[原创] NXP MC33937A混合和电动汽车逆变器参考设计

NXP公司的MC33937A是用于三相马达控制和相关应用的FET预驱动器,包括三个高边FT预驱动器和三个低边FET预驱动器,满足AEC-Q100 grade 1规范,工作电压从6.0V到58V,栅极驱动电流1.0A到2.5A,主要用在汽车电子系统,包括冷却风扇,水泵,燃油泵,引擎控制和马达控制,执行器控制器以及电液与电动助力转向.本文介绍了MC33937A主要特性,简化框图,功能框图,应用框图以及评估板KIT33937AEKEVBE主要特性,电路图,材料清单和PCB设计图.

The 33937A is a field effect transistor (FET) pre-drivers designed for three phase motor control and similar applications. It meets the stringent requirements of automotive applications and is fully AEC-Q100 grade 1 qualified. The IC contains three high-side FET pre-drivers and three low-side FET pre-drivers. Three external bootstrap capacitors provide gate charge to the high-side FETs. The IC interfaces to a MCU via six direct input control signals, an SPI port for device setup and asynchronous reset, enable and interrupt signals. Both 5.0 and 3.0 V logic level inputs are accepted and 5.0 V logic level outputs are provided. The integrated circuit (IC) uses SMARTMOS technology。

MC33937A主要特性:

•Extended operating range from 6.0 V to 58 V covers 12 V and 42 V systems
•Gate drive capability of 1.0 A to 2.5 A
•Fully specified from 8.0 V to 40 V covers 12 and 24 V automotive systems..

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