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

部件名	ULD5121G-AF5-R

功能描述	ADAPTIVE 100/120Hz CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER

PDF	4 Pages

Scroll/Zoom	100%

制造商	UTC [Unisonic Technologies]

网页	http://www.utc-ic.com

标志

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

类似零件编号 - ULD5121G-AF5-R

制造商	部件名	数据表	功能描述
Unisonic Technologies	ULD5131	153Kb / 4P	ADAPTIVE 100/120Hz CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER
	ULD5131G-S08-R	153Kb / 4P	ADAPTIVE 100/120Hz CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER
	ULD5131L-S08-R	153Kb / 4P	ADAPTIVE 100/120Hz CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER
	ULD5132	109Kb / 4P	ADAPTIVE CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER
	ULD5132G-SH2-R	109Kb / 4P	ADAPTIVE CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER

制造商	部件名	数据表	功能描述
Fairchild Semiconductor	FD2004	745Kb / 2P	Adaptive Digital DC-DC Controller with Current Sharing
Intersil Corporation	ZL2004	614Kb / 42P	Adaptive Digital DC-DC Controller with Current Sharing February 18, 2009
Intersil Corporation	ZL2004ALNN-01	229Kb / 7P	Adaptive Digital DC/DC Controller with Current Sharing May 23, 2011
List of Unclassifed Man...	WS9931	416Kb / 6P	LED Ripple Current Elimination Controller
Shenzhen Winsemi Microe...	WS9931	416Kb / 6P	LED Ripple Current Elimination Controller
Renesas Technology Corp	ZL2004-01	409Kb / 8P	Adaptive Digital DC/DC Controller with Current Sharing
Unisonic Technologies	ULD5131	153Kb / 4P	ADAPTIVE 100/120Hz CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER
	ULD5132	109Kb / 4P	ADAPTIVE CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER
	ULD5133	115Kb / 4P	ADAPTIVE CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER
Diodes Incorporated	AL5822	380Kb / 10P	ADAPTIVE 100Hz/120Hz LED CURRENT RIPPLE SUPPRESSOR