FAB REQUALIFICATION
The 33937A is a Field Effect Transistor (FET) pre-drivers designed for three phase motor control and similar applications. The integrated circuit (IC) uses SMARTMOS? technology.
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.
This product is undergoing a fab migration and device qualification is not complete. PC samples are available now. For more information contact your local sales office.
Features
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Fully specified from 8.0 to 40 V covers 12 and 24 V automotive systems
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Extended operating range from 6.0 to 58 V covers 12 and 42 V systems
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Greater than 1.0 A gate drive capability with protection
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Protection against reverse charge injection from CGD and CGS of external FETs
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Includes a charge pump to support full FET drive at low battery voltages
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Deadtime is programmable via the SPI port
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Simultaneous output capability enabled via safe SPI command
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This product is included in Freescale’s , with assured supply for a minimum of 15 years after launch
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