A3941KLPTR-T The Allegro Microsystems A3941KLPTR-T is a full-bridge controller designed for automotive applications with high-power inductive loads. It operates from a 5.5V to 50V supply range.
Mfr Part #:

A3941KLPTR-T

Available from 2 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The Allegro Microsystems A3941KLPTR-T is a full-bridge controller designed for automotive applications with high-power inductive loads. It operates from a 5.5V to 50V supply range.
Total Stock: 23,516 pcs
$ Price Range: $2.25

A3941KLPTR-T Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
20,000 pcs
20000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
3,516 pcs
3516 pcs On Request 1 On Request On Request 10+ On Request On Request

A3941KLPTR-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Automotive Grade
Function
Interface
Motor Type
Mounting Type
Operating Temperature
Output Configuration
Storage Temperature
Supplier Device Package
Supplier Package
Tape & Reel
Technology
Voltage

A3941KLPTR-T Description

Short technical summary and product information.

The A3941KLPTR-T from Allegro Microsystems is a full-bridge controller specifically engineered for automotive applications utilizing external N-channel power MOSFETs to drive high-power inductive loads, such as brush DC motors.

 

This driver features a wide supply voltage range of 5.5V to 50V, supported by a unique charge pump regulator that provides full gate drive even at battery voltages as low as 7V. It allows for DC (100% duty cycle) operation through an internal charge pump for the high-side drive. The device supports fast or slow decay modes with diode or synchronous rectification, and includes resistor-adjustable dead time for shoot-through protection.

 

Integrated diagnostics offer indications for undervoltage, overtemperature, and power bridge faults, enhancing protection capabilities. The A3941KLPTR-T is supplied in a 28-pin TSSOP power package with an exposed thermal pad, suitable for surface mounting. The package is lead-free with 100% matte-tin leadframe plating.

A3941KLPTR-T Quick Information

Product Type: Motor Driver
Canonical Name: A3941KLPTR-T Automotive Full Bridge MOSFET Driver
Subcategory: Full Bridge MOSFET Driver

A3941KLPTR-T Compliance

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

A3941KLPTR-T Estimated Pricing

Qty Low High
1+ $2.25 $2.25

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

A3941KLPTR-T Features

  • Automotive full-bridge MOSFET driver.
  • Wide 5.5V to 50V supply voltage range.
  • PWM interface for control.
  • Integrated diagnostics for fault indication.
  • 28-pin TSSOP package with exposed pad.

A3941KLPTR-T Applications

  • Ideal for brush DC motor control.
  • Suitable for automotive applications.
  • Drives high-power inductive loads.
  • Supports fast or slow decay modes.

A3941KLPTR-T FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the A3941KLPTR-T?

The A3941KLPTR-T operates from 5.5V to 50V.

What is the operating temperature range of the A3941KLPTR-T?

The operating temperature range is -40°C to 150°C.

What package is the A3941KLPTR-T available in?

The A3941KLPTR-T is available in a 28-TSSOP (0.173", 4.40mm Width) Exposed Pad package.

Does the A3941KLPTR-T have an integrated voltage regulator?

Yes, it integrates a 5V regulator.

What type of motor does the A3941KLPTR-T drive?

It drives brushed DC motors.

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