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Si9979CS Datasheet 3-Phase Brushless DC Motor Controller

Manufacturer: TEMIC Semiconductors (now Microchip)

Overview: Si9979CS 3-Phase Brushless DC Motor Controller TEMIC Siliconix.

General Description

The Si9979CS is a monolithic brushless dc motor controller with integral high-side drive circuitry.

The Si9979 is configured to allow either 60 0 0r 120° commutation sensor spacing.

The internal low-voltage regulator allows operation over a wide input voltage range, 20- to 40-V dc.

Key Features

  • Hall-Effect Commutation.
  • 60.
  • or 120.
  • Sensor Spacing.
  • Integral High-Side Drive for all N-Channel MOSFET Bridges.
  • PWMInput.
  • Quadrature Selection.
  • Tachometer Output.
  • Reversible.
  • Braking.
  • Output Enable Control.
  • Cross Conduction Protection.
  • Current Limiting.
  • Undervoltage Lockout.
  • Internal Pull-Up Resistors.