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IR2155是高压、高速MOS栅驱动集成电路,主要应用于高额开关电源、交流与直流电机驱动器、荧光灯交流电子镇流器及高频变换器中。IR2155驱动器采用8脚DIP封装,其引脚排列如图1所示。第①脚Vcc为IC电源电压输入端,它与第④脚COM之间接有一只稳压管,稳压电压为16.5V。第②脚和第③脚分别接电阻R_T和电容C_T,改变其值,则可改变振荡频率。第⑦脚和第⑤脚分别为振荡器高频、低频信号输出端,从而驱动外接的2只功率开关MOSFET/IGBT。在高边和低边电路中,设有死区时间控制电路,第⑦脚和第⑤脚输出的方波脉冲之间的时间
IR2155 is a high-voltage, high-speed MOS gate driver integrated circuit, mainly used in high switching power supply, AC and DC motor drives, fluorescent AC electronic ballasts and high frequency converters. IR2155 drive with 8-pin DIP package, the pin arrangement shown in Figure 1. The first pin Vcc for the IC power supply voltage input, it and the fourth pin COM directly between a regulator, regulator voltage is 16.5V. ② feet and ③ feet were connected to the resistor R_T and capacitor C_T, change its value, you can change the oscillation frequency. The ⑦ feet and ⑤ feet were oscillator high frequency, low frequency signal output, which drives the external 2 power MOSFET / IGBT switch. In the high-side and low-side circuits, with dead-time control circuit, the first ⑦ pin and ⑤ pin output between the square wave pulse time