CL1221 datasheet(1/6 Pages) CHIPLINK

Part #	CL1221

Description	Primary side control high precision constant current controller

PDF	6 Pages

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Manufacturer	CHIPLINK [CHIPLINK SEMICONDUCTOR]

Direct Link	http://www.chiplink-semi.com

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CL1221_CN

SEMICONDUCTOR

CL1221

原边控制高精度恒流控制器

概述

CL1221是一款性能优异的原边反馈控制器，集成了多种保护功能。CL1221工作在电感电流断

续模式，适用于

85Vac~265Vac输入电压、功率5W以内的隔离LED恒流电源。芯片最大限度地减少

了系统元件数目并采用

SOP8封装，这些使得CL1221能够减小系统所占空间。CL1221具有高精度电

流采样电路，使得输出电流精度达到

±5%以内。同时，CL1221具有LED开路/短路保护，过流保护，

欠压保护等。

特性

◆

±5%LED输出电流精度。

◆ 原边反馈恒流控制。

◆ 无辅助检测

/供电绕组。

◆ 超低工作电流：

250μA（典型值）。

◆ 宽输入电压：

85Vac~265Vac。

◆ 内部集成

650V 功率管。

◆

LED短路/开路保护。

◆ 原边过流保护。

◆ 欠压保护（

UVLO）。

应用范围

◆

GU10 LED射灯

◆

LED球泡灯

◆ 其它

LED照明

封装形式：

CL1221采用SOP8封装。

典型应用

管脚分布图

SOP8

2012-11-27

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CL1221 Datasheet(PDF) 1 Page - CHIPLINK SEMICONDUCTOR

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