MAX14871
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MAX14871

4.5V to 36V Full-Bridge DC Motor Driver

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Industry’s Simplest and Most Flexible 4.5 to 36V DC-Brushed Motor Driver

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.15
Features
  • Drive More Power and Reduce Footprint
    • Up to 2.8A Peak Motor-Current Package
    • Flexible 4.5V–36V Supply Enables Longer Runtime
  • Low Power Consumption Runs Cooler and Longer
    • 334mΩ (typ) Total Bridge On-Resistance
    • 1mA (typ) Supply Current at 30kHz/24V
    • 10µA (max) Standby Current at 12V
  • Simplified Designs Reduces Time to Market
    • Charge-Pump-Less Architecture
    • Current Regulation Only Requires a Sense Resistor
    • Current-Sense Input Simplifies PCB Layout
    • Internal/External VREF for Current Regulation
    • Fast/Slow/25% Ripple Current Regulation Modes
  • Integrated Protection Provides Robust Driving Solutions
    • Short-Circuit-Protected Drivers
    • Thermal Shutdown Undervoltage Lockout
    • Diagnostic Active-Low FAULT Output
    • -40°C to +85°C Temperature Range
Additional Details
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The MAX14871 DC motor driver provides a low-power and simple solution for driving and controlling brushed motors with voltages between 4.5V and 36V. Very low driver on resistance reduces power during dissipation.

The MAX14871 features a charge-pump-less design for reduced external components and low supply current. Integrated current regulation allows user-defined peak startup motor currents and requires minimal external components.

The MAX14871 includes 3 modes of current regulation: fast decay, slow decay, and 25% current ripple modes. Current regulation based on 25% ripple simplifies the design and enables regulation independent of motor characteristics. A separate voltage sense input (SNS) reduces current-sensing errors due to parasitic trace resistance.

The MAX14871 features shoot-through protection and internal free-wheeling diodes that absorb inductive motor currents. Driver outputs are short-circuit-protected from shorts to ground, to the supply, and between M1 and M2. An active-low FAULT output signals thermal overload and overcurrents during fault conditions.

The MAX14871 is available in a 16-pin TSSOP-EP package and operates over the -40°C to +85°C temperature range.

Applications

  • Industrial Automation
  • Printers and Scanners
  • Vending and Gaming Machines
Part Models 2
1ku List Price Starting From $2.15

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX14871EUE+
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MAX14871EUE+T
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Part Models

Product Lifecycle

PCN

Dec 11, 2018

- 1754N

ASSEMBLY

MAX14871EUE+

PRODUCTION

MAX14871EUE+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Dec 11, 2018

- 1754N

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ASSEMBLY

MAX14871EUE+

PRODUCTION

MAX14871EUE+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX14871EVKIT

Evaluation Kit for MAX14871

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MAX14871EVKIT

Evaluation Kit for MAX14871

Evaluation Kit for MAX14871

Features and Benefits

  • Operates From a Wide 4.5V to 36V Supply
  • Standalone or Software-Controlled Operation
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX14871 evaluation kit (EV kit) consists of a MAX14871 evaluation board. The EV kit is a fully assembled and tested circuit board that evaluates the MAX14871 full-bridge DC motor driver

The EV kit is designed to work as either a stand-alone board or with a software interface, demonstrating all of the major features of the device.

Applications

  • Industrial Automation
  • Printers and Scanners
  • Vending and Gaming Machines
Reference Designs

Reference Designs 1

MAXREFDES89

MAX14871 Full-Bridge DC Motor Driver mbed Shield

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MAXREFDES89

MAX14871 Full-Bridge DC Motor Driver mbed Shield

MAX14871 Full-Bridge DC Motor Driver mbed Shield

Features and Benefits

Features

  • 7V to 36V supply voltage range
  • On-board DC-DC for supplying VIN to mbed board
  • mbed library available
  • 2A (max) current regulation limit per motor driver
  • Four motor drivers available
  • Arduino shield form factor

Competitive Advantages

  • Safe with 25% ripple current regulation flexible with wide supply voltage range
  • Saves power with Low RON
  • Robust with short-circuit protection to GND/VCC
View Detailed Reference Design external link

Design & Integration Tools

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