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(jì),具有可調(diào)過(guò)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(shì),方框圖以及典型應(yīng)用電路圖.
The 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 device includes a high voltage power switch and a start-up circuit that operates directly from the rectified mains voltage. A dedicated circuit for valley switching is built in, which makes a very efficient slim-line electronic LED driver concept possible.
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. Here no additional secondary electronics are required. 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(shì):
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
16-pin DIP package
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(jí)檢測(cè)
詳情請(qǐng)見(jiàn):
http://www.nxp.com/documents/data_sheet/SSL1623PH.pdf
