Datasheet > NCP1126_12

NCP1126_12

更新时间： 2024-01-17 09:55:57

品牌	Logo	应用领域
安森美 - ONSEMI		开关高压
页数	文件大小	规格书
13页	512K
描述
High Voltage Switcher for Offline Power Supplies

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中文翻译

获取价格

数据手册

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NCP1126_12 数据手册

NCP1126, NCP1129

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High Voltage Switcher for

Offline Power Supplies

The NCP1126/NCP1129 switcher offers everything needed to build

reliable and compact AC−DC switching power supplies with minimal

surrounding elements. Incorporating a rugged 650 V MOSFET,

converters built with the NCP112X can be safely designed for

international conditions without jeopardizing the overall reliability.

The NCP112X implements peak current mode control with adjustable

ramp compensation that ensures stability in Continuous Conduction

Mode (CCM) operation. With an external resistor, the maximum peak

current is adjustable, allowing the designer the ability to inject ramp

compensation to stabilize CCM power supplies.

http://onsemi.com

PDIP−7

P SUFFIX

CASE 626B

A short circuit fault condition is independently detected from the

auxiliary winding voltage resulting in improved short circuit

protection with true overload detection. The Source pin provides

access to the MOSFET source, allowing for overpower compensation.

With a supply range up to 26 V, the switcher also provides a jittered

65 kHz or 100 kHz switching frequency operated in peak current

mode control. When the power on the secondary side starts to

decrease, the switcher automatically folds back its switching

frequency down to a minimum level of 26 kHz. As the power further

goes down, the part enters skip cycle while limiting the peak current.

MARKING DIAGRAM

112xyPzzz

AWL

YYWWG

= Specific Device Code

6 = NCP1126

9 = NCP1129

= A or B

A = Latch

B = Auto−recovery

= Frequency

Features

• 650 V Avalanche Rated MOSFET (2 W NCP1129 / 6 W NCP1126)

• Fixed−Frequency 65 or 100 kHz Current−Mode Control Operation

zzz

65 = 65 kHz

• Frequency Foldback Down to 26 kHz and Skip−Cycle in Light Load

100 = 100 kHz

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

Conditions

• Adjustable Current Limit

• Internal Ramp Compensation

• Internal Fixed 4 ms Soft−Start

• 200 ms Timer−Based Auto−Recovery Short−Circuit Protection

• Frequency Jittering in Normal and Frequency Foldback Modes

• Option for Auto−Recovery or Latched Short−Circuit Protection

PIN CONNECTIONS

• Up to 26 V V Operation

VCC

GND

Drain

• Less than 100 mW Standby Power at High Line

• EPS 2.0 Compliant

• 7−Pin Package Provides Creepage Distance

• These are Pb−Free Devices

Source

(Top View)

Typical Applications

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 4 of this data sheet.

• Power Supplies for DVDs, CD Players, Set Top Boxes, TVs

• Auxiliary Power Supplies (USB, Appliances, TVs)

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:

October, 2012 − Rev. P0

NCP1126/D

12 3 4 5 6 7...13

中文翻译

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与NCP1126_12相关器件

型号	品牌	获取价格	描述	数据表
NCP1126AP100G	ONSEMI	获取价格	High Voltage Switcher
NCP1126AP65G	ONSEMI	获取价格	High Voltage Switcher
NCP1126BP100G	ONSEMI	获取价格	High Voltage Switcher
NCP1126BP65G	ONSEMI	获取价格	High Voltage Switcher
NCP1129	ONSEMI	获取价格	High Voltage Switcher
NCP1129AP100G	ONSEMI	获取价格	High Voltage Switcher
NCP1129AP65G	ONSEMI	获取价格	High Voltage Switcher
NCP1129BP100G	ONSEMI	获取价格	High Voltage Switcher
NCP1129BP65G	ONSEMI	获取价格	High Voltage Switcher
NCP112D	ONSEMI	获取价格	Supervisory IC for Desktop Power Supply Monitoring

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