Datasheet > NCP1200/D

NCP1200/D

更新时间： 2024-11-22 23:53:23

品牌	Logo	应用领域
其他 - ETC		控制器
页数	文件大小	规格书
16页	136K
描述
PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies

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NCP1200/D 数据手册

NCP1200

PWM Current-Mode

Controller for Low-Power

Universal Off-Line Supplies

Housed in SO–8 or DIP–8 package, the NCP1200 represents a

major leap toward ultra–compact Switch–Mode Power Supplies.

Thanks to a novel concept, the circuit allows the implementation of a

complete offline battery charger or a standby SMPS with few external

components. Furthermore, an integrated output short–circuit

protection lets the designer build an extremely low–cost AC/DC wall

adapter associated with a simplified feedback scheme.

With an internal structure operating at a fixed 40 kHz, 60 kHz or 100

kHz, the controller drives low gate–charge switching devices like an

IGBT or a MOSFET thus requiring a very small operating power.

Thanks to current–mode control, the NCP1200 drastically simplifies

the design of reliable and cheap offline converters with extremely low

acoustic generation and inherent pulse–by–pulse control.

http://onsemi.com

MARKING

DIAGRAMS

SO–8

D SUFFIX

CASE 751

200Dy

ALYW

DIP–8

P SUFFIX

CASE 626

1200Pxxx

AWL

YYWW

When the current setpoint falls below a given value, e.g. the output

power demand diminishes, the IC automatically enters the skip cycle

mode and provides excellent efficiency at light loads. Because this

occurs at low peak current, no acoustic noise takes place.

Finally, the IC is self–supplied from the DC rail, eliminating the

need of an auxiliary winding. This feature ensures operation in

presence of low output voltage or shorts.

xxx

= Device Code: 40, 60 or 100

= Device Code:

4 for 40

6 for 60

1 for 100

= Assembly Location

= Wafer Lot

Features

• No Auxiliary Winding Operation

• Internal Output Short–Circuit Protection

• Extremely Low No–Load Standby Power

• Current–Mode with Skip–Cycle Capability

• Internal Leading Edge Blanking

Y, YY = Year

W, WW = Work Week

PIN CONNECTIONS

• 110 mA Peak Current Source/Sink Capability

• Internally Fixed Frequency at 40 kHz, 60 kHz and 100 kHz

• Direct Optocoupler Connection

• Built–in Frequency Jittering for Lower EMI

• SPICE Models Available for TRANsient and AC Analysis

• Internal Temperature Shutdown

Adj

Gnd

Drv

(Top View)

Typical Applications

• AC/DC Adapters

• Offline Battery Chargers

ORDERING INFORMATION

• Auxiliary/Ancillary Power Supplies (USB, Appliances, TVs, etc.)

See detailed ordering and shipping information in the package

dimensions section on page 13 of this data sheet.

Semiconductor Components Industries, LLC, 2001

Publication Order Number:

May, 2001 – Rev. 6

NCP1200/D

12 3 4 5 6 7...16

中文翻译

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与NCP1200/D相关器件

型号	品牌	获取价格	描述	数据表
NCP1200_06	ONSEMI	获取价格	PWM Current−Mode Controller for Low−Power Universal Off−Line Supplies
NCP1200_09	ONSEMI	获取价格	PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies
NCP1200A	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power
NCP1200A/D	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power
NCP1200AD100R2	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power
NCP1200AD100R2	ROCHESTER	获取价格	0.25A SWITCHING CONTROLLER, 114kHz SWITCHING FREQ-MAX, PDSO8, SOIC-8
NCP1200AD100R2G	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power
NCP1200AD100R2G	ROCHESTER	获取价格	0.25A SWITCHING CONTROLLER, 114kHz SWITCHING FREQ-MAX, PDSO8, LEAD FREE, SOIC-8
NCP1200AD40R2	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power
NCP1200AD40R2G	ONSEMI	获取价格	IC 0.25 A SWITCHING CONTROLLER, 48 kHz SWITCHING FREQ-MAX, PDSO8, LEAD FREE, SOIC-8, Switc

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