DRV8840 的特性

• Single H-Bridge Current-Control Motor Driver
• 8.2-V to 45-V Operating Supply Voltage Range
• Five Bit Current Control Allows up to 32 Current
  Levels
• Low MOSFET RDS(on) Typical 0.65 Ω (HS + LS)
• 5-A Maximum Drive Current at 24 V, TA = 25°C
• Built-In 3.3-V Reference Output
• Parallel Digital Control Interface
• Thermal Enhanced Surface Mount Package
• Protection Features:
  • Overcurrent Protection (OCP)
  • Thermal Shutdown (TSD)
  • VM Undervoltage Lockout (UVLO)
  • Fault Condition Indication Pin (nFAULT)

DRV8840 的说明

The DRV8840 provides an integrated motor driver solution for printers, scanners, and other automated equipment applications. The device has one H-bridge driver, and is intended to drive one DC motor. The output driver block for each consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings. The DRV8840 can supply up to 5-A peak or 3.5-A output current (with proper heatsinking at 24 V and 25°C).

A simple parallel digital control interface is compatible with industry-standard devices. Decay mode is programmable to allow braking or coasting of the motor when disabled.

Internal shutdown functions are provided for overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature.

The DRV8840 is available in a 28-pin HTSSOP package with PowerPAD™ (Eco-friendly: RoHS & no Sb/Br).