TP8302 / Shenzhen Tianyuan Semiconductor Co., Ltd.

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Part No.	TP8302
Manufacturer	TPOWER
Size	604 Kbytes
Pages	6 pages
Description	High power factor primary feedback LED driver chip with integrated power tube

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# TP8302 LED Driver Chip

## Overview
TP8302 is an integrated, high-power-factor, primary-side feedback LED driving chip. It is suitable for high-performance, isolated LED lighting systems with a wide input voltage range (85VAC~265VAC).

## Features
️· Integrated 650V power tube
️· Built-in single-stage active PFC function
️· Low input current total harmonic distortion (THD)
️· Primary-side feedback constant current control (no secondary feedback circuit)
️· Quasi-resonant switching mode (low switching losses)
️· ±3% LED output current accuracy
️· Excellent line and load regulation
️· Ultra-low startup current
️· LED open/short circuit protection
️· VCC over/under voltage protection
️· Cycle-by-cycle current limiting (CS)
️· Auto-restart function
️· Over-temperature protection
️· SOP7L package

## Applications
️· LED bulb
️· LED spotlight
️· E17/E27 LED candle lamp
️· Other LED lighting

## Electrical Characteristics
️· Input Voltage: 85VAC-265VAC
️· Output Power: <12W (Recommended)
️· Operating Frequency: 50kHz - 140kHz
️· Current Limiting: Cycle-by-cycle
️· Protection: Over-voltage, Under-voltage, Over-temperature, Open/Short circuit

## Protection Features
️· VCC Overvoltage Protection: 23.7V
️· VCC Undervoltage Lockout: 9.5V
️· LED Open Circuit Protection: Detects open circuits in the LED string.
️· LED Short Circuit Protection: Detects short circuits in the LED string.
️· Over-Temperature Protection: Shuts down at 150°C, restarts at 125°C.

## Package
️· SOP7L

## Key Benefits
️· High Efficiency: Quasi-resonant switching minimizes switching losses.
️· High Power Factor: Active PFC circuit improves power factor.
️· Simple Design: Integrated components reduce BOM cost.
️· Reliability: Comprehensive protection features.
️· Accurate Current Control: Provides stable LED output.