< 150 W applications, < 150W Applications, > 750 W applications, > 750W Applications, Average current mode, Continuous Control Mode, OVP, Overvoltage protection, Single-phase

Duty cycle (max) (%)

99.3

Vin (max) (V)

22

Operating temperature range (°C)

-40 to 125

Control mode

CCM

Topology

Boost, PFC controller

Rating

Catalog

Features

< 150 W applications, < 150W Applications, > 750 W applications, > 750W Applications, Average current mode, Continuous Control Mode, OVP, Overvoltage protection, Single-phase

Duty cycle (max) (%)

99.3

SOIC (D)

8

29.4 mm² 4.9 x 6

8-pin Solution Without Sensing Line Voltage Reduces External Components
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
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

8-pin Solution Without Sensing Line Voltage Reduces External Components
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
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

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.

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.

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.

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.

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.

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.

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具有增强启动和瞬态响应功能的 18kHz 至 250kHz CCM PFC 控制器 This product is a 8-pin continuous conduction mode (CCM) PFC controller, and has programmable frequency capability.

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	类型	标题	日期
*	数据表	8-Pin Continuous Conduction Mode (CCM) PFC Controller 数据表 (Rev. B)	2007年 12月 11日
	应用手册	Optimizing the UCC28019A to Avoid Audible Noise	2013年 6月 20日
	用户指南	UCC28019 350W Evaluation Module	2007年 3月 1日