A4955GESTR-T Allicdata Electronics

A4955GESTR-T Integrated Circuits (ICs)

Allicdata Part #:

620-1769-2-ND

Manufacturer Part#:

A4955GESTR-T

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Allegro MicroSystems, LLC
Short Description: IC DC MOTOR CNTRL PAR 20QFN
More Detail: Motor Driver NMOS Parallel 20-QFN-EP (4x4)
DataSheet: A4955GESTR-T datasheetA4955GESTR-T Datasheet/PDF
Quantity: 13500
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL): 2 (1 Year)
Stock 13500Can Ship Immediately
Specifications
Series: --
Packaging: Tape & Reel (TR) 
Lead Free Status / RoHS Status: --
Part Status: Active
Moisture Sensitivity Level (MSL): --
Motor Type - Stepper: --
Motor Type - AC, DC: Brushed DC
Function: Controller - Commutation, Direction Management
Output Configuration: Pre-Driver - Half Bridge (2)
Interface: Parallel
Technology: NMOS
Step Resolution: --
Applications: General Purpose
Current - Output: --
Voltage - Supply: 5.5 V ~ 50 V
Voltage - Load: --
Operating Temperature: -40°C ~ 105°C (TA)
Mounting Type: Surface Mount
Package / Case: 20-WFQFN Exposed Pad
Supplier Device Package: 20-QFN-EP (4x4)
Description

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The A4955GESTR-T integrated circuit, more commonly referred to as the A4955, is a member of the A4955 family of motor drivers, controllers, and power management integrated circuits. It is designed to handle a wide variety of motor control applications, including brushless DC motors, stepper motors, and brushed DC motors. In addition, the A4955 can control the power supply voltage for other components within a system, such as LED lighting, LCD displays, and audio systems.The A4955GESTR-T utilizes a gate driver to directly control the power MOSFETs that drive the motor windings. This reduces complexity and minimizes board space requirements. In addition, the A4955GESTR-T has inbuilt current sensing to control the motor current and provide smooth control.The A4955 operates on a voltage range of 4.5V to 32V, allowing it to be used in a wide variety of applications. The device also features protection features to help protect it from damage, such as over-temperature, over-voltage, and short circuit protection.The A4955GESTR-T operates in three modes: step/dir mode, analog mode, and pulse/dir mode. In step/dir mode, the user can specify the motor speed and direction with two digital control pins. In analog mode, the user can specify the motor speed with an analog voltage input. In pulse/dir mode, the user can specify the motor speed and direction using pulse-width modulation (PWM) input signals.The A4955GESTR-T also includes an on-chip transconductance amplifier. This amplifier allows the user to set the current limit and enable the current control loop. The current limit is set using a single resistor, simplifying the design process.In addition, the A4955GESTR-T includes on-chip diagnostic circuitry, which allows users to monitor the motor’s health and fault conditions. The diagnostic features help reduce downtime caused by unexpected motor faults.The A4955GESTR-T comes in a Pb-free, 16-lead TSSOP package. This package is easy to solder and provides a low-profile solution that is ideal for space-constrained applications.In summary, the A4955GESTR-T integrated circuit is a highly configurable motor driver, controller, and power management integrated circuit. It can be used to control a variety of motors, such as brushless DC motors, stepper motors, and brushed DC motors. It operates on a wide range of voltages and includes current control and diagnostic circuitry to help ensure reliable and safe operation. Finally, it comes in a small, easy-to-solder TSSOP package that makes it ideal for space-constrained applications.

The specific data is subject to PDF, and the above content is for reference

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