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