Datasheet > UCC28019DG4

UCC28019DG4

更新时间： 2024-09-11 01:19:23

品牌	Logo	应用领域
德州仪器 - TI		功率因数校正
页数	文件大小	规格书
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描述
8-Pin Continuous Conduction Mode (CCM) PFC Controller

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UCC28019DG4 数据手册

UCC28019

www.ti.com

SLUS755B–APRIL 2007–REVISED DECEMBER 2007

8-Pin Continuous Conduction Mode (CCM) PFC Controller

FEATURES

DESCRIPTION

•

8-pin Solution Without Sensing Line Voltage

Reduces External Components

The UCC28019 8-pin active Power Factor Correction

(PFC) controller uses the boost topology operating in

Continuous Conduction Mode (CCM). The controller

is suitable for systems in the 100 W to >2 kW range

over a wide-range universal ac line input. Startup

current during under-voltage lockout is less than 200

µA. The user can control low power standby mode by

pulling the VSENSE pin below 0.77 V.

•

Wide-Range Universal AC Input Voltage

Fixed 65-kHz Operating Frequency

Maximum Duty Cycle of 97%

Output Over/Under-Voltage Protection

Input Brown-Out Protection

Low-distortion wave-shaping of the input current

using average current mode control is achieved

without input line sensing, reducing the Bill of

Materials component count. Simple external networks

allow for flexible compensation of the current and

voltage control loops. The switching frequency is

internally fixed and trimmed to better than 5%

accuracy at 25°C. Fast 1.5-A gate peak current drives

the external switch.

Cycle-by-Cycle Peak Current Limiting

Open Loop Detection

Low-Power User Controlled Standby Mode

APPLICATIONS

•

CCM Boost Power Factor Correction Power

Converters in the 100 W to >2 kW Range

Server and Desktop Power Supplies

Telecom Rectifiers

Industrial Electronics

Home Electronics

•

Numerous system-level protection features include

peak current limit, soft over-current detection,

open-loop detection, input brown-out detection,

output

over-voltage

protection/under-voltage

detection, a no-power discharge path on VCOMP,

and overload protection on ICOMP. Soft-Start limits

boost current during start-up. A trimmed internal

reference provides accurate protection thresholds

and regulation set-point. An internal clamp limits the

gate drive voltage to 12.5 V.

CONTENTS

•

Electrical Characteristics 3

Device Information 10

Application Information 12

Design Example 23

Additional References 43

TYPICAL APPLICATION DIAGRAM

V_OUT

EMI Filter

LINE

INPUT

Bridge

Rectifier

–

GND

GATE

VCC

Auxilary

Supply

ICOMP

ISENSE VSENSE

VINS

VCOMP

R_load

UCC28019

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...49

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UCC28019DG4 替代型号

型号	品牌	替代类型	描述	数据表
UCC28019AD	TI	类似代替	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019DR	TI	类似代替	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019D	TI	类似代替	8-Pin Continuous Conduction Mode (CCM) PFC Controller

与UCC28019DG4相关器件

型号	品牌	获取价格	描述	数据表
UCC28019DR	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019DRG4	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019P	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC2801D	TI	获取价格	Low-Power BiCMOS Current-Mode PWM
UCC2801D	ROCHESTER	获取价格	1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO8, GREEN, PLASTIC, MS-012AA, SOIC
UCC2801DG4	TI	获取价格	Low-Power BiCMOS Current-Mode PWM
UCC2801DTR	TI	获取价格	Low-Power BiCMOS Current-Mode PWM
UCC2801DTR	ROCHESTER	获取价格	1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO8, GREEN, PLASTIC, MS-012AA, SOIC
UCC2801DTRG4	TI	获取价格	Low-Power BiCMOS Current-Mode PWM
UCC2801-EP	TI	获取价格	LOW-POWER BICMOS CURRENT-MODE PWM

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