Datasheet > NCP4307FASNT1G

NCP4307FASNT1G

更新时间： 2024-11-09 11:11:07

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
42页	838K
描述
Secondary Side Synchronous Rectification Driver with Dual Supply

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DATA SHEET

www.onsemi.com

Secondary Side Synchronous

Rectification Driver for High

Efficiency SMPS Topologies

TSOP−6

SN SUFFIX

CASE 318G−02

NCP4307

The NCP4307 is high performance driver tailored to control a

synchronous rectification MOSFET in switch mode power supplies.

Thanks to its high performance drivers and versatility, it can be used in

various topologies such as DCM or CCM flyback, quasi resonant

flyback and forward.

Internal minimum off−time and on−time blanking periods help to

fight the ringing induced by the PCB layout and other parasitic

elements. A reliable and noise less operation of the SR system is

ensured due to the Self Synchronization feature. The NCP4307 also

utilizes Kelvin connection of the driver to the MOSFET to achieve

high efficiency operation at full load and utilizes a light load detection

architecture to achieve high efficiency at light load.

MARKING DIAGRAM

XXXAYWG

XXX = Specific Device Code

= Assembly Location

= Year

= Work Week

ORDERING INFORMATION

See detailed ordering and shipping information on page 2 of

this data sheet.

The precise turn−off threshold, extremely low turn−off delay time

and high sink current capability of the driver allow the maximum

synchronous rectification MOSFET conduction time and enables

maximum SMPS efficiency.

Self−supply capability allows to use NCP4307 in high side

configuration and/or in low output voltage SMPS without auxiliary

winding or other power source.

Features

Typical Applications

• Self−Contained Control of Synchronous Rectifier in CCM, DCM and • Notebook Adapters

QR for Flyback Applications

• Precise True Secondary Zero Current Detection

• High Power Density AC/DC Power Supplies

(Cell Phone Chargers)

• LCD TVs

• Typically 15 ns Turn off Delay from Current Sense Input to Driver

• Rugged Current Sense Pin (up to 200 V)

• All SMPS with High Efficiency

Requirements

• Self−Supply Capability in Case of High Side Operation or Low

OUT

• Ultrafast Turn−off Trigger Interface/Disable Input (10.5 ns)

• Internal Minimum ON−Time With Reverse Current Protection

• Internal Minimum OFF−Time with Ringing Detection

• Improved Robust Self Synchronization Capability

• 7 A / 2 A Peak Current Sink / Source Drive Capability

• Operating Voltage Range up to V = 35 V

• Automatic Light−Load Disable Mode

• High Side Operation Capability without External Components or

Auxiliary Winding

• Two VCC Pins Option Allows to Optimize Power Consumption in

Wide V

Range Applications

OUT

• Low Startup and Disable Current Consumption

• TSOP6 Package

• These are Pb−Free Devices

Publication Order Number:

NCP4307/D

May, 2022 − Rev. 0

12 3 4 5 6 7...42

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与NCP4307FASNT1G相关器件

型号	品牌	获取价格	描述	数据表
NCP4307FBSNT1G	ONSEMI	获取价格	Secondary Side Synchronous Rectification Driv
NCP4307WASNT1G	ONSEMI	获取价格	Secondary Side Synchronous Rectification Driv
NCP4308	ONSEMI	获取价格	Synchronous Rectifier Controller
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NCP43080DDR2G	ONSEMI	获取价格	Synchronous Rectifier Controller
NCP43080DMNTWG	ONSEMI	获取价格	Synchronous Rectifier Controller
NCP43080DMTTWG	ONSEMI	获取价格	Synchronous Rectifier Controller
NCP43080QDR2G	ONSEMI	获取价格	Synchronous Rectifier Controller

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