STMicroelectronics Micro-Stepping Motor Driver 3.3V-5V 45V 3A HTSSOP-28
Fully integrated STMicroelectronics micro-stepping motor driver. Features 3A output, SPI interface, and HTSSOP-28 package for motor drive control.
The STMicroelectronics Micro-Stepping Motor Driver is a fully integrated solution featuring a motion engine and SPI interface. Realised in advanced analogue mixed signal technology, it is designed for driving two-phase bipolar stepper motors with micro-stepping capabilities.
This driver integrates a dual low RDS(ON) DMOS full bridge, with all power switches equipped with accurate on-chip current sensing circuitry. This allows for non-dissipative current control and robust over-current protection. The digital control core can generate user-defined motion profiles, including acceleration, deceleration, speed, or target position, which are easily programmed through a dedicated register set. All commands and data registers, including those setting analogue values, are transmitted via a standard 5 Mbit/s SPI.
Key Features
- Low RDS(ON) power MOSFETs
- Programmable speed profile and positioning
- Programmable power MOS slew rate
- Up to 1/128 micro-stepping
- Sensorless stall detection
- SPI interface (5 Mbit/s)
- Low quiescent and standby currents
- Programmable non-dissipative over-current protection on high and low-side
- 2-level over-temperature protection
Featuring compact dimensions of 43 mm x 33 mm x 15 mm and weighing just 0.454 grams, this HTSSOP-28 packaged driver is ideal for space-constrained applications requiring precise motor drive control.
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