Products Overview
A5931 THREE PHASE SENSORLESS FAN DRIVERS
Allegro MicroSystems
A5931 and A5931-3:Three Phase Sensorless Fan Drivers
The A5931 is a three phase sensorless BLDC fan driver IC that incorporates sinusoidal drive to minimize audible noise and vibration.
The A5931-3 is the latest in the family with a new feature that allows user to adjust deceleration speed from Force Open Loop to Close Loop.
A flexible closed-loop speed control system is integrated into the IC. This eliminates the requirement for a microprocessor-based system and minimizes programming requirements.
The A5931 devices are available in both commercial and automotive grade.
| Part Number | Type | Output Current | Topology | Mounting Style | Operating Frequency | Moisture Sensitive | Number of Outputs | Maximum Frequency | Operating Temperature | Voltage - Supply | Package Type |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A5931 | 3 Phase | 3A | Step-Down (Buck) | 3 Output | 24.4 kHz | Yes | Lighting | - | -40 °C ~ 105 °C(TA) | 5V ~ 16V | 16-lead TSSOP with exposed thermal pad (LP package), 24-contact 4×4mm QFN with exposed thermal pad (suffix ES) |
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Datasheet Download on Nov, 2021
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Devoted to Excellent Professional Technical Support Throughout the Supply Chain
Everstar currently serves global semiconductor brands, including Allegro, AOS, Vincotech, and SHARP photocoupler, to offer products with complementary features. The products we carried integrate magnetic sensor chips, motor driver chips, power components, power modules, etc., to offer an extensive hardware infrastructure system design solution. The product applications focus on cloud server power suppliers, server cooling fan motor drivers, automotive power supply systems, LED lights, industrial motors, etc., targeted to broadly cover our customers' needs.
