The M8836 constant current driver chip works in the inductor current critical continuous mode and is suitable for non-isolated step-down LED constant current power supplies with a full range of input voltages from 85Vac to 265Vac. The M8836 chip integrates a 500V power switch and adopts patented driving and current detection methods. The chip's operating current is extremely low and does not require auxiliary winding detection and power supply. It only requires a few peripheral components to achieve excellent constant current characteristics, which greatly This saves system cost and volume.
The M8836 chip has a high-precision current sampling circuit and uses patented constant current control technology to achieve high-precision LED constant current output and excellent line voltage regulation. The chip works in the inductor current critical mode, and the output current does not change with changes in the inductance and LED operating voltage, achieving excellent load regulation.
Advantages:
①Simple peripheral components, high VDD undervoltage lockout to prevent flashback
②Low startup current, high efficiency
③High constant current accuracy and wide output voltage range
④OVP protection voltage is accurate and reliable