技术特性

• Operating supply voltage from 13 V to 38 V
• 4 full bridge driver configurable in multi-motor application to drive:
  • 2 DC and 1 stepper motor
  • 4 DC motor
• Bridge 1 and 2 (RDSon = 0.60 Ω) can be configured to work as:
  • Dual full bridge driver
  • Super DC driver
  • 2 half bridge driver
  • 1 super half bridge
  • 2 power switches
  • 1 super power switch
• Bridge 3 and 4 (RDSon = 0.85 Ω) can be configured to work as:
  • Same as bridges 1 and 2, listed above
  • Stepper motor driver: up to 1/16 microstepping
  • 2 buck regulators (bridge 3)
  • 1 super buck regulator
  • Battery charger (bridge 4)
• Power supply management
  • One switching buck regulator
  • One switching regulator controller
  • One linear regulator
  • One battery charger
• Fully protected through
  • Thermal warning and shutdown
  • Overcurrent protection
  • Undervoltage lock-out
• SPI interface
• Programmable watchdog function
• Integrated power sequencing and supervisory functions with fault signaling through serial interface and external reset pin
• Very low power dissipation in shut-down mode (~35 mW)
• Auxiliary features
  • Multi-channels 9 bit ADC
  • 2 operational amplifiers
  • Digital comparator
  • 2 low voltage power switches
  • 3 general purpose PWM generators
  • 14 GPIOs

功能框图