簡介SSL1623PH開關(guān)電源LED驅(qū)動方案
英飛凌汽車電子生態(tài)圈
NXP 公司的SSL1623PH是開關(guān)電源(SMPS)控制器，能直接從通用電壓火線(80V-276V)整流電壓工作，它集成了6.5Ω和650 V的功率開關(guān)，可調(diào)頻率以方便設(shè)計，具有可調(diào)過流保護(hù)，以及欠壓保護(hù)，溫度保護(hù)和短路保護(hù)，主要用在LED鎮(zhèn)流器，外觀照明，LED點(diǎn)照明以及商業(yè)照明。本文介紹了SSL1623PH主要特性和優(yōu)勢，方框圖以及典型應(yīng)用電路圖。
本文引用地址：http://www.ex-cimer.com/article/174626.htmThe SSL1623PH is a Switched Mode Power Supply (SMPS) controller IC that operates directly from the rectified universal AC mains. It is implemented in the high voltage Easy High Voltage Silicon-On-Insulator (EZ-HV SOI) process, combined with a low voltage Bipolar Complementary Metal Oxide Semiconductor (BiCMOS) process.
The SSL1623PH can operate in LED applications with a power range of up to 25 W. Applications below 15 W are more suited to the SSL152x family of mains LED drivers. In its most basic version of application the SSL1623PH acts as a voltage source. A combined voltage and current source can be realized with minimum costs for external components. Implementation of the SSL1623PH renders an efficient and low cost LED power supply system.
SSL1623PH主要特性和優(yōu)勢：
Integrated power switch: 6.5 Ω and 650 V
Operates from universal AC mains supplies, 80 V to 276 V
Adjustable frequency for flexible design
RC oscillator for load insensitive regulation loop constant
Valley switching for minimum switch-on loss
Adjustable overcurrent protection
Undervoltage protection
Temperature protection
Short-circuit winding protection
Safe restart mode for system fault conditions
Simple application with both primary and secondary (opto) feedback
SSL1623PH應(yīng)用：
LED ballasts
Contour lighting
LED spotlights
Channel letter lighting
Down lighting
Commercial lighting (retail displays)
圖1.SSL1623PH方框圖
圖2.SSL1623PH典型應(yīng)用電路圖-初級檢測
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