Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

AT9933LG-GVAO is a variable frequency PWM controller IC,designed to control an LED lamp driver using a low-noise boost-buck topology. It uses patent-pending Hysteretic Current-mode control to regulate both the input and the output currents. This enables superior input surge immunity without the necessity for complex loop compensation.

Features

Constant Current LED Driver

Steps Input Voltage Up or Down

Low Electromagnetic Interference (EMI)

Variable Frequency Operation

Internal 75V Linear Regulator

Input and Output Current Sensing

Input Current Limit

Enable and Pulse-width Modulation (PWM) Dimming

Ambient Temperature Rating of up to 125°C

Applications

LED Lighting Applications

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  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

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  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

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