Datasheet > TEA1795T

TEA1795T

更新时间： 2024-11-12 15:19:23

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
14页	134K
描述
GreenChip dual Synchronous Rectifier controller

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TEA1795T 数据手册

TEA1795T

GreenChip synchronous rectifier controller

Rev. 1 — 4 November 2010

Product data sheet

1. General description

The TEA1795T is a member of the new generation of Synchronous Rectifier (SR)

controller ICs for switched mode power supplies. Its high level of integration enables the

design of a cost-effective power supply with a minimum number of external components.

The TEA1795T is a dedicated controller IC for synchronous rectification on the secondary

side of resonant converters. It has two driver stages for driving the SR MOSFETs, which

are rectifying the outputs of the central tap secondary transformer windings.

The two gate driver stages have their own sensing inputs and operate independently of

each other.

The TEA1795T is fabricated in a Silicon On Insulator (SOI) process.

2. Features and benefits

2.1 Distinctive features

Accurate synchronous rectification functionality

Wide supply voltage range (8.5 V to 38 V)

Separate sense inputs for sensing the drain and source voltage of each SR MOSFET

High level of integration, resulting in a minimum external component count

High driver output voltage of 10 V to drive all MOSFET brands to the lowest R_DSon

2.2 Green features

Low current consumption

High system efficiency from no load to full load

2.3 Protection features

UnderVoltage Protection (UVP)

3. Applications

The TEA1795T is intended for resonant power supplies. In such applications, it can drive

two external synchronous rectifier MOSFETs which replace diodes for the rectification of

the voltages on the two secondary windings of the transformer. It can be used in

applications such as:

Adapters

ATX power supplies

12 3 4 5 6 7...14

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