UCC28019A - 8 引脚持续传导模式 (CCM) PFC 控制器

UCC28019A是TI德州仪器公司的一款功率因数校正产品，UCC28019A是8 引脚持续传导模式 (CCM) PFC 控制器，本站介绍了UCC28019A的封装应用图解、特点和优点、功能等，并给出了与UCC28019A相关的TI元器件型号供参考。

UCC28019A - 8 引脚持续传导模式 (CCM) PFC 控制器 - 功率因数校正 - 离线隔离型DC/DC控制器和转换器 - 德州仪器

产品特性

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/Undervoltage Protection
Input Brown-Out Protection
Cycle-by-Cycle Peak Current Limiting
Open Loop Detection
Low-Power User-Controlled Standby Mode

产品应用

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

产品说明

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 undervoltage lockout is less than 200 μA. The user can control low power standby mode by pulling the VSENSE pin below 0.77V.

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.

Numerous system-level protection features include peak current limit, soft over-current, open-loop detection, input brown-out, and output over/undervoltage. Soft-start limits boost current during start-up. A trimmed internal reference provides accurate protection thresholds and a regulation set-point. An internal clamp limits the gate drive voltage to 12.5 V.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
UCC28019A	SOIC (8)	3.91 mm × 4.9 mm
UCC28019A	PDIP (8)	6.35 mm × 9.81 mm

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