L99SM81V

L99SM81V Programmable stepper motor driver for automotive applications with micro-stepping and stall detection Datasheet - Production data Features  AEC-Q100 qualified  Stepper motor driver with up to 1.35 A current capability  Programmable Step mode:  Full step, Half step, Mini step, 1/8 Micro step, 1/16 Micro step  Current regulation by integrated PWM control with fully integrated current sensing  Equivalent 10 bit resolution on current regulation loop:  Two 4-bit programmable full scale current amplitudes: one for RUN and one for HOLD mode  6-bit DAC for reference current generation (whatever programmed full scale amplitude)  4 programmable decay modes:  Slow-mode, mixed-mode and 2x automatically selected decay-modes  3x programmable inputs for direct control of step clock, direction, hold and step modes  1x programmable analog output for Tj measurement or band-gap reference  2x programmable digital outputs for internally generated PWM ON duty cycles, error signals, coils voltage measurement synchronization signals  Programmable MOSFETs switching speed: four options for EMC and power dissipation trade-off optimization  PWM frequency wobbling for reduction of conducted EM energy  Outputs protection and diagnosis (open load, short to battery, short to GND)  Integrated ADC for coil voltage measurement and stall detection  5 V low drop voltage regulator short-circuit protected  Very low current consumption in standby mode (typ. 10 µA)  Thermal warning an...