The design operates over the full 36-V to 72-V telecom input range, and is able to fully regulate down to zero load current. Table 1. Design Requirements PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Input Characteristics Input voltage range No load input current 36 VIN = 36 V, IOUT = 0...
型号: UCC2895QDWRQ1 品牌: TI 封装: SOIC-20-300mil 描述: UCC2895-Q1 是一个全桥相移脉冲宽度调制 (PWM) 控制器,通过相移一个半桥相对于另一个半桥的开关来控制全桥功率级。它可以在高频率下提供高效的零电压开关,支持电压模式或电流模式控制。 国内价格 1+ 45.0036 1+ 0 10+ 43.9452 10+ 0 30...
2016 NOTE Although the maximum VVAO is clamped at 5 V, at full load VVAO may vary around an approximate center point of 4.2 V to compensate for the effects of the quantized feed- forward voltage in the multiplier stage (see Linear Multiplier and Quantized Voltage Feed Forward for details)...
This means that the current sense signal at the PFC_CS pin must represent the inductor current during the full PFC switching cycle. That is when the MOSFET is ON and also when the MOSFET is OFF. This is achieved by putting the current sensing resistor, RCS(pfc), in the position shown ...
September 2010 – Revised June 2011 UCC28950 600-W, Phase-Shifted, Full-Bridge Application Report Michael O'Loughlin Introduction In high-power server applications to meet high-efficiency and green standards some power-supply de...
Control voltages below the 1.25-V threshold result in zero duty cycle (pulse skipping) while voltages above 4.5 V result in full duty cycle (DMAX) operation. SS/SD (pin 10) A capacitor (CSS) connected between this pin and GND (pin 6) programs the soft start time of the power converter...
full load. The charger is designed for input voltage range of 175V – 265V AC. The design form factor (230mm x 80mm) is compact for the power level of 400W. The design has an operating overall system efficiency of 92% at full load, with voltage and current regulation within +/- 3%...
full load. The charger is designed for input voltage range of 175V – 265V AC. The design form factor (230mm x 80mm) is compact for the power level of 400W. The design has an operating overall system efficiency of 92% at full load, with voltage and current regulation within +/- 3%...
(planned) 2 Applications • Server power supplies • Solar inverter, solar power optimizer • Telecom brick converter • Wireless infrastructure • Industrial transportation and robotics The UCC21220 and UCC21220A devices are basic and functional isolated dual-channel gate drivers with 4A peak-...
and PFC-Enable Monitoring • External PFC-Disable Interface • Open-Circuit Protection on VSENSE and VINAC pins • Programmable Soft-Start 2 Applications • High-Efficiency Server and Desktop Power Supplies • Telecom Rectifiers • White Goods and Industrial Equipment 3 Description The UCC280...