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℃.
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
Toys
Gaming Machines
Robotics
Point of Sale Devices
Printers
