IR 公司的IRS26302D是三相高压高速功率MOSFET 和IGBT驱动器，有三个互相独立的高边和低边输出通路以及全保护功能。此外还有一个用于PFC 或 Brake IGBT驱动的低边驱动器。高边连接的MOSFET或IGBT的工作电压可高达+600 V，广泛用于通用逆变器和空调器逆变器以及马达控制。本文介绍IRS26302DJPBF的要性能，方框图，功能方框图以及典型应用电路。

IRS26302DJPBF  FULLY PROTECTED 3-PHASE BRIDGE PLUS ONE GATE
DRIVER
The IRS26302DJPBF are high voltage, high speed power MOSFET and IGBT drivers with three independent high and low side referenced output channels for 3-phase applications. An additional low side driver is included for PFC or Brake IGBT driving operation. Proprietary HVIC technology enables rugged monolithic construction. Logic inputs are compatible with CMOS or LSTTL outputs, down to 3.3V logic. Three current trip functions that terminate all seven outputs can be derived from three external shunt resistors. Each overcurrent trip functions consists of detecting excess current across a shunt resistor on DC+ bus, on DC- bus and on Brake or PFC circuitry. An enable function is available to terminate all outputs simultaneously and is provided through a bidirectional pin combined with an open-drain FAULT pin. Fault signal is provided to indicate that an overcurrent or undervoltage shutdown has occurred. Overcurrent fault conditions are cleared automatically after an externally programmed delay via an RC network connected to the RCIN input. A diagnostic feature can give back to the controller the fault cause (UVcc, DC- or DC- overcurrent) and address a fault register. The output drivers feature a high pulse current buffer stage. Propagation delays are matched to simplify use in high frequency applications designed for minimum driver cross conduction. The floating channel can be used to drive N-channel power MOSFET’s or IGBT’s in the high side configuration which operates up to 600 V.

主要特性：
Features
Floating channel designed for bootstrap operation, fully
operational to +600 V
Tolerant to negative transient voltage – dV/dt immune
Full three phase gate driver plus one low side driver
Undervoltage lockout for all channels
Cross-conduction prevention logic
Power-on reset
Integrated bootstrap diode for floating channel supply
Over current protection on: DC-(Itrip), DC+(Ground fault) PFCtrip/BRtrip (PFC/Brake protection).

Single pin fault diagnostic function
Diagnostic protocol to address fault register
Self biasing for ground fault detection high voltage circuit
3.3 V logic compatible
Lower di/dt gate drive for better noise immunity
Externally programmable delay for automatic fault clear
RoHS compliant

典型应用：
Air conditioners inverters
Micro/Mini inverter drives
General purpose inverter
Motor control



图1。IRS26302DJPBF方框图



图2。IRS26302D功能方框图



图3。IRS26302DJPBF典型应用电路

来源：中电网