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SI9979 Datasheet 3-Phase Brushless DC Motor Controller

Manufacturer: Vishay

Overview: End of Life. Last Available Purchase Date is 31-Dec-2014 Si9979 Vishay Siliconix 3-Phase Brushless DC Motor.

Datasheet Details

Part number SI9979
Manufacturer Vishay
File Size 314.70 KB
Description 3-Phase Brushless DC Motor Controller
Download SI9979 Download (PDF)

General Description

The Si9979 is a monolithic brushless dc motor controller with integral high-side drive circuitry.

The Si9979 is configured to allow either 60 or 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 PWM Input Quadrature Selection Tachometer Output Reversible Braking Output Enable Control Cross Conduction Protection Current Limiting Undervoltage Lockout Internal Pull-Up Resistors.

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