MT7834A

Features

MT7834A is a high power factor, non-isolated LED driver chip. It uses floating ground, high-end detection, and buck switching power supply architecture to achieve full-cycle detection, with excellent linear regulation and load regulation. MT7834A works in quasi-resonant mode, which improves efficiency and anti-electromagnetic interference performance.

MT7834A integrates multiple protection functions, such as overvoltage protection, overcurrent protection, overtemperature protection, etc., which improves reliability, and all protections have self-recovery functions. Built-in 550V high-voltage switch simplifies peripheral circuits.

Utilizing MAXIC's unique technology, the driving capability of MT7834A is independent of the chip supply voltage, which can greatly improve the system's anti-electromagnetic interference performance.

Parameters

. Active power factor correction (power factor>0.9)

. High precision LED output current (+/-3%)

. Excellent line regulation and load regulation (+/-2%)

. Quasi-resonant operation mode

. Multiple protection mechanisms

. Soft start function

. Support single winding inductor power supply

. SOP8 package

Description: Built-in 550V MOS

Vin(V):85～264VAC

Maximum driving capability: 300mA

Power factor: >0.9

Dimming method: N/A

Application

Spotlights, bulbs, fluorescent lamps, PAR lamps