ULD5121G-AF5-R datasheet(1/4 Pages) UTC

Il numero della parte	ULD5121G-AF5-R

Spiegazioni elettronici	ADAPTIVE 100/120Hz CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER

PDF	4 Pages

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Produttore elettronici	UTC [Unisonic Technologies]

Homepage	http://www.utc-ic.com

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1 / 4 page

UNISONIC TECHNOLOGIES CO., LTD

ULD5121

Preliminary

CMOS IC

www.unisonic.com.tw

1 of 4

QW-R125-073.a

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

Lead Free

Halogen Free

Package

Packing

ULD5121L-AF5-R

ULD5121G-AF5-R

SOT-25

Tape Reel



MARKING

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