Datasheet > NCP1361AABAYSNT1G

NCP1361AABAYSNT1G

更新时间： 2024-09-20 11:11:11

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
29页	935K
描述
低功耗离线恒定电流 PWM 电流模式控制器

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DATA SHEET

www.onsemi.com

MARKING

DIAGRAMS

Low Power Offline Constant

Current PWM Current-Mode

Controller with/without

High Voltage Startup

Current Source

SOIC−7

CASE 751U

XXXXX

ALYWX

TSOP−6

CASE 318G

xxxAYWG

NCP1361, NCP1366

The NCP1361/66 offers a new solution targeting output power

levels from a few watts up to 20 W in a universal−mains flyback

application. Due to a novel method this new controller offers a

primary−side constant current control, saving secondary−side

components to perform current regulation.

The NCP1361/66 operates in valley−lockout quasi−resonant peak

current mode control mode at nominal load to provide high efficiency.

When the secondary−side power starts diminishing, the switching

frequency naturally increases until a voltage−controlled oscillator

(VCO) takes the lead, synchronizing the MOSFET turn−on in a

drain−source voltage valley. The frequency is thus reduced by

stepping into successive valleys until the number 4 is reached. Beyond

this point, the frequency is linearly decreased in valley−switching

mode until a minimum is hit. Valley lockout during the first four

drain−source valleys prevents erratic discrete jumps and provides

good efficiency in lighter load situations.

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

(Note: Microdot may be in either location)

ORDERING INFORMATION

See detailed ordering and shipping information on page 25 of

this data sheet.

Features

•

10% Current Regulation

• 560 V Startup Current Source

• No Frequency Clamp, 80 or 110 kHz Maximum Switching

Frequency Options

• Quasi−Resonant Operation with Valley Switching Operation

• Fixed Peak Current & Deep Frequency Foldback @ Light Load

Operation

• External Constant Voltage Feedback Adjustment

• Cycle by Cycle Peak Current Limit

• Built−In Soft−Start

• Over & Under Output Voltage Protection

• Wide Operation V Range (up to 28 V)

• Low Start−up Current (2.5 mA typ.) with NCP1361

• Clamped Gate−drive Output for MOSFET

• CS & Vs/ZCD pin Short and Open Protection

• Internal Temperature Shutdown

• Less than 30 mW No−Load Performance at High Line with

NCP1366 Version

• These are Pb−Free Devices

Typical Applications

• Low power ac−dc Adapters for Chargers

• Ac−dc USB chargers for Cell Phones, Tablets and Cameras

Publication Order Number:

August, 2022 − Rev. 4

NCP1361/D

12 3 4 5 6 7...29

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与NCP1361AABAYSNT1G相关器件

型号	品牌	获取价格	描述	数据表
NCP1361BABAYSNT1G	ONSEMI	获取价格	低功耗离线恒定电流 PWM 电流模式控制器
NCP1361EABAYSNT1G	ONSEMI	获取价格	低功耗离线恒定电流 PWM 电流模式控制器
NCP1361FABAYSNT1G	ONSEMI	获取价格	低功耗离线恒定电流 PWM 电流模式控制器
NCP1362	ONSEMI	获取价格	Primary Side PWM Controller for Low Power Offline SMPS
NCP1362AADR2G	ONSEMI	获取价格	Primary Side PWM Controller for Low Power Offline SMPS
NCP1362ABDR2G	ONSEMI	获取价格	Primary Side PWM Controller for Low Power Offline SMPS
NCP1365	ONSEMI	获取价格	Low Power Offline Constant Current & Constant Voltage Primary Side PWM Current-Mode Contro
NCP1365AABCYDR2G	ONSEMI	获取价格	Low Power Offline Constant Current & Constant Voltage Primary Side PWM Current-Mode Contro
NCP1365ACBAXDR2G	ONSEMI	获取价格	低功耗离线固定电流和恒定电压初级侧 PWM 电流模式控制器，带高电压启动电流源
NCP1365BABCYDR2G	ONSEMI	获取价格	Low Power Offline Constant Current & Constant Voltage Primary Side PWM Current-Mode Contro

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