PT4228 datasheet by PowTech.
| Part number | PT4228 |
|---|---|
| Datasheet | PT4228-PowTech.pdf |
| File Size | 235.92 KB |
| Manufacturer | PowTech |
| Description | Non-isolated single-stage active PFC LED driver chip |
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PT4228 非隔离型单级有源 PFC LED 驱动芯片 概述 特点 PT4228是一款带有源功率因数校正的高精度降压型 LED恒流驱动芯片，适用于85Vac-265Vac全电压输入范 围的非隔离LED恒流电源。驱动器集成了有源功率因数 校正电路，可以实现高功率因数和低的总谐波失真。由 于工作在电感电流临界导通模式，功率MOS管处于零电 流开通状态，开关损耗得以减小，同时电感的利用率也 较高。 PT4228采用独特的电流采样及恒流控制机制，具备优异 的线电压调整率、负载调整率以及输出电流温度特性。.
| Part Number | Description |
|---|---|
| PT4223 | 1-5W Primary Side CC Regulator |
| PT4225 | 1-5W Primary Side CC Regulator |
| PT4227 | 1-10W Primary Side CC Regulator |
| PT4201 | Current-mode PWM Controller |
| PT4203 | Primary Side CC Regulator |
| PT4204 | Primary Side CC Regulator |
| PT4205 | 1.2A Step-down HB LED Driver |
| PT4207 | Universal High Brightness LED Driver |
| PT4209 | Primary Side Offline LED Controller |
| PT4211 | 30V/350mA High-Brightness LED Driver |
