NXP SSL152x 5W LED驱动方案

NXP 公司的SSL152x系列是开关电源（SMPS）控制器，采用高压EZ-HV SOI工艺和低压BiCMOS工艺，能直接从火线整流中工作。器件包括高压功率开关和起动电路。LED驱动器的功率高达15W，通用AC电压（80V-276V），可调整的频率，待机功耗低于100mW，主要用在改进型LED灯，LED镇流器，建筑物轮廓照明和隧道信号照明。本文介绍了SSL152x 主要特性，方框图，典型配置框图以及SSL1523 5 W LED驱动器技术指标，演示板电路图和材料清单（BOM）。
SSL1523 high power factor 5 W LED driver for universal mains
SSL152x SMPS ICs for mains LED drivers
The SSL152x family is a Switched Mode Power Supply (SMPS) controller IC that operates
directly from the rectified universal mains. It is implemented in the high-voltage EZ-HV SOI process, combined with a low-voltage BiCMOS process. The device includes a high-voltage power switch and a circuit for start-up directly from the rectified mains voltage.
A dedicated circuit for valley switching is built in, which makes a very efficient slim-line electronic concept for solid state lighting applications possible.
The SSL152x can operate in applications with a power range of up to 15 W. For a power range between 15 W and 25 W the SSL1623PH is the best choice. For LED powers above 25 W the SSL1750 can be used.
In its most basic applications, the SSL152x family 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 SSL152x family renders an efficient and low cost power supply system for mains LED drivers.
SSL152x 主要特性：
Designed for mains LED drivers up to 15 W
Integrated power switch:
SSL1522T: 12 ; 650 V
SSL1523P: 6.5 ; 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
Low standby power (< 100 mW) with frequency reduc...