Datasheet > NCP1252EDR2G

NCP1252EDR2G

更新时间： 2022-02-26 11:35:21

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
20页	191K
描述
Current Mode PWM Controller for Forward and Flyback Applications

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

NCP1252EDR2G 数据手册

NCP1252

Current Mode PWM

Controller for Forward and

Flyback Applications

The NCP1252 controller offers everything needed to build cost−

effective and reliable ac−dc switching supplies dedicated to ATX

power supplies. Thanks to the use of an internally fixed timer,

NCP1252 detects an output overload without relying on the auxiliary

Vcc. A Brown−Out input offers protection against low input voltages

and improves the converter safety. Finally a SOIC−8 package saves

PCB space and represents a solution of choice in cost sensitive project.

www.onsemi.com

OFFLINE CONTROLLER

Features

• Peak Current Mode Control

• Adjustable Switching Frequency up to 500 kHz

• Jittering Frequency 5% of the Switching Frequency

• Latched Primary Over Current Protection with 10 ms Fixed Delay

• Delay Extended to 150 ms in E Version

• Delayed Operation Upon Start−up via an Internal Fixed Timer

(A, B and C versions only)

SOIC−8

CASE 751

SUFFIX D

PDIP−8

CASE 626

SUFFIX P

PIN CONNECTIONS

• Adjustable Soft−start Timer

• Auto−recovery Brown−Out Detection

DRV

GND

• UC384X−like UVLO Thresholds

• Vcc Range from 9 V to 28 V with Auto−recovery UVLO

• Internal 160 ns Leading Edge Blanking

• Adjustable Internal Ramp Compensation

• +500 mA / –800 mA Source / Sink Capability

• Maximum 50% Duty Cycle: A Version

• Maximum 80% Duty Cycle: B Version

• Maximum 65% Duty Cycle: C Version

• Maximum 47.5% Duty Cycle: D & E Versions

• Ready for Updated No Load Regulation Specifications

• SOIC−8 and PDIP−8 Packages

(Top View)

MARKING DIAGRAMS

1252x

ALYWX

1252AP

AWL

YYWWG

= A, B, C, D or E

= Assembly Location

L, WL = Wafer Lot

Y, YY = Year

• These are Pb−Free Devices

Typical Applications

W, WW = Work Week

G or G = Pb−Free Package

• Power Supplies for PC Silver Boxes, Games Adapter...

• Flyback and Forward Converter

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 18 of this data sheet.

Publication Order Number:

January, 2016 − Rev. 7

NCP1252/D

12 3 4 5 6 7...20

下载PDF

与NCP1252EDR2G相关器件

型号	品牌	描述	获取价格	数据表
NCP1253	ONSEMI	Current-Mode PWM Controller for Off-line Power Supplies	获取价格
NCP1253_12	ONSEMI	Current-Mode PWM Current-Mode PWM Power Supplies	获取价格
NCP1253ASN100T1G	ONSEMI	Current-Mode PWM Controller for Off-line Power Supplies	获取价格
NCP1253ASN65T1G	ONSEMI	Current-Mode PWM Controller for Off-line Power Supplies	获取价格
NCP1253BSN100T1G	ONSEMI	Current-Mode PWM Controller for Off-line Power Supplies	获取价格
NCP1253BSN65T1G	ONSEMI	Current-Mode PWM Controller for Off-line Power Supplies	获取价格