TP8302 datasheet(1/6 Pages) TPOWER

Part #	TP8302

Description	High power factor primary feedback LED driver chip with integrated power tube

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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TP8302

集成功率管的高功率因数原边反馈 LED 驱动芯片

V1.1

Shenzhen TPOWER Semiconductor

1

概述

TP8302是一款集成功率管的高功率因数原边反馈LED恒流

驱动芯片。芯片集成了单级有源功率因数校正电路，特别

适合于85VAC~265VAC全电压输入范围的高性能隔离式

LED照明系统应用。

TP8302集成了单级有源功率因数校正电路，系统可以实现

很高的功率因数和很低的输入电流总谐波失真。TP8302工

作在准谐振开关模式，功率管处于零电流状态导通。这有

效地减小了功率管的开关损耗，提高了系统效率，同时也

改善了系统的EMI特性。

TP8302采用原边反馈的控制方式，通过原边反馈的信息即

可以实现高精度的LED恒流输出。同时，TP8302集成了

650V功率管，这精简了外围元件，节约了系统的成本和体

积，简化了LED照明系统的设计。TP8302集成了线电压和

负载补偿功能，系统具有优异的线电压和负载调整率。

TP8302工作电压范围宽，适用于85VAC~265VAC全电压

范围的交流输入。同时TP8302集成了多种保护功能以保证

系统的稳定和可靠。包括VCC供电过压保护，VCC供电欠

压保护，LED开路、短路保护，芯片过温保护和变压器初级

绕组逐周期限流等。

特点

 内部集成 650V 功率管

 内置单级有源 PFC 功能

 输入电流总谐波失真低

 原边反馈恒流控制，无需次级反馈电路

 准谐振开关模式，开关损耗小

 ±3%的 LED 输出电流精度

 优异的线电压调整率和负载调整率

 超低启动电流

 LED 输出开路保护

 LED 输出短路保护

 VCC 供电过压保护

 VCC 供电欠压保护

 CS 逐周期限流

 自动重启动功能

 芯片过温保护

 采用 SOP7L 封装

应用

 LED 球泡灯，LED 射灯

 E17/E27 LED 蜡烛灯

 其它 LED 照明

典型应用电路

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TP8302 Datasheet(PDF) 1 Page - Shenzhen Tianyuan Semiconductor Co., Ltd.

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