Datasheet > NCP1380_12

NCP1380_12

更新时间： 2024-11-29 12:24:59

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
26页	388K
描述
Quasi-Resonant Current-Mode Controller for High-Power Universal Off-Line Supplies

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NCP1380_12 数据手册

NCP1380

Quasi-Resonant

Current-Mode Controller for

High-Power Universal

Off-Line Supplies

http://onsemi.com

The NCP1380 hosts a high−performance circuitry aimed to

powering quasi−resonant converters. Capitalizing on a proprietary

valley−lockout system, the controller shifts gears and reduces the

switching frequency as the power loading becomes lighter. This

results in a stable operation despite switching events always occurring

QUASI−RESONANT PWM

CONTROLLER FOR HIGH

POWER AC−DC WALL

ADAPTERS

in the drain−source valley. This system works down to the 4 valley

and toggles to a variable frequency mode beyond, ensuring an

excellent standby power performance.

To improve the safety in overload situations, the controller includes

an Over Power Protection (OPP) circuit which clamps the delivered

power at high−line. Safety−wise, a fixed internal timer relies on the

feedback voltage to detect a fault. Once the timer elapses, the

controller stops and stays latched for option A and C or enters

auto−recovery mode for option B and D.

Particularly well suited for adapter applications, the controller

features a pin to implement either a combined overvoltage /

overtemperature protection (Version A and B) or a combined

brown−out/overvoltage protection (Version C and D).

SOIC−8

D SUFFIX

CASE 751

MARKING DIAGRAMS

1380x

ALYW

Features

• Quasi−Resonant Peak Current−Mode Control Operation

• Valley Switching Operation with Valley−Lockout for Noise−Immune

Operation

• Frequency Foldback at Light Load to Improve the Light Load

Efficiency

1380x = Specific Device Code

= Device Option (A, B, C, or D)

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

• Adjustable Over Power Protection

• Auto−Recovery or Latched Internal Output Short−Circuit Protection

• Fixed Internal 80 ms Timer for Short−Circuit Protection

PIN CONNECTIONS

• Combined Overvoltage and Overtemperature Protection (A and B

Versions)

ZCD 1

8 CT

• Combined Overvoltage Protection and Brown−Out (C and D

Versions)

FAULT

• +500 mA/−800 mA Peak Current Source/Sink Capability

• Internal Temperature Shutdown

VCC

DRV

• Direct Optocoupler Connection

GND

• Extended V Range Operation Up to 28 V

• Extremely Low No−Load Standby Power

• SO−8 Package

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 25 of this data sheet.

• These Devices are Pb−Free and are RoHS Compliant

Typical Applications

• High Power ac−dc Converters for TVs, Set−Top Boxes etc.

• Offline Adapters for Notebooks

Publication Order Number:

June, 2012 − Rev. 4

NCP1380/D

12 3 4 5 6 7...26

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与NCP1380_12相关器件

型号	品牌	获取价格	描述	数据表
NCP1380ADR2G	ONSEMI	获取价格	Quasi-Resonant Current-Mode Controller for High-Power Universal Off-Line Supplies
NCP1380BDR2G	ONSEMI	获取价格	Quasi-Resonant Current-Mode Controller for High-Power Universal Off-Line Supplies
NCP1380CDR2G	ONSEMI	获取价格	Quasi-Resonant Current-Mode Controller for High-Power Universal Off-Line Supplies
NCP1380DDR2G	ONSEMI	获取价格	Quasi-Resonant Current-Mode Controller for High-Power Universal Off-Line Supplies
NCP1381	ONSEMI	获取价格	Low−Standby High Performance PWM Controller
NCP1381DR2G	ONSEMI	获取价格	Low−Standby High Performance PWM Controller
NCP1381DR2G	ROCHESTER	获取价格	1 A SWITCHING CONTROLLER, 125 kHz SWITCHING FREQ-MAX, PDSO14, LEAD FREE, SOIC-14
NCP1382DR2G	ROCHESTER	获取价格	1 A SWITCHING CONTROLLER, 125 kHz SWITCHING FREQ-MAX, PDSO14, LEAD FREE, SOIC-14
NCP1382DR2G	ONSEMI	获取价格	控制器，准谐振，电流模式，低待机耗量，带 PFC 关断
NCP139	ONSEMI	获取价格	1 A, Very Low Dropout Bias Rail CMOS Voltage Regulator

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