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網址：huazuanh123.qy6.com 隔離高PF LZC8650 四段溫控功能 200W-600W工礦燈成方案_深圳市華鉆電子有限公司手機站

深圳市華鉆電子有限公司

首頁公司介紹產品展示供求商機誠信檔案聯系我們

深圳市華鉆電子有限公司

聯系人：柳江豪先生 (銷售工程師)

電話：0755-89958904

手機：18857446565

產品目錄

隔離高PF LZC8650 四段溫控功能 200W-600W工礦燈成方案

詳細說明

General Description

The LZC8620 is a single-power stage, isolated

and primary side offline LED lighting regulator

which achieves high power factor. The

proprietary real-current control method can

control the LED current accurately from the

primary side information. Support flexible current

compensation setting in the appointed

temperature with a NTC resistor.

It can significantly simplify the LED lighting

system design by eliminating the secondary side

feedback components and the opto-coupler. The

LZC8620 integrates active power factor

correction and works in Quasi Resonance mode

(QRM) in order to reduce the MOSFET switching

losses.

The external programmable line voltage

compensation provides a more precise output

current throughout the universal AC input

voltage range. The leading-edge blanking circuit

on the CS/FB input removes the signal glitch and

results in reduced external components and

system cost.

The multi-protection features of LZC8620 greatly

enhance the system reliability and safety. The

LZC8620 features VDD and output over voltage

protection; output short circuit protection,

cycle-by-cycle current limit on CS pin, VDD

UVLO and auto-restart and over-temperature

protection.

The driver output voltage is clamped at 16V to

protect the external power MOSFET.

Features

 Single stage PFC

 Primary side regulation without Secondary

Feedback

 Quasi Resonance (QR) mode with Fly-back

topology

 Real-Current control to meet accurate output

current

 Flexible current compensation setting in the

appointed temperature

 Very less components

 Programmable input AC voltage

compensation

 Leading Edge Blanking on CS/FB pin

 Protection Features

 Building in hysteresis OTP

 VDD over voltage protection

 Cycle by cycle current limiting on CS pin

 Output short to GND protection

 Output p