GENERAL DEscriptION

The SGM42622B is a low voltage stepper motor driver with control logic and low RDSON MOSFET power stages all integrated in a small TQFN package.

This device uses fixed off-time PWM current control for two independent H-bridges and is capable for fine microstepping resolution up to 1/256. Aimed for battery- powered applications, it can go to near zero-power standby mode for increased battery life.

A full set of protection features are provided including over-current, short-circuit, and thermal shutdown.

The SGM42622B is available in a Green TQFN-3×3-16L package. It operates over an ambient temperature range of -40℃ to +85℃.

FEATURES

• Motor Power Supply Voltage Range: 1.8V to 12V

• 1.3A Maximum RMS Output Current

• Low RDS(ON): 0.5Ω (HS + LS) at +25℃

• Up to 1/256 Microstepping Resolution

• Adaptive Mixed Current Decay Modes

• Programmable Off-Time

• Full Set of Protections

  Lossless Over-Current Protection

  Short-Circuit Protection

  Thermal Shutdown

• Less than 80nA Standby Current for Long Battery Life

• -40℃ to +85℃ Operating Temperature Range

• Available in a Green TQFN-3×3-16L Package

APPLICATIONS

Toys

Gaming Machines

Robotics

Point of Sale Devices

Printers