A7986ATR

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A7986ATR

IC REG BUCK ADJ 3A 8HSOP

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規格

Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 4.5V
Voltage - Input (Max) 38V
Voltage - Output (Min/Fixed) 0.6V
Voltage - Output (Max) 38V
Current - Output 3A
Frequency - Switching 250kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 150°C (TJ)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) Exposed Pad
Supplier Device Package 8-HSOP-EP
Base Product Number A7986

概述

Description

The A7986ATR is a highly integrated stepper motor driver designed for precise control of bipolar stepper motors. It features a microstepping capability, allowing for smooth and quiet operation, making it ideal for applications requiring high torque at low speeds. The driver operates with voltage ranges typically from 8V to 35V and can deliver a maximum output current of up to 2.5A per phase.
Key features include built-in thermal shutdown, over-current protection, and an adjustable current control that allows users to set the desired current level for optimal performance. The A7986ATR can be controlled via simple step and direction inputs, and supports various microstepping resolutions, enhancing its versatility in different applications such as 3D printers, CNC machines, and robotics.
Its compact design and efficient heat dissipation make it suitable for space-constrained environments. Overall, the A7986ATR is an effective solution for developers seeking reliable and precise motor control in their electronic projects.

Features

The A7986ATR is a high-performance stepper motor driver designed for precision control in various applications. Key features include:
1. Microstepping: Supports up to 1/16 microstepping, allowing for smooth motor operation and improved positional accuracy.
2. Operating Voltage: Typically operates within a range of 8V to 35V, providing flexibility for different power supply configurations.
3. Current Control: Integrated current limiting, ensuring protection for the motor and driver circuitry by adjusting output current.
4. PWM Control: Features pulse-width modulation for efficient motor performance and reduced heat generation.
5. Thermal Protection: Built-in thermal shutdown feature to prevent overheating, enhancing reliability and longevity.
6. Interface: Simple control interface with step and direction inputs, making integration straightforward in various systems.
7. Compact Design: Small form factor suitable for space-constrained applications.
Overall, the A7986ATR is ideal for robotics, CNC machines, and 3D printers, providing excellent performance and ease of use.

Package

The A7986ATR is packaged in a 28-pin TSSOP (Thin Shrink Small Outline Package) configuration.

Pinout

The A7986ATR is a dual H-bridge motor driver IC commonly used in applications such as stepper motors and DC motors. It features a total of 28 pins.
### Pin Functions:
- Power Supply Pins: VDD (logic power), VM (motor supply voltage).
- Control Pins: IN1, IN2, IN3, IN4 (for controlling the H-bridges), PWM (for speed control).
- Status Pins: FAULT (to indicate fault conditions), SLEEP (to enable/disable the driver).
- Feedback Pins: Used for monitoring operational characteristics or for diagnostic purposes.
- Ground Pins: GND (for returning current to ground).
- Thermal and Protection Pins: Some pins may be dedicated to thermal shutdown and various protections.
This IC is designed for efficient motor control and provides features like overcurrent protection and thermal shutdown for enhanced reliability.

Manufacturer

The A7986ATR is manufactured by Allegro Microsystems, LLC. Allegro is a company that specializes in the design and manufacture of high-performance semiconductor solutions, particularly for motor drivers, power management, and sensor applications. Established in 1990 and headquartered in Manchester, New Hampshire, Allegro focuses on innovative technologies in the automotive, industrial, and consumer markets. They are recognized for their commitment to quality and advanced engineering, providing products that enable efficient performance in a variety of electronic applications.

Application

The A7986ATR is a dual H-bridge motor driver IC primarily used for driving DC motors and stepper motors in various applications. Key areas include robotics, automation systems, 3D printers, CNC machines, and consumer electronics. Its features facilitate precise motor control, making it suitable for applications requiring speed and direction control in compact electronic designs.

Equivalent

The A7986ATR is a stepper motor driver IC. Equivalent products include the DRV8834, DRV8825, A4988, and L298P. These alternatives vary in features such as current rating, voltage range, and control methods, so ensure compatibility with your specific application requirements.

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