MAX14870 Single Brushed DC Motor Driver Carrier

MAX14870 Single Brushed DC Motor Driver Carrier

CHF7.38

This compact breakout board for Maxim’s MAX14870 motor driver offers a wide operating voltage range of 4.5 V to 36 V and can deliver a continuous 1.7 A (2.5 A peak) to a single brushed DC motor. It features a simple two-pin speed/direction interface and built-in protection against reverse-voltage, under-voltage, over-current, and over-temperature.

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The MAX14870 from Maxim Integrated is a tiny H-bridge motor driver IC that can be used for bidirectional control of one brushed DC motor at 4.5 V to 36 V. It can supply up to about 1.7 A continuously and can tolerate peak currents up to 2.5 A for a few seconds, making it a good choice for small motors that run on a wide range of voltages. The MAX14870 is a great IC, but its small surface-mount package makes it difficult for the typical student or hobbyist to use; the breakout board makes it easy to use with standard solderless breadboards and 0.1″ perfboards. The board ships populated with SMD components, including the MAX14870 and a reverse battery protection circuit.

Features:

  • Single-channel H-bridge motor driver with shoot-through protection and internal free-wheeling diodes (can drive one DC motor)
  • Motor supply voltage: 4.5 V to 36 V
  • Output current: up to 1.7 A continuous (2.5 A peak)
  • No separate logic supply needed; inputs are 3V- and 5V-compatible
  • Simple two-pin DIR/PWM interface (one pin controls direction and another controls speed)
  • Under-voltage lockout and protection against over-current/short-circuit and over-temperature
  • Carrier board adds reverse-voltage protection
  • Active-low fault output indicates over-current or over-temperature condition
  • Surface-mount resistor can optionally be added to enable automatic current limiting
  • Compact size (0.6″×0.5″)

Dimensions:

Size: 0.6″ × 0.5″
Weight: 0.5 g

General specifications:

Motor driver: MAX14870
Motor channels: 1
Minimum operating voltage: 4.5 V
Maximum operating voltage: 36 V
Continuous output current per channel: 1.7 A
Peak output current per channel: 2.5 A
Maximum PWM frequency: 50 kHz
Reverse voltage protection?: Y
PO-2961

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