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
six step level, the THDi could be tuned very low. The ILED current is also programmed by external resister to fulfill
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
120mA (Max)
Package Type
Dice
MG39134AH
MG39134AT
MG39134AS
e-TSSOP16
e-SOP16
3 Application Field
Incandescent and Fluorescent lamp/tube replacement
MEGAWIN
4
MG39134 Data Sheet
MEGAWIN [ MEGAWIN TECHNOLOGY CO., LTD ]
