Datasheet > NCP1216

NCP1216

更新时间： 2024-11-28 22:54:31

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
18页	185K
描述
PWM Current-Mode Controller for High-Power Universal Off-Line Supplies

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NCP1216 数据手册

NCP1216, NCP1216A

PWM Current−Mode

Controller for High−Power

Universal Off−Line Supplies

Housed in a SOIC−8 or PDIP−7 package, the NCP1216 represents

an enhanced version of NCP1200 based controllers. Due to its high

drive capability, NCP1216 drives large gate−charge MOSFETs, which

together with internal ramp compensation and built−in frequency

jittering, ease the design of modern AC−DC adapters.

With an internal structure operating at different fixed frequencies,

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

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

task in some particular applications, e.g. battery chargers or TV sets.

Current−mode control also provides an excellent input audio

susceptibility and inherent pulse−by−pulse control. Internal ramp

compensation easily prevents sub−harmonic oscillations from taking

place in continuous conduction mode designs.

http://onsemi.com

MINIATURE PWM

CONTROLLER FOR

HIGH−POWER AC−DC WALL

ADAPTERS AND OFF−LINE

BATTERY CHARGERS

MARKING

DIAGRAMS

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

power demand diminishes, the IC automatically enters the so−called

skip cycle mode and provides excellent efficiency at light loads.

Because this occurs at a user adjustable low peak current, no acoustic

noise takes place.

SOIC−8

D SUFFIX

CASE 751

16XXX

ALYW

The NCP1216 features an efficient protective circuitry, which in

presence of an over current condition disables the output pulses while

the device enters a safe burst mode, trying to restart. Once the default

has gone, the device auto−recovers.

P1216XXXX

AWL

PDIP−7

P SUFFIX

CASE 626B

YYWW

Features

• Pb−Free Package is Available

• No Auxiliary Winding Operation

• Current−Mode Control with Adjustable Skip−Cycle Capability

• Internal Ramp Compensation

• Limited Duty Cycle to 50% (A version only)

• Internal 1.0 ms Soft−Start (A version only)

• Built−In Frequency Jittering for Better EMI Signature

• Auto−Recovery Internal Output Short−Circuit Protection

• Extremely Low No−Load Standby Power

• 500 mA Peak Current Capability

• Fixed Frequency Versions at 65 kHz, 100 kHz, 133 kHz

• Internal Temperature Shutdown

• Direct Optocoupler Connection

• SPICE Models Available for TRANsient and AC Analysis

• Pin−to−Pin Compatible with NCP1200 Series

XXXX = Specific Device Code

= Assembly Location

WL, L = Wafer Lot

YY, Y = Year

WW, W = Work Week

DEVICE MARKING INFORMATION

See detailed device marking information in the ordering

information section on page 16 of this data sheet.

PIN CONNECTIONS

Adj

Gnd

Drv

Typical Applications

• High Power AC−DC Converters for TVs, Set−Top Boxes, etc.

• Offline Adapters for Notebooks

• Telecom DC−DC Converters

ORDERING INFORMATION

See detailed ordering and shipping information in the ordering

information section on page 16 of this data sheet.

• All Power Supplies

Semiconductor Components Industries, LLC, 2004

Publication Order Number:

September, 2004 − Rev. 8

NCP1216/D

12 3 4 5 6 7...18

中文翻译

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与NCP1216相关器件

型号	品牌	获取价格	描述	数据表
NCP1216/D	ETC	获取价格	PWM Current-Mode Controller for High-Power Universal Off-line Supplies
NCP1216A	ONSEMI	获取价格	PWM Current-Mode Controller for High-Power Universal Off-Line Supplies
NCP1216A2	ONSEMI	获取价格	Power Factor Controllers
NCP1216AD100	ONSEMI	获取价格	PWM Current-Mode Controller for High-Power Universal Off-Line Supplies
NCP1216AD100R2	ONSEMI	获取价格	0.5A SWITCHING CONTROLLER, 110kHz SWITCHING FREQ-MAX, PDSO8, SOIC-8
NCP1216AD100R2G	ONSEMI	获取价格	PWM Current-Mode Controller for High-Power Universal Off-Line Supplies
NCP1216AD133	ONSEMI	获取价格	PWM Current-Mode Controller for High-Power Universal Off-Line Supplies
NCP1216AD133R2	ONSEMI	获取价格	暂无描述
NCP1216AD133R2G	ONSEMI	获取价格	PWM Current-Mode Controller for High-Power Universal Off-Line Supplies
NCP1216AD65	ONSEMI	获取价格	PWM Current-Mode Controller for High-Power Universal Off-Line Supplies

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