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UCC28019A

更新时间： 2024-09-10 05:52:59

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
47页	1110K
描述
8-Pin Continuous Conduction Mode (CCM) PFC Controller

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UCC28019A 数据手册

UCC28019A

www.ti.com.................................................................................................................................................. SLUS828B–DECEMBER 2008–REVISED APRIL 2009

8-Pin Continuous Conduction Mode (CCM) PFC Controller

FEATURES

DESCRIPTION

•

8-pin Solution Reduces External Components

Wide-Range Universal AC Input Voltage

Fixed 65-kHz Operating Frequency

Maximum Duty Cycle of 98% (typ.)

Output Over/Under-Voltage Protection

Input Brown-Out Protection

The UCC28019A 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.

Start-up 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.

Cycle-by-Cycle Peak Current Limiting

Open Loop Detection

Low-distortion wave shaping of the input current

using average current mode control is achieved

without input line sensing, reducing the external

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 peak gate current drives the

external switch.

Low-Power User Controlled Standby Mode

APPLICATIONS

•

CCM Boost Power Factor Correction Power

Converters in the 100 W to 2 kW Range

Digital TV

Home Electronics

White Goods and Industrial Electronics

Server and Desktop Power Supplies

•

Numerous system-level protection features include

peak current limit, soft over-current, open-loop

detection,

input

brown-out,

and

output

over/under-voltage. 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.

Typical Application Diagram

V_OUT

EMI Filter

LINE

INPUT

Bridge

–

Rectifier

GND

GATE

VCC

Auxilary

Supply

ICOMP

ISENSE VSENSE

VINS VCOMP

R_load

UCC28019A

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...47

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与UCC28019A相关器件

型号	品牌	获取价格	描述	数据表
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
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

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