SI9979 Datasheet (Vishay Siliconix) - 3-Phase Brushless DC Motor Controller

SI9979, 3-Phase Brushless DC Motor Controller

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.

The Si9979 provides co

SI9979 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 DESCRIP