Description
A5931GLPTR-T Allegro MicroSystems Motor Driver Three Phase Sinusoidal Fan Driver, 16-lead TSSOP RoHS
The A5931 three phase motor driver incorporates
Sensorless sinusoidal drive to minimize vibration for high
speed server fans. Sensorless control eliminates the
requirement for hall sensors for server Fan applications.
A Flexible Closed loop speed control system is integrated
into the IC. EEPROM is used to tailor the common functions
of the fan speed curve to a specific application. This
eliminates the requirement for a microprocessor based
system and minimizes programming requirements.
The A5931 is available in a 24L 4×4 QFN with exposed
power pad, (suffix ES), and a 16L SOIC with exposed
power pad (suffix LP)
FEATURES AND BENEFITS
Closed Loop Speed Control
Speed Curve Configuration via EEPROM
I2C Serial port
Sinusoidal modulation for Reduced Audible Noise and
Low vibration
Sensorless (No Hall Sensors required)
Low RDSON Power MOSFETs 3A capability
Minimal External Components
PWM Speed Input
FG Speed Output
RD Rotor Lock Output
Lock Detection
Soft Start
Standby Mode
Overcurrent Protection
Manufacturer:Allegro
Datasheet:Others/A5936GLKTR.pdf
