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NCP1217P65

更新时间： 2024-11-29 04:37:59

品牌	Logo	应用领域
安森美 - ONSEMI		开关光电二极管控制器
页数	文件大小	规格书
18页	198K
描述
Enhanced PWM Current-Mode Controller for High-Power Universal Off-Line Supplies

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NCP1217P65 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	DIP	包装说明：	DIP, DIP8,.3
针数：	8	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.15	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
控制模式：	CURRENT-MODE	控制技术：	PULSE WIDTH MODULATION
最小输入电压：	8.3 V	标称输入电压：	11 V
JESD-30 代码：	R-PDIP-T7	JESD-609代码：	e0
长度：	9.78 mm	功能数量：	1
端子数量：	7	最大输出电流：	0.5 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	DIP
封装等效代码：	DIP8,.3	封装形状：	RECTANGULAR
封装形式：	IN-LINE	峰值回流温度（摄氏度）：	240
认证状态：	Not Qualified	座面最大高度：	4.45 mm
子类别：	Switching Regulator or Controllers	表面贴装：	NO
切换器配置：	SINGLE	最大切换频率：	71.5 kHz
技术：	CMOS	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	30
宽度：	7.62 mm	Base Number Matches：	1

NCP1217P65 数据手册

NCP1217, NCP1217A

Enhanced PWM Current−Mode

Controller for High−Power

Universal Off−Line Supplies

Housed in an SO−8 or PDIP−7 package, the NCP1217 represents

the enhanced version of the NCP1203−based controllers. Thanks to its

high drive capability, NCP1217 drives large gate−charge MOSFETs,

which together with internal ramp compensation and built−in

overvoltage protection, ease the design of modern AC/DC adapters.

NCP1217 offers a true alternative to UC384X−based designs.

With an internal structure operating at different fixed frequencies

(65–100–133 kHz), the controller features a high−voltage startup FET,

which ensures a clean and loss less startup sequence. Its current−mode

control topology provides an excellent input audio−susceptibility and

inherent pulse−by−pulse control. Internal ramp compensation easily

prevents subharmonic oscillations from taking place in continuous

conduction mode designs.

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.

The NCP1217 features two efficient protective circuitries: 1) In

presence of an overcurrent condition, the output pulses are disabled

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

default has gone, the device auto−recovers. 2) If an external signal

(e.g. a temperature sensor) pulls Pin 1 above 3.2 V, output pulses are

immediately stopped and the NCP1217 stays latched in this position.

http://onsemi.com

MINIATURE PWM

CONTROLLER FOR HIGH

POWER AC/DC WALL

ADAPTERS AND OFFLINE

BATTERY CHARGERS

MARKING

DIAGRAMS

SO−8

D SUFFIX

CASE 751

17XXX

ALYW

PDIP−7

P SUFFIX

CASE 626B

P1217XXXX

AWL

YYWW

Reset occurs when the V collapses to ground, e.g. the user unplugs

the power supply.

Features

• Current−Mode with Adjustable Skip−Cycle Capability

• Built−in Internal Ramp Compensation

• Auto−Recovery Internal Output Short−Circuit Protection

• Internal 1.0 ms Soft−Start (A Version Only)

• Limited Duty−Cycle to 50% (A Version Only)

• Full Latchoff if Adjustment Pin is Brought High

• Extremely Low No−Load Standby Power

• Internal Temperature Shutdown

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.

• 500 mA Peak Current Capability

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

• Direct Optocoupler Connection

• Internal Leading Edge Blanking

• SPICE Models Available for TRANsient and AC Analysis

• Pb−Free Packages are Available

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

(Top View)

ORDERING INFORMATION

• All Power Supplies

See detailed ordering and shipping information in the ordering

information section on page 16 of this data sheet.

Semiconductor Components Industries, LLC, 2004

Publication Order Number:

July, 2004 − Rev. 3

NCP1217/D

12 3 4 5 6 7...18

中文翻译

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NCP1217P65 替代型号

型号	品牌	替代类型	描述	数据表
NCP1217P65G	ONSEMI	完全替代	Enhanced PWM Current−Mode Controller for High−Power Universal Off−Line S

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型号	品牌	获取价格	描述	数据表
NCP1217P65G	ONSEMI	获取价格	Enhanced PWM Current−Mode Controller for High−Power Universal Off−Line S
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NCP1219BD65R2G	ONSEMI	获取价格	PWM Controller with Adjustable Skip Level and External Latch Input
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