AP Semiconductor GP8511
The GP8551 is a single stage Buck PFC controller targeting at LED lighting applications. It integrates a 600V MOSFET to decrease physical volume. It adopts the proprietary control architecture to achieve an accurate regulation of LED current, unity power factor, and quasi-resonant valley turn-on high efficiency operation.DESCRIPTION
FEATURES
It integrates open/short LED protection and eliminates the need for opto-coupler, thus minimizing the component count and board. GP8551 is offered in 8-SOP package.●- Built-in 600V Power MOSFET
●- Valley turn-on of the MOSFET to achieve
●low switching losses
●- 0.3V current sense reference voltage
●leads to a lower sense resistance thus
●a lower conduction loss.
●- Low start up current: 12μA typical
●- Short LED and Open LED protection
●- P.F. >0.9 with single-stage conversion.
●- Maximum frequency limit: 200KHz
●- Compact SMD type package: 8-SOP Application
● LED lighting Ordering Information Device GP8511 Marking 8511 Package 8-SOP Rev.2 - 1 - Mar. 2015 Pin Assignment GP8511 Pin
DESCRIPTION
No. Pin Name Pin FunctionDESCRIPTION
1 COMP Feedback Compensation Output 2 ZCS Zero Current Sense Input 3 VCC Power Supply Input 4 CS Current Sense Input 5,6 DRAIN High Voltage Drain Input 7,8 GND Ground Rev.2 - 2 - Mar. 2015 Block Diagram GP8511ABSOLUTE MAXIMUM RATINGS
Sym...