LTC3725 - LTC3725是Single-Switch Forward Controller and Gate Driver

LTC3725是LINEAR凌力尔特公司的一款反激式、正激式和隔离式控制器产品，LTC3725是LTC3725是Single-Switch Forward Controller and Gate Driver，本站介绍了LTC3725的封装应用图解、特点和优点、功能等，并给出了与LTC3725相关的LINEAR元器件型号供参考。

LTC3725 - LTC3725是Single-Switch Forward Controller and Gate Driver - 反激式、正激式和隔离式控制器 - 电源管理 - 凌力尔特

LTC3725 - Single-Switch Forward Controller and Gate Driver

LTC3725 - Single-Switch Forward Controller and Gate Driver - Linear Technology（凌力尔特）

功能描述

The LTC3725 is a controller for a single-switch forward converter and includes an on-chip gate driver.

For secondary-side control, combine the LTC3725 with the LTC3706 PolyPhase secondary-side synchronous forward controller to create a complete forward converter using a minimum of discrete parts. A proprietary scheme is used to multiplex gate drive signals across the isolation barrier through a tiny pulse transformer. The on-chip rectifier and the same pulse transformer provide gate drive bias power.

Alternatively, the LTC3725 can be used as a standalone voltage mode controller in a primary-side control architecture with optoisolator feedback. Voltage feedforward provides excellent line regulation and transient response.

特点

High Speed Gate Driver for Forward Converter

On-Chip Rectifier and Self-Starting Architecture Eliminates Need for Separate Gate Drive Bias Supply

Wide Input Voltage Supply Range: 9V and Up

Linear Regulator Controller for Fast Start-Up

Precision UVLO with Adjustable Hysteresis

Overcurrent Protection

Volt-Second Limit Prevents Transformer Core Saturation

Voltage Feedforward for Fast Transient Response

Available in 10-Lead MSOP Package

应用

Isolated 48V Telecommunication Systems

Internet Servers and Routers

Distributed Power Step-Down Converters

Automotive and Heavy Equipment

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC3725EMSE	MS-10E	E	$3.66	$2.56
LTC3725EMSE#PBF	MS-10E	E	$3.66	$2.56
LTC3725EMSE#TR	MS-10E	E		$2.62
LTC3725EMSE#TRPBF	MS-10E	E		$2.62
LTC3725IMSE	MS-10E	I	$4.04	$2.83
LTC3725IMSE#PBF	MS-10E	I	$4.04	$2.83
LTC3725IMSE#TR	MS-10E	I		$2.89
LTC3725IMSE#TRPBF	MS-10E	I		$2.89

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