k 117k COUT VOUT 100µF x 2 50V 24V |
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