Overview

Features and Benefits

  • 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

Product Details

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

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Reference Designs (1)

Product Recommendations

MAX14871 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

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