Product Page

MT7955

APPLICATION
E14/E27/PAR30/PAR38/GU10 LED lamp
LED lighting application
General purpose constant current source

Product

Description

Vin(V)

Max drive capacity

PFC

Dimming

Package

PDF

MT7955

PSR,Internal 600V
MOS

85~264VAC

15W

>0.5

N/A

DIP8

MT7955

DESCRIPTION
MT7955 is a primary-side controller for AC-DC LED lighting. It operates in constant current control mode and works in discontinuous conduction mode, suitable for flyback converter under universal input.
MT7955 adopts primary side sensing and regulation technology, no secondary side feedback circuit is needed. Further, the loop compensation components are also eliminated while maintaining system stability. With building in 2A / 600V power MOSFET, low component counts and low BOM cost are achieved.
By using Maxic proprietary current regulation method, the MT7955 achieves ±3% accuracy of LED current along with excellent line regulation and load regulation.
MT7955 provides plenty of protections, such as LED short circuit protection, LED open circuit protection, over-temperature protection, VDD over voltage protection, VDD under voltage lock-out, etc.

FEATURES
Build in 2A / 600V power MOSFET
85V to 265V AC line voltage range
Primary side sensing and regulation, no need of secondary side feedback
High precision constant LED current (+/-3%)
Cycle-by-cycle peak current control
LED short-circuit/open circuit protection
VDD under voltage lock-out protection
VDD over voltage protection
Over temperature protection
Built-in leading edge blanking (LEB)
Extremely minimum external components
Available in DIP8 package

Ship Worldwide

On your account or prepay

Money Return

100% Guarentee

Return Policy

30 Days Service

Solution & Support

Call +86-755-8418 2951