LTC3726 Secondary-Side Synchronous Forward Controller

The LTC3726 is a secondary-side controller for synchronous forward converters. When used in conjunction with the LTC3705/LTC3725 gate driver and primary-side controllers, the part creates a complete isolated power supply that combines the simplicity of OPTI-LOOP® compensation with the speed of secondary-side control.

The LTC3726 has been designed to simplify the design of highly efficient, secondary-side forward converters. Working in concert with the LTC3705 or LTC 3725, the LTC3726 forms a robust, self-starting converter that eliminates the need for the separate bias regulator that is commonly used in secondary-side control applications. In addition, a proprietary scheme is used to multiplex gate drive signals and DC bias power across the isolation barrier through a single, tiny pulse transformer.

The LTC3726 is available in a 16-lead SSOP package

产品特点 Features

Secondary-Side Control for Fast Transient Response
Self-Starting Architecture Eliminates Need for Separate Bias Regulator
Proprietary Gate Drive Encoding Scheme Reduces System Complexity
Current Mode Control Ensures Current Sharing
PLL Fixed Frequency: 100kHz to 500kHz
±1% Output Voltage Accuracy
OPTI-LOOP Compensation
Available in a Narrow 16-Lead SSOP Package

参数

应用

Isolated 48V Telecommunication Systems
Internet Servers and Routers
Distributed Power Step-Down Converters
Automotive and Heavy Equipment

典型应用图

LTC3726 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC3726EGN	SSOP	16	E	$4.56	$3.19
LTC3726EGN#PBF	SSOP	16	E	$4.56	$3.19
LTC3726EGN#TR	SSOP	16	E		$3.25
LTC3726EGN#TRPBF	SSOP	16	E		$3.25
LTC3726IGN	SSOP	16	I	$5.04	$3.51
LTC3726IGN#PBF	SSOP	16	I	$5.04	$3.51
LTC3726IGN#TR	SSOP	16	I		$3.57
LTC3726IGN#TRPBF	SSOP	16	I		$3.57

LTC3726 数据手册及相关资料下载

数据手册(英文) : LTC3726 - Secondary-Side Synchronous Forward Controller.PDF
可靠性数据 : R419 Reliability Data .PDF