UCC28019

更新时间： 2024-09-10 04:27:07

品牌	Logo	应用领域
德州仪器 - TI		功率因数校正控制器
页数	文件大小	规格书
48页	823K
描述
8-Pin Continuous Conduction Mode (CCM) PFC Controller

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UCC28019 数据手册

UCC28019

www.ti.com

SLUS755–APRIL 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, open-loop

detection,

input

brown-out,

output

over/under-voltage, 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...48

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与UCC28019相关器件

型号	品牌	获取价格	描述	数据表
UCC28019_12	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019_15	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019A	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019AD	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019ADG4	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019ADR	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019AP	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019APG4	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019D	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller
UCC28019DG4	TI	获取价格	8-Pin Continuous Conduction Mode (CCM) PFC Controller

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