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A4938EETTR-T The Allegro Microsystems A4938EETTR-T is a 3-phase brushless DC motor pre-driver. It operates within a voltage range of 8.5V to 30V and features a surface mount package.
Mfr Part #:

A4938EETTR-T

Available from 1 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The Allegro Microsystems A4938EETTR-T is a 3-phase brushless DC motor pre-driver. It operates within a voltage range of 8.5V to 30V and features a surface mount package.
✓ Total Stock: 145,500 pcs
$ Price Range: $2.25

A4938EETTR-T Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Flip Electronics ✓
Non-Authorised Inventory information
145,500 pcs
On Request
145500 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

A4938EETTR-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Function
Interface
Motor Type
Mounting Type
Operating Temperature
Output Configuration
Storage Temperature
Supplier Device Package
Supplier Package
Technology
Voltage
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A4938EETTR-T Description

Short technical summary and product information.

The Allegro Microsystems A4938EETTR-T is a complete 3-phase brushless DC (BLDC) motor pre-driver. It provides direct, high-current gate drive for an all N-channel power MOSFET 3-phase bridge. The device integrates three Hall-element inputs, a sequencer for commutation control, fixed off-time pulse width modulation (PWM) current control, and locked-rotor detection.

 

Key electrical specifications include a voltage range of 8.5V to 30V and operation across an ambient temperature range of -40°C to 85°C. The pre-driver supports a Power MOSFET technology and offers a parallel interface for control.

 

This component is supplied in a 28-QFN (5x5) package, designed for surface mounting. It includes internal circuit protection such as undervoltage lockout (UVLO) and thermal shutdown circuitry, along with dead time protection and synchronous rectification for reduced power dissipation.

A4938EETTR-T Quick Information

Product Type: Motor Driver Pre-Driver
Canonical Name: A4938 3-Phase Brushless DC Motor Pre-Driver
Subcategory: Power Management

A4938EETTR-T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

A4938EETTR-T Estimated Pricing

Qty Low High
1+ $2.25 $2.25

Estimated market price range - modelled values for guidance only, not live distributor offers.

A4938EETTR-T Features

  • Drives 6 N-channel MOSFETs.
  • Synchronous rectification for low power dissipation.
  • Internal UVLO and thermal shutdown.
  • Hall element inputs.
  • PWM current limiting.

A4938EETTR-T Applications

  • Used in brushless DC motor control systems.
  • Suitable for general purpose motor commutation.
  • Ideal for industrial and consumer motor drivers.
  • Can drive three-phase BLDC motors.

A4938EETTR-T FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the A4938EETTR-T?

The operating voltage range is 8.5V to 30V.

What package does the A4938EETTR-T come in?

It comes in a 28-VFQFN Exposed Pad package (28-QFN 5x5mm) for surface mount.

What is the operating temperature range?

-40°C to 85°C ambient temperature.

What type of motor is the A4938EETTR-T designed for?

It is designed for brushless DC (BLDC) motors.

What is the output configuration?

Pre-Driver - Half Bridge (3) for three-phase control.

What is the maximum load supply voltage?

38V.

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