TP8553C datasheet(1/6 Pages) TPOWER

Part #	TP8553C

Description	Three-stage switch dimming non-isolated buck LED constant current driver chip

PDF	6 Pages

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Manufacturer	TPOWER [Shenzhen Tianyuan Semiconductor Co., Ltd.]

Direct Link	http://www.tpower-ic.com/

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TP8553C

三段式开关调光的非隔离降压 LED 恒流驱动芯片

V1.2

Shenzhen TPOWER Semiconductor

1

概述

TP8553C 是一款具有三段式开关调光功能的高效率非隔离

降压 LED 恒流驱动芯片，适用于 85VAC~265VAC 全电压

输入范围的非隔离降压型 LED 调光电源。

TP8553C 集成了三段式开关调光功能。LED 输出电流可以

通过普通开关的开关动作在 100%、50%和 10%之间进行

切换。TP8553C 的调光方式简单方便，只需要普通的开关

而不需要额外的调光器。

TP8553C 内部集成了高精度的电流检测和恒流驱动电路，

能够实现高精度的 LED 恒流输出和出色的线电压调整率。

同时，TP8553C 工作在电感电流临界模式下，具有优异的

负载调整率和对电感量变化不敏感的优点。

TP8553C 内部集成 500V 功率管，并采用源极驱动方式，

芯片的工作电流很低，无需辅助绕组检测和供电，无需任

何补偿元件，只需要很少的外围元件，即可实现高效率的

LED 恒流输出，极大的节约了系统的成本和体积。

TP8553C 工作电压范围宽，适用于 85VAC~265VAC 全电

压范围的交流输入。同时 TP8553C 集成了多种保护功能，

以保证系统的稳定和可靠。包括 LED 开路、短路保护，CS

电阻短路保护，芯片温度智能控制和芯片供电欠压保护等。

特点

 集成三段式开关调光功能

 100%,50%,10%调光亮度

 内部集成 500V 功率管

 电感电流临界模式

 芯片超低工作电流

 无需辅助绕组检测和供电

 宽输入电压

 系统工作效率高

 ±5%LED 输出电流精度

 LED 开路保护

 LED 短路保护

 CS 电阻短路保护

 芯片供电欠压保护

 芯片温度智能控制

 对电感变化不敏感

 自动重启动功能

 系统 BOM 成本低

 采用 SOP8L 封装

应用

 LED 球泡灯，蜡烛灯，玉米灯

 LED 日光灯，PAR 灯

 其它 LED 照明

典型应用电路

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TP8553C Datasheet(PDF) 1 Page - Shenzhen Tianyuan Semiconductor Co., Ltd.

TP8553C Datasheet(HTML) 1 Page - Shenzhen Tianyuan Semiconductor Co., Ltd.

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