Datasheet > AUIRS20302S

AUIRS20302S

更新时间： 2022-02-26 12:58:30

品牌	Logo	应用领域
英飞凌 - INFINEON		栅
页数	文件大小	规格书
28页	792K
描述
Pre-regulated Three Phase Gate Driver

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AUIRS20302S 数据手册

AUIRS20302S

Description

The AUIRS20302S is a three phase gate driver dedicated to BLDC motor drive up to 600W. Proprietary HVIC

technology enables this rugged monolithic design with enforced Automotive ESD & Latch-up grades. Primarily

designed for 24V battery application, its drive capability goes from 12v to 200V which cover all the abnormal

conditions of the vehicle. The gate drive circuitry features cross-conduction preventive and minimum dead-time

blocks. It is powered by a constant voltage so that the gate drives never exceed 17V including during Load Dump

condition.

An external MOSFET is acting as a pre-regulator. The inner charge pump and voltage control loop drives its gate in

order to keep the VPR pin constant when the battery voltage varies. The AUIRS20302S also features an over-

current protection that definitively shuts down all gates in case of short-circuit. The fault condition is reset by cycling

the FRST pin while the I.C is disabled. A blanking time, synchronized with each high side switch command, avoids

any premature triggering of the protection.

The logic control block of the AUIRS20302S is developed in order to support a fast and reliable 3 phase BLDC

design. For example, its inputs are compatible with the 3.3V logic processors and feature a short-pulse/noise

rejection filter. The 6 commands include matched propagation delays, shoot-through protections and minimum

dead-time. The bootstrap capacitor voltage of each phase is monitored independently (UVLO). Also, the maximum

gate voltage is controlled by the pre-regulator in all conditions. No linear or abnormal gate drive is possible. The

VPR pin can also supply the surrounding system components if the total consumption doesn’t exceed 0.1A.

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