AX9300 Datasheet | AXElite

High Power Factor and Accuracy Constant Current LED Driver  GENERAL DESCRIPTION The AX9300 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 integrated functions also include the LED short protection, open protection, and internal over temperature protection. The P pin controls the duty by connected an RC pensation network to ground and forming the closed loop feedback control. To protect the external power MOSFET from being damaged by supply over voltage, the AX9300 OUT pin voltage is clamped to about 15V. The AX9300 improves the performance and reduces the cost of the LED driver. It is a 6-pin SOT-26 package.  Features 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 300m A Driving Capability for OUT Pin  APPLICATION E26/27, T5/T8 LED Lamp Others LED Lighting Applications 1/13 Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.0 May.11, 2012  BLOCK DIAGRAM UVLO Internal Bias & Vref 15V/8V Vref OK All Blocks VCCOVP + 28V 40us debounce VCC OK Over -temperature protection OTP Protection 0.8V OCP + - P V-V + + - Q Driver stage VREF Current Waveform modulation - R S Dimming Function 2/13 Axelite Confidential Materials, do not copy or distribute without written consent. Rev.1.0 May.11, 2012  PIN ASSIGNMENT The package of AX9300 is SOT-23-6L; the pin assignment is given by: Name Description VCC Power supply pin VCC CS 1 6 GND Ground pin The output driver for driving the external OUT MOSFET GND P 5 2...