NCV70522:SPI Stepper Driver with Voltage Regulator

The NCV70522MN 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 NCV70522MN contains a 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 NCV70522MN 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 NCV70522MN is implemented in I2T100 technology, enabling both high voltage analog circuitry and digital functionality on the same chip. The chip is fully compatible with the automotive voltage voltage and temperature requirements and suited to general purpose stepper motor applications in the automotive, industrial, medical and marine domains.

特性

Dual H-Bridge for 2 phase stepper motors
Programmable peak-current up to 1.5 A using a 5-bit 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
Full output protection and diagnosis
Thermal warning and shut-down
Compatible with 5V and 3.3V microcontrollers

终端产品

Automotive headlight position
Flap/valve control in engine management
Folding displays
HVAC and LPG expansion valves

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NCV70522MN003G

Active

AEC Qualified

PPAP Capable

Pb-free

Halide free

SPI Stepper Driver with Voltage Regulator

NQFP-32

560AA

Tube

NCV70522MN003R2G