Datasheet > ULD5121

ULD5121

更新时间： 2024-11-06 01:12:35

品牌	Logo	应用领域
友顺 - UTC		/
页数	文件大小	规格书
4页	162K
描述
ADAPTIVE 100/120Hz CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER

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ULD5121 数据手册

UNISONIC TECHNOLOGIES CO., LTD

ULD5121

Preliminary

CMOS IC

ADAPTIVE 100/120Hz

CURRENT RIPPLE REMOVING

CIRCUIT CONTROLLER



DESCRIPTION

UTC ULD5121 is a controller, which drives external NMOSFET

to remove the 100/120Hz LED current ripple on AC/DC power by a

capacitor between VC and GND. The chip ensures minimum power

dissipation on NMOSFET while removing LED current ripple relying

on the adaptive technology.

UTC ULD5121 allows user to setup the maximum cathode

voltage of LED string by sensing the drain voltage of NMOSFET

which could help limit the power dissipation on chip.



FEATURES

* Controller for adaptive 100/120Hz current ripple remover

* Amplitude of LED current ripple programming

* Maximum cathode voltage of LED programming

* Maximum LED current programming



ORDERING INFORMATION

Ordering Number

Package

SOT-25

Packing

Tape Reel

Lead Free

Halogen Free

ULD5121G-AF5-R

ULD5121L-AF5-R



MARKING

www.unisonic.com.tw

1 of 4

QW-R125-073.a

12 3 4

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ULD5133L-AE3-R	UTC	获取价格	ADAPTIVE CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER