MT7930

Features

MT7930 is a single-stage, high power factor, source-side controlled AC-to-DC LED driver chip. Using Maxic Technology's unique technology (patent applied for), only a few peripheral devices are needed to sense the electrical information of the source side, and the LED current can be accurately modulated without the need for optocouplers and secondary-side sensing devices.

MT7930 integrates power factor correction function and works in DCM (discontinuous current mode) and constant off-time mode to achieve very small total harmonic distortion current.

MT7930 also implements various protection functions, including over-current protection (OCP), over-voltage protection (OVP), short-circuit protection (SCP) and over-temperature protection (OTP), to ensure that the system works reliably.

Parameters

. AC85V to AC265V AC input voltage

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

. Up to 50W output drive capability

. Source-side sensing and constant current mechanism, no optocoupler required

. Built-in pulse leading edge blanking

. Cycle-by-cycle peak current control

. Built-in undervoltage lockout protection

. VDD overvoltage protection, output overvoltage protection

. Adjustable constant current output current and output power

. With soft start function

. SOP8 package

Description: External MOS, ultra-low THD

Vin(V):85～264VAC

Maximum driving capability: 80W

Power factor: >0.9

Dimming mode: ON/OFF

Application

Bulb lamp, PAR lamp, fluorescent lamp, panel lamp, projection lamp