MAXREFDES89# by Analog Devices

4.5V to 36V Full-Bridge DC Motor Driver


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.

Where to Buy

Prices starting from US$20.51

Distributor Stock
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Farnell
from US$60.57
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Newark Electronics
from US$20.51
5
in stock
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element14
from US$64.26
-
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Features

Drive More Power and Reduce Footprint Up to 2.8A Peak Motor-Current Package Flexible 4.5V–36V Supply Enables Longer Runtime
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
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
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
Short-Circuit-Protected Drivers
Thermal Shutdown Undervoltage Lockout
Diagnostic Active-Low FAULT Output
-40°C to +85°C Temperature Range

Specifications

Peak Motor Current (A) 2.8
VSUPPLY (V) (min) 4.5
VSUPPLY (V) (max) 36
Total RON (mΩ) (typ) 334
ISUPPLY (mA) (typ) 1
ICC (Shutdown) (µA) (max) 10
Direction Control DIR
Current Regulation 25% RippleExternalFastInternalSlow
Internal CR Reference Yes
Oper. Temp. (°C) -40 to +85
Package/Pins TSSOP/16
BudgetaryPrice (See Notes) 2.01


MAXREFDES89# Power Management Development Kits by Analog Devices

REF DESIGN BOARD DC MOTOR DRIVER

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Silicon Manufacturer Maxim Integrated Products
Silicon Core Number MAX14871
Kit Application Type Motor Control
Application Sub Type Motor Driver
Core Architecture -
Core Sub-Architecture -
Silicon Family Name -
Kit Contents Ref Design Board MAX14871
Product Range -
SVHC No SVHC (15-Jan-2018)
Features Full-Bridge DC Motor Driver Robust with Short Circuit Protection Four motor drivers 7-36V Supply

Alternative Descriptions

Ref Board, Dc Motor Driver Mbed Shield | Newark Electronics
REF DESIGN BOARD, DC MOTOR DRIVER | Farnell

Frequently Asked Questions

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Is the MAXREFDES89# RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for MAXREFDES89# .

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