Energy Efficient Innovations

Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

NCV70522DQ: SPI Stepper Driver with Voltage Regulator

Product Description
The NCV70522DQ is a micro-stepping stepper motor driver for bipolar stepper motors. The chip is connected through I/O pins and a SPI interface with an external microcontroller. The NCV70522DQ features an internal current-translation table: it takes the next micro-step depending on the clock signal on the stepping input pin (NXT) and the status of the direction register or input pin (DIR). A reliable current control is achieved using an integrated proprietary PWM algorithm.
The NCV70522DQ includes a so-called Speed and Load Angle (SLA) output, allowing the creation of stall detection algorithms and control loops to adjust torque and speed based on the motor's back electromotive force (BEMF).
The NCV70522DQ is implemented in I2T100 technology, enabling both high voltage analog circuitry and digital functionality on the same chip. The device is fully compatible with automotive voltage and temperature requirements and suited to general purpose stepper motor applications in the automotive, industrial, medical and marine domains.
Features
 
  • Dual H-Bridge for 2 Phase Stepper Motors
  • Programmable Peak-Current up to 1.2 A Continuous (1.5 A Short
    Time), Using a 5Bit Current DAC
  • On-Chip Current Translator
  • SPI Interface
  • Speed and Load-Angle Output
  • 7 Step Modes from Full-Step up to 32 Micro-Steps
  • Fully Integrated Current-Sense
  • PWM Current Control with Automatic Selection of Fast and Slow Decay
  • Low EMC PWM with Selectable Voltage Slopes
  • Active Fly-back Diodes
Selected Electrical Specifications

Product Compliance Status Description Type VM Min (V) VM Max (V) VCC Min (V) VCC Max (V) IO Max (A) IO Peak Max (A) Step Resolution Control Type Feedback Method Current Sense Regulator Output Fault Detection Flyback Protection RDS(on) Typ (Ω) Package Type
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Halide free 
 Active     SPI Stepper Driver with Voltage Regulator                                 SSOP-36 EP 
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Halide free 
 Active     SPI Stepper Driver with Voltage Regulator                                 SSOP-36 EP 
Package Availability
Type
PB free
Standard
SSOP-36 EP x