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MC33887 - 5.0 A H-Bridge with Load Current Feedback

General Description

of each terminal can be found in the Functional Terminal Description section, page 20.

Terminal 1 2 Terminal Name AGND FS Formal Name Analog Ground Fault Status for H-Bridge Definition Low-current analog signal ground.

Open drain active LOW Fault Status output requiring a pull-up resistor to 5.0 V.

Key Features

  • 5.0 V to 40 V Continuous Operation 120 mΩ RDS(ON) H-Bridge MOSFETs TTL/CMOS Compatible Inputs PWM Frequencies up to 10 kHz Active Current Limiting (Regulation) Output Short Circuit Protection (Short to V+ or Short to GND) Undervoltage Shutdown Fault Status Reporting Sleep Mode with Current Draw ≤50 µA (Inputs Floating or Set to Match Default Logic States).
  • Pb-Free Packaging Designated by Suffix Cod.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Freescale Semiconductor Technical Data MC33887 Rev 10.0, 07/2005 5.0 A H-Bridge with Load Current Feedback The 33887 is a monolithic H-Bridge Power IC with a load current feedback feature making it ideal for closed-loop DC motor control. The IC incorporates internal control logic, charge pump, gate drive, and low RDS(ON) MOSFET output circuitry. The 33887 is able to control inductive loads with continuous DC load currents up to 5.0 A, and with peak current active limiting between 5.2 A and 7.8 A. Output loads can be pulse width modulated (PWM-ed) at frequencies up to 10 kHz. The load current feedback feature provides a proportional (1/375th of the load current) constant-current output suitable for monitoring by a microcontroller’s A/D input.