A5932: Three Phase Sinusoidal Sensorless Fan Controller

Description

The A5932 is a three phase sensorless BLDC fan MOSFET gate driver that incorporates sensorless sinusoidal drive to minimize audible noise and vibration for high power fans.

A sinusoidal voltage profile is applied to the windings of the motor at startup to quietly and gradually ramp up the motor to desired speed.

The motor speed is controlled by applying a duty cycle command to the SPD input. The speed input is allowed to operate over a wide frequency range.

Top Features

  • 180° sinusoidal drive - low audible noise and vibration
  • Motor position using Allegro's sensorless algorithm - eliminates external Hall sensors
  • 5V to 50V operating voltage range - wide operating supply voltage range for variety of applications

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check Stock
A5932GESSR-T 24-lead QFN -40°C to 105°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
A5932GLPTR-T 16-lead TSSOP -40°C to 105°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
A5932KESSR-J 24-lead TSSOP -40°C to 125°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
A5932KLPTR-T 24-lead TSSOP -40°C to 125°C Yes View Data Contact your
local sales rep
Check
Distributor Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

Packaging

A5932 Packages