Freescale MC33816汽车电磁阀精密控制解决方案

Freescale公司的MC33816是用于汽车发动机喷油器和电磁阀门控制的混合信号集成电路, 提供有成本效益灵活和智能的高边和低边MOSFET栅极驱动器,主要用于汽车(12V),卡车和工业(24V)动力总成,汽油和柴油直喷机和传动装置.本文介绍了MC33816主要特性,功能框图和简化框图,典型应用电路,以及评估板KIT33816AEEVM主要特性和建立框图,电路图,材料清单与PCB元件布局图.

The MC33816 is a mixed signal IC for engine injector and electrical valve control, which provides a cost effective, flexible, and smart, high-side and low-side MOSFET gate drivers. The device includes both individual charge pump outputs for each high-side pre-driver and high-voltage DC-DC converter pre-driver. Gate drive, diagnosis, and protection against external faults, are managed through four independent and concurrent digital microcores using an extensive set of 93 microcode instructions. Each of the two logic channels, comprised of two microcores, has its own Code RAM and Data RAM. The internal microcode is protected against theft via encryption and corruption via check sums. All functions are designed to minimize the number of external components required.

MC33816主要特性:

High-side and Low-side Pre-drivers
•Five high-side pre-drivers for logic level N-channel MOSFETs using four programmable slew rates..

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