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UMD9112 - ELECTRIC TOY DC MOTOR DRIVE

General Description

UTC UMD9112 is an integrated circuit driven by a single channel toy DC motor which is designed for low-voltage operated system.

It has H bridge driver and uses the PMOS and NMOS power transistors with low output resistance.

Key Features

  • H bridge driver of internal PMOS/NMOS power switches.
  • Can realize 4 functions (forward、backward、standby、brake) of load motor.
  • Low output impedance.
  • Low standby current (typ.0.1μA).
  • Low static operational current (typ.300μA, VCC=3V).
  • On-chip thermal shut down (TSD) with hysteresis.

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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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UNISONIC TECHNOLOGIES CO., LTD UMD9112 Preliminary ELECTRIC TOY DC MOTOR DRIVE CIRCUIT  DESCRIPTION UTC UMD9112 is an integrated circuit driven by a single channel toy DC motor which is designed for low-voltage operated system. It has H bridge driver and uses the PMOS and NMOS power transistors with low output resistance. Low on-resistance ensures the circuit to consume lower power in operating at a continuous current, and ensures the circuit to operate stably for a long time. UTC UMD9112 has on-chip temperature protection function. When load motor with low internal resistance is in locked rotor, UTC UMD9112 output current will increase momentarily, power dissipation of the circuit will go up sharply, and the chip temperature will soar.