Datasheet > NE5568FE

NE5568FE

更新时间： 2024-09-16 22:19:59

品牌	Logo	应用领域
恩智浦 - NXP		开关控制器
页数	文件大小	规格书
2页	26K
描述
Switched-mode power supply controller

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NE5568FE 数据手册

Philips Semiconductors

Product specification

Switched-mode power supply controller

NE5568

DESCRIPTION

PIN CONFIGURATION

The NE5568 is a control circuit for use in switched mode power

supplies. It contains an internal temperature-compensated supply,

PWM, sawtooth oscillator, over-current sense latch, and output

stage. The device is intended for low cost SMPS applications where

extensive housekeeping functions are not required. The NE5568 is

a selected version of the NE5561.

FE, N Packages

GND

OUTPUT

CURRENT SENSE

R , C

FEEDBACK

GAIN

FEATURES

TOP VIEW

• Micro-miniature (D) package

SL00437

• Pulse width modulator

Figure 1. Pin Configuration

• Current limiting (cycle by cycle)

• Sawtooth generator

APPLICATIONS

• Switch mode power supplies

• DC motor controller inverter

• DC/DC converter

• Stabilized power supply

• Double-pulse protection

• Internal temperature-compensated reference

ORDERING INFORMATION

DESCRIPTION

TEMPERATURE RANGE

0 to +70°C

ORDER CODE

NE5568N

DWG #

SOT97-1

0580A

8-Pin Plastic Dual In-Line Package (DIP)

8-Pin Cerdip Dual In-Line Package (CERDIP)

0 to +70°C

NE5568FE

BLOCK DIAGRAM

R , C

REF

VOLTAGE

SAWTOOTH

GENERATOR

ERROR

AMP

OUTPUT

LATCH

FEEDBACK

–

PWM

GAIN

0.5V

–

8.2V

STABILIZED

SUPPLY

CURRENT

SENSE

GND

SL00438

Figure 2. Block Diagram

ABSOLUTE MAXIMUM RATINGS

SYMBOL

PARAMETER

RATING

UNIT

Supply voltage

Output current

Output duty cycle

OUT

Max total power dissipation

Operating temperature range

0.75

0 to 70

°C

1994 Aug 31

853-0890 13721

中文翻译

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与NE5568FE相关器件

型号	品牌	获取价格	描述	数据表
NE5568K1+/-.1%	VISHAY	获取价格	Fixed Resistor, Metal Film, 0.25W, 68100ohm, 250V, 0.1% +/-Tol, -25,25ppm/Cel,
NE5568K1+/-.25%	VISHAY	获取价格	Fixed Resistor, Metal Film, 0.25W, 68100ohm, 250V, 0.25% +/-Tol, -25,25ppm/Cel,
NE5568N	NXP	获取价格	Switched-mode power supply controller
NE5568N-B	ETC	获取价格	Voltage-Mode SMPS Controller
NE5568R1+/-.1%	VISHAY	获取价格	Fixed Resistor, Metal Film, 0.25W, 68.1ohm, 250V, 0.1% +/-Tol, -25,25ppm/Cel,
NE5569R8+/-.5%	VISHAY	获取价格	Fixed Resistor, Metal Film, 0.25W, 69.8ohm, 250V, 0.5% +/-Tol, -25,25ppm/Cel,
NE556A	NXP	获取价格	IC DUAL PULSE; RECTANGULAR, TIMER, PDIP14, Analog Waveform Generation Function
NE556CD	ETC	获取价格	Analog Timer Circuit
NE556CN	ETC	获取价格	Analog Timer Circuit
NE556D	TI	获取价格	DUAL PRECISION TIMERS