UCC28070-Q1 - 汽车类二相交错 CCM PFC 控制器

UCC28070-Q1是TI德州仪器公司的一款功率因数校正产品，UCC28070-Q1是汽车类二相交错 CCM PFC 控制器，本站介绍了UCC28070-Q1的封装应用图解、特点和优点、功能等，并给出了与UCC28070-Q1相关的TI元器件型号供参考。

UCC28070-Q1 - 汽车类二相交错 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

产品描述

The UCC28070 is an advanced power factor correction device that integrates two pulse-width modulators (PWMs) operating 180° out of phase. This interleaved PWM operation generates substantial reduction in the input and output ripple currents, and the conducted-EMI filtering becomes easier and less expensive. A significantly improved multiplier design provides a shared current reference to two independent current amplifiers that ensures matched average current mode control in both PWM outputs while maintaining a stable, low-distortion sinusoidal input line current.

The UCC28070 contains multiple innovations including current synthesis and quantized voltage feed-forward to promote performance enhancements in PF, efficiency, THD, and transient response. Features including frequency dithering, clock synchronization, and slew rate enhancement further expand the potential performance enhancements.

The UCC28070 also contains a variety of protection features including output over-voltage detection, programmable peak-current limit, under-voltage lockout, and open-loop protection.

产品特性

Qualified for Automotive Applications
Interleaved Average Current-Mode PWM Control with Inherent Current Matching
Advanced Current Synthesizer Current Sensing for Superior Efficiency
Highly-Linear Multiplier Output with Internal Quantized Voltage Feed-Forward Correction for Near-Unity PF
Programmable Frequency (30 kHz to 300 kHz)
Programmable Maximum Duty-Cycle Clamp
Programmable Frequency Dithering Rate and Magnitude for Enhanced EMI Reduction
- Magnitude: 3 kHz to 30 kHz
- Rate: Up to 30 kHz
External Clock Synchronization Capability
Enhanced Load and Line Transient Response through Voltage Amplifier Output Slew-Rate Correction
Programmable Peak Current Limiting
Bias-Supply UVLO, Over-Voltage Protection, Open-Loop Detection, and PFC-Enable Monitoring
External PFC-Disable Interface
Open-Circuit Protection on VSENSE and VINAC pins
Programmable Soft Start
20-Lead TSSOP Package

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