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的要性能与应用。

IRS26302DJPBFFULLY 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