GP8634

Optimal Power Design GP8653140 High Power Factor & Accuracy Constant Current LED Driver Description The GP8634 is a highly-integrated, low startup current, average current mode, one cycle control PFC and fixed switching frequency PWM controller. These functions enable the LED driver to easily meet the accuracy average LED current and high power factor requirements. The GP8634 integrates a power MOSFET with 600V breakdown voltage. The integrated functions also include the LED short protection, open protection, and internal over temperature protection. The COMP pin controls the duty by connected an RC compensation network to ground and forming the closed loop feedback control. The GP8634 improves the performance and reduces the cost of the LED driver. Features Integrated 600V MOSFET High Power Factor by One Cycle Control Accuracy Constant Current Low BOM Cost Linear Dimming on DIM Pin Average Current / Fixed Frequency Control Gate Output Voltage Clamp LED Open Protection (OVP) LED Short Protection (SCP) Over Current Protection (OCP) Internal OTP Protection Applications LED Off-line Lamps Others LED Lighting Applications Ordering Information Device GP8634 Marking GP8634 Package 8-DIP 8-DIP Rev.1 - 1 - Mar. 2015 Optimal Power Design Block Diagram GP8653140 Absolute Maximum Ratings Symbol Parameter VCC VIN VDRAIN TJ TA TSTG ΘJA PD Supply Voltage INPUT VOLTAGE (DIM, CS, COMP) DRAIN Voltage Operating Junction Temperature Operating Ambient ...