CCM PFC控制器
DESCRIPON
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.
FEATURES
• 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 10 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
频率 0.3 MHz
针脚数 20
耗散功率 800 mW
开关频率 300 kHz
占空比 95 %
最大占空比 98 %
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 11.2V ~ 21V
电源电压Max 21 V
电源电压Min 11.2 V
安装方式 Surface Mount
引脚数 20
封装 TSSOP-20
长度 6.6 mm
宽度 1.2 mm
高度 6.6 mm
封装 TSSOP-20
工作温度 -40℃ ~ 125℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
UCC28070PWR TI 德州仪器 | 当前型号 | 当前型号 |
UCC28070PW 德州仪器 | 类似代替 | UCC28070PWR和UCC28070PW的区别 |
UCC28070PWG4 德州仪器 | 类似代替 | UCC28070PWR和UCC28070PWG4的区别 |
UCC28070PWRG4 德州仪器 | 类似代替 | UCC28070PWR和UCC28070PWRG4的区别 |