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34921 - Configurable Motor Driver IC

Description

Table 1.

Features

  • Two Functionally Identical Pulse-Width Modulated (PWM) DC Motor Drivers.
  • One Switching, One Linear, and One Dual-Mode Regulator.
  • Dual Mode Switching/Linear 5.0 V Regulator.
  • Supervisory Functions (Power-ON Reset and Error Reset Circuitry).
  • 8-Channel, 8-Bit Analog-to-Digital Converter (ADC).
  • Charge Pump for High-Side MOSFET Drive.
  • Complete Support for.
  • Analog Quadrature Encoder.
  • Pb-Free package is designated by suffi.

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www.DataSheet4U.com Freescale Semiconductor Technical Data MC34921 Rev 5.0, 07/2005 Configurable Motor Driver IC with Power Supplies The 34921 power IC integrates multiple motor drivers, multiple power regulators, and most other analog functions a small consumer motion-enabled product needs. The 34921’s circuitry is fully protected with current limiting, short-circuit shutdown, over-temperature, overvoltage, and under-voltage detection. Supervisory functions can be read and programmed through a 8-MHz Serial Interface. A 5.0 V dual-mode (linear or switching) voltage regulator, 3.3 V switching buck regulator, and a voltage-selectable (1.5 V, 1.8 V, 2.5 V) linear regulator provide power management.