MT7605

Features

MT7605 is a segmented linear constant current LED driver chip, which adopts segmented linear architecture and can automatically switch LED light strings according to segmented LED voltage drop, without external settings, simplifying system design. The system does not require electrolytic capacitors, inductors, or transformers, etc., making the entire system simple and low-cost.

MT7605 can drive up to three series-connected LED strings, and automatically change the number of connected LED strings when the input voltage changes. In the entire AC cycle, the LED is lit for a longer time, thereby increasing the utilization of the LED and improving the power factor, making PFC as high as 0.99 and THD less than 15%.

MT7605 adopts MAXIC's patented average current control and compensation technology, and the current accuracy can be controlled within ±3%. In addition, the current of each LED string can be flexibly set by different sampling resistor values.

Parameters

. Linear segmented constant current LED driver

. Can switch LED light string according to LED voltage drop

. Each LED current can be set individually through external resistors

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

. Support maximum LED peak current: 60mA

. PFC up to 0.99, THD less than 15%

. Over temperature protection

. Power automatically decreases at high temperatures

. Built-in power tube simplifies peripheral devices

. ESOP8 package

Description: Three-stage, integrated MOS

Vin(V)：200～240VAC、100～130VAC

Maximum driving capability: 9W

Power factor: >0.9

Dimming method: N/A

Application

Candle lamp, spotlight, bulb lamp, fluorescent lamp