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ULD5131

Part Number	ULD5131
Manufacturer	UTC
Description	ADAPTIVE 100/120Hz CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER
Published	Apr 21, 2020
Detailed Description	UNISONIC TECHNOLOGIES CO., LTD ULD5131 ADAPTIVE 100/120Hz CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER  DESCRIPTION UTC ...
Datasheet	ULD5131 PDF File

Overview

UNISONIC TECHNOLOGIES CO.
, LTD ULD5131 ADAPTIVE 100/120Hz CURRENT RIPPLE REMOVING CIRCUIT CONTROLLER  DESCRIPTION UTC ULD5131 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 ULD5131 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 volt...

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