A3946KLB

$1.56

Description：IC MOTOR DRIVER 7V-60V 16SOIC
Series：-
Mfr：Allegro MicroSystems
Package：Tube

SKU:93d91d565baf Category: Motor Drivers, Controllers Brand: Allegro MicroSystems

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Product introduction

Product Detailed Parameters

Description：IC MOTOR DRIVER 7V-60V 16SOIC
Series：-
Mfr：Allegro MicroSystems
Package：Tube
Motor Type - Stepper：-
Motor Type - AC, DC：Brushless DC (BLDC)
Function：Controller - Commutation, Direction Management
Output Configuration：Pre-Driver - Half Bridge
Interface：Parallel
Technology：Power MOSFET
Step Resolution：-
Applications：General Purpose
Current - Output：-
Voltage - Supply：7V ~ 60V
Voltage - Load：-
Operating Temperature：-40°C ~ 135°C (TA)
Mounting Type：Surface Mount
Package / Case：16-PowerSOIC (0.295", 7.50mm Width)
Supplier Device Package：16-SOIC
Grade：-
Qualification：-

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A3946KLB

Overview

The A3946KLB is a half-bridge power MOSFET controller manufactured by Allegro MicroSystems. It operates within a supply voltage range of 7V to 60V and supports brushless DC (BLDC) motor applications. The device provides commutation and direction management functions via a parallel interface. It is housed in a 16-PowerSOIC package with dimensions of 0.295 inches (7.50mm) width. The component is rated for an operating temperature range from -40°C to 135°C (TA).

Feature Summary

Integrated half-bridge power MOSFET controller designed for robust motor drive applications.
Provides dedicated control logic for commutation sequencing and rotational direction management.
Supports parallel digital interfaces for straightforward integration with microcontroller systems.

Applications

Brushless DC (BLDC) motor commutation
General purpose motor control systems
Direction management circuits

Procurement Notes

Verify the specific suffix requirements for the final order, as the base part number may correspond to legacy or non-standard packaging configurations. Confirm RoHS compliance status, as historical data indicates variations between leaded and lead-free versions within the A3946 family. Ensure the selected variant matches the required tape and reel specifications for automated assembly processes.

Selection Notes

Select this component when a dedicated half-bridge controller is required for BLDC motors operating up to 60V. The 16-PowerSOIC package offers a balance of thermal performance and board space efficiency. Consider the parallel interface constraints if complex PWM signals are needed, as this model focuses on basic commutation rather than advanced analog modulation.

Part Context

The A3946 series represents Allegro MicroSystems' solution for driving external power MOSFETs in motor applications. This specific variant utilizes the PowerSOIC footprint, distinguishing it from TSSOP-based counterparts like the A3946KLPTR-T. The family is engineered for reliability in automotive and industrial environments, providing essential gate drive capabilities without integrating the high-current output stage itself.