Datasheet > NCP4308DMNTWG

NCP4308DMNTWG

更新时间： 2024-11-09 00:58:31

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
29页	385K
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Synchronous Rectifier Controller

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NCP4308DMNTWG 数据手册

NCP4308

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Synchronous Rectifier

Controller

The NCP4308 is a synchronous rectifier controller for switch mode

power supplies. The controller enables high efficiency designs for

flyback, quasi resonant flyback and LLC topologies.

Externally adjustable minimum off−time and on−time blanking

periods provides flexibility to drive various MOSFET package types

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

insured due to the Self Synchronization feature. The NCP4308 also

utilizes Kelvin connection of the driver to the MOSFET to achieve high

efficiency operation at full load.

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. The high

accuracy driver and 5 V gate clamp make it ideally suited for directly

driving GaN devices.

www.onsemi.com

MARKING

DIAGRAMS

NCP4308x

ALYW G

SOIC−8

D SUFFIX

CASE 751

4308x

ALYWG

DFN8

MN SUFFIX

CASE 488AF

Features

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

QR for Flyback or LLC Applications

• Precise True Secondary Zero Current Detection

• Rugged Current Sense Pin (up to 150 V)

• Adjustable Minimum ON−Time

ExMG

WDFN8

MT SUFFIX

CASE 511AT

• Adjustable Minimum OFF-Time with Ringing Detection

• Adjustable Maximum ON−Time for CCM Controlling of Primary

QR Controller

4308x = Specific Device Code

x = A, B, C, D or Q

• Improved Robust Self Synchronization Capability

• 8 A / 4 A Peak Current Sink / Source Drive Capability

= Specific Device Code

x = A, 2, C, D or Q

= Assembly Location

= Wafer Lot

= Year

= Work Week

• Operating Voltage Range up to V = 35 V

• GaN Transistor Driving Capability (options A and C)

• Low Startup Current Consumption

• Maximum Operation Frequency up to 1 MHz

• SOIC-8 and DFN−8 (4x4) and WDFN8 (2x2) Packages

• These are Pb−Free Devices

= Date Code

= Pb−Free Package

(Note: Microdot may be in either location)

ORDERING INFORMATION

Typical Applications

See detailed ordering and shipping information on page 26 of

this data sheet.

• Notebook Adapters

• High Power Density AC/DC Power Supplies (Cell Phone Chargers)

• LCD TVs

• All SMPS with High Efficiency Requirements

This document contains information on a product under development. ON Semiconductor

reserves the right to change or discontinue this product without notice.

Publication Order Number:

September, 2015 − Rev. P0

NCP4308/D

12 3 4 5 6 7...29

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与NCP4308DMNTWG相关器件

型号	品牌	获取价格	描述	数据表
NCP4308DMTTWG	ONSEMI	获取价格	Synchronous Rectifier Controller
NCP4308QDR2G	ONSEMI	获取价格	Synchronous Rectifier Controller
NCP431	ONSEMI	获取价格	Programmable Precision References
NCP4318	ONSEMI	获取价格	Advanced Synchronous Rectifier Controller for LLC Resonant Converter
NCP4318AHDDR2G	ONSEMI	获取价格	Dual Channel Synchronous Rectification Controller
NCP4318AHJ	ONSEMI	获取价格	Advanced Synchronous Rectifier Controller for LLC Resonant Converter
NCP4318AHJDR2G	ONSEMI	获取价格	Dual Channel Synchronous Rectification Controller
NCP4318ALC	ONSEMI	获取价格	Advanced Synchronous Rectifier Controller for LLC Resonant Converter
NCP4318ALCDR2G	ONSEMI	获取价格	Dual Channel Synchronous Rectification Controller
NCP4318ALFPDR2G	ONSEMI	获取价格	Dual Channel Synchronous Rectification Controller

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