Datasheet > NCP1201/D

NCP1201/D

更新时间： 2024-11-05 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
18页	143K
描述
PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power with Fault Protection Modes

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NCP1201/D 数据手册

NCP1201

PWM Current−Mode

Controller for Universal

Off−Line Supplies Featuring

Low Standby Power with

Fault Protection Modes

http://onsemi.com

MARKING

Housed in SO−8 or DIP8 package, the NCP1201 enhances the

previous NCP1200 series by offering a reduced optocoupler current

with additional brownout detection protection (BOK). Similarly, the

circuit allows the implementation of complete off−line AC/DC

adapters, battery charger or Switch Mode Power Supplies (SMPS)

where standby power is a key parameter.

The NCP1201 features an efficient protection circuitry, whenever in

presence of a fault (e.g. failed optocoupler, overcurrent condition, etc.)

the control permanently disables the output pulses to avoid subsequent

damage to the system. The IC only restarts when the user cycles the

mains power supply.

With the low power internal structure, operating at a fixed 60 or 100

kHz, the controller supplies itself from the high−voltage rail, avoiding

the need of an auxiliary winding. This feature naturally eases the

designer’s task in battery charger applications. Finally, current−mode

control provides an excellent audio−susceptibility and inherent

pulse−by−pulsecontrol.

DIAGRAMS

SO−8

D SUFFIX

CASE 751

201Dy

ALYW

DIP−8

P SUFFIX

CASE 626

1201Pxx

AWL

YYWW

= Device Code: 6 for 60 kHz

= Device Code: 1 for 100 kHz

= Device Code: 60 for 60 kHz

= Device Code: 10 for 100 kHz

= Assembly Location

When the load current falls down to a pre−defined setpoint (V

)

= Wafer Lot

SKIP

Y, YY = Year

W, WW = Work Week

value, e.g. the output power demand diminishes, the IC automatically

enters the skip cycle mode and can provide excellent efficiency under

light load conditions. The skip mode is designed to operate at

relatively lower peak current so that acoustic noise commonly takes

place will not happen with NCP1201.

PIN CONNECTIONS

Features

BOK

• No Auxiliary Winding Operation

• AC Line Brownout Detect Protection, BOK Function

• Internal Output Short−Circuit Protection

• Latch−off Mode Fault Protection

VCC

DRV

GND

• Current−Mode with Skip−Cycle Capability

• Extremely Low No−Load Standby Power

• Internal Leading Edge Blanking

(Top View)

ORDERING INFORMATION

• 250 mA Gate Peak Current Driving Capability

• Internally Fixed Switching Frequency at 60 or 100 kHz

• Built−in Frequency Jittering for EMI Reduction

• Direct Optocoupler Connection

Device

Package

PDIP−8

SO−8

Shipping

NCP1201P60

50 Units/Rail

2500 Units/Rail

50 Units/Rail

NCP1201D60R2

NCP1201P100

NCP1201D100R2

• Internal Over Temperature Shutdown

PDIP−8

SO−8

Typical Applications

2500 Units/Rail

• AC/DC Adapters

• Offline Battery Chargers

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

Semiconductor Components Industries, LLC, 2003

Publication Order Number:

November, 2003 − Rev. 1

NCP1201/D

12 3 4 5 6 7...18

中文翻译

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与NCP1201/D相关器件

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NCP1201_06	ONSEMI	获取价格	PWM Current−Mode Controller for Universal Off−Line Supplies Featuring Low Stan
NCP1201D100R2	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power wi
NCP1201D100R2G	ONSEMI	获取价格	PWM Current−Mode Controller for Universal Off−Line Supplies Featuring Low Stan
NCP1201D60R2	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power wi
NCP1201D60R2G	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power wi
NCP1201P100	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power wi
NCP1201P100G	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power wi
NCP1201P60	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Low Standby Power wi
NCP1201P60G	ONSEMI	获取价格	PWM Current−Mode Controller for Universal Off−Line Supplies Featuring Low Stan
NCP1203	ONSEMI	获取价格	PWM Current-Mode Controller for Universal Off-Line Supplies Featuring Standby and Short Ci

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