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MG39134 Data Sheet

MEGAWIN

1 Description

The MG39134 is a high precision linear LED controller. It is designed to drive a 6

‐taps low power LED string

directly form AC line input. Electrolytic capacitor is not required; so long operating life is possible. No EMI filter

and PF correction circuits are needed.

The LED string is configured into 6 segments. With state

‐of‐art control scheme, each segment is sequentially

turned on and off by tracking the input sine wave voltage. Voltage applied on IC is minimized when conducting,

providing high efficiency. The AC voltage and line

‐input current could be tuned in phase, so the high PF is

possible. There is no PWM switching control in the chip, also the line

‐in current is tracking with the AC input with

various types of power requirement. The maximum supported wattage is 19.5W.

The MG39134 also builds in UVLO control, over temperature and over voltage protection circuit. The device is

available in e-TSSOP16, e-SOP16 package or dice form.

The MG39134 provides a 7V DC output voltage for the MCU power supply application

2 Order Information

Current

Package Type

120mA (Max)

Dice

MG39134AH

e-TSSOP16

MG39134AT

e-SOP16

MG39134AS

3 Application Field

Incandescent and Fluorescent lamp/tube replacement