AMT49702: Dual DMOS Full-Bridge Motor Driver

Description

This device is in production, however, it has been deemed Pre-End of Life. The product is approaching end of life. The device will start its final Last Time Buy order phase on January 1, 2020, with final orders by June 30, 2020.

Date of status change: August 1, 2019.

Recommended Substitutions: For existing customer transition, and for new customers or new applications, refer to A4992. 

Designed for pulse-width-modulated (PWM) control of lowvoltage stepper motors and single and dual DC motors, the AMT49702 is capable of output currents up to 1 A per channel and operating voltages from 3.5 to 15 V.

The AMT49702 is an automotive-grade device and is tested across extended temperature and voltage ranges to ensure compliance in automotive or industrial applications.

The AMT49702 has an internal fixed off-time PWM timer that sets a peak current based on the selection of a current sense resistor. An output fault flag is provided that notifies the user of a TSD or overcurrent protection event.

The AMT49702 is supplied in a low-profile 16-lead TSSOP (suffix “LP”) with exposed power tab for enhanced thermal dissipation.

Top Features

  • AEC-Q100 Grade 1 qualified
  • Wide, 3.5 to 15 V input voltage operating range
  • Dual DMOS full-bridges: drive two DC motors or one stepper motor
  • Low RDS(ON) outputs
  • Synchronous rectification for reduced power dissipation
  • Low-current sleep mode
  • Overcurrent protection
  • Internal UVLO and thermal shutdown circuitry
  • Integrated charge pump

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check Stock
AMT49702KLPATR 16-lead TSSOP -40°C to 125°C Yes View Data pre-EOL Contact your
local sales rep
Check
Distributor Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

Packaging

AMT49702 Packages