TI사의 DRV8434A 마이크로스텝핑 바이폴라 스텝모터 드라이버 칩을 탑재하고 있습니다.
4.5V-48V로 동작하며, 방열판 없이 대략 1.2A를 연속적으로 전달할 수 있씁니다.
저전압, 과전류, 과열 보호 기능을 가지고 있는 제품입니다.
특징
4.5 V to 48 V supply voltage range
Can deliver up to 1.2 A continuous per phase without additional cooling (2 A peak)
Built-in regulator (no external logic voltage supply needed)
Can interface directly with 1.8 V, 3.3 V and 5 V systems
Simple step and direction control interface
Eleven different step resolutions: full-step with 100% current, full-step with 70% current, non-circular 1/2-step, 1/2-step, 1/4-step, 1/8-step, 1/16-step, 1/32-step, 1/64-step, 1/128-step, 1/256-step
Adjustable current control lets you set the maximum current output, which lets you use voltages above your stepper motor's rated voltage to achieve higher step rates
Integrated stall detection with three GPIO pins
Ripple control algorithm (decay mode) that allows tight regulation of current level and increased motor efficiency
Over-temperature thermal shutdown, over-current protection, open load detection, under-voltage lockout, and charge pump over-voltage protection
Driver IC integrates spread spectrum clocking of its internal oscillator and charge pump for reduced EMI
4-layer, 2 oz copper PCB for improved heat dissipation
Exposed solderable ground pad below the driver IC on the bottom of the PCB
