Datasheet > NCP4318AHJ

NCP4318AHJ

更新时间： 2024-11-11 02:51:11

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
22页	1074K
描述
Advanced Synchronous Rectifier Controller for LLC Resonant Converter

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NCP4318AHJ 数据手册

Advanced Synchronous

Rectifier Controller for LLC

Resonant Converter

NCP4318

NCP4318 is an advanced synchronous rectification (SR) controller

for LLC resonant converter with minimum external components. It

has two gate driver stages for driving the SR MOSFETs which are

rectifying the outputs of the secondary transformer windings. The two

gate driver stages have their own Drain and Source sensing inputs and

operate independently of each other. The advanced adaptive dead time

control compensates a voltage across parasitic inductance to minimize

the body diode conduction and maximize the system efficiency. The

advanced turn−off control algorithm allows stable SR operation over

entire load range. NCP4318 has two versions of pin assignment –

NCP4318AXX, NCP4318BXX.

www.onsemi.com

SOIC 8, 150 mils

CASE 751BD

MARKING DIAGRAM

Features

• Mixed Mode SR Turn−off Control

• Anti Shoot−through Control for Reliable SR Operation

NCP4318

UVW

AWLYYWW

• Separate 200 V Rated Sense Pins for the Drain and Dedicated Source

Sense Pins

• Advanced Adaptive Dead Time Control

• SR Current Inversion Detection

= Pin Layout, A and B

= Frequency, H: High, L: Low

= Additional IPT option

= Assembly Location

• Adaptive Minimum Turn−on Time for Noise Immunity

• SR Conduction Time Increase Rate Limitation

• Multi−level Turn−off Threshold Voltage

WL = Wafer Lot Traceability

YYWW = Date Code

• Adaptive Gate Voltage Control (10 V, 6 V)

PIN CONNECTIONS

• Low Operating Current (100 mA) in Green Mode

• Soft Start for 512 Switching Cycle with 0 V/6 V Gate Output Voltage

• Very Fast Turn−on and Turn−off Delay Time (30 ns/30 ns)

• Large Gate Sourcing and Sinking Current (1.5 A/4.5 A)

• Wide Operating Supply Voltage Range from 6.5 V to 35 V

• Wide Operating Frequency Range (22 kHz to 500 kHz)

• SOIC−8 Package

NCP4318AXX

GATE1

GND

VS1

GATE2

VDD

VD2

VD1

VS2

• These Devices are Pb−Free and are RoHS Compliant

NCP4318BXX

Applications

• High Power Density Adapters

• Large Screen LED−TV and OLED−TV Power Supplies

• High Efficiency Desktop and Server Power Supplies

• Networking and Telecom Power Supplies

• High Power LED Lighting

GATE1

GND

VD1

GATE2

VDD

VD2

VS1

VS2

(Top View)

ORDERING INFORMATION

See detailed ordering, marking and shipping information on

page 3 of this data sheet.

Publication Order Number:

March, 2021 − Rev. 1

NCP4318/D

12 3 4 5 6 7...22

中文翻译

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与NCP4318AHJ相关器件

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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
NCP4318ALGPDR2G	ONSEMI	获取价格	Dual Channel Synchronous Rectification Controller
NCP4318ALKDR2G	ONSEMI	获取价格	Dual Channel Synchronous Rectification Controller
NCP4318ALLDR2G	ONSEMI	获取价格	Dual Channel Synchronous Rectification Controller
NCP4318ALS	ONSEMI	获取价格	Advanced Synchronous Rectifier Controller for LLC Resonant Converter
NCP4318ALSDR2G	ONSEMI	获取价格	Dual Channel Synchronous Rectification Controller
NCP4318BLC	ONSEMI	获取价格	Advanced Synchronous Rectifier Controller for LLC Resonant Converter

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