SLRS065E September   2013  – November 2015 DRV8860

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Handling Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Recommended Output Current
      2. 8.3.2 Daisy Chain Connection
      3. 8.3.3 Protection Circuits
        1. 8.3.3.1 Overcurrent Protection (OCP)
        2. 8.3.3.2 Open Load Detection (OL) - DRV8860 only
        3. 8.3.3.3 Thermal Shutdown (TSD)
        4. 8.3.3.4 Undervoltage Lockout (UVLO)
        5. 8.3.3.5 Digital Noise Filter
    4. 8.4 Device Functional Modes
      1. 8.4.1 Internal Registers
    5. 8.5 Programming
      1. 8.5.1 Serial Control Interface
        1. 8.5.1.1 Data Writing Waveform
        2. 8.5.1.2 Fault Register Reading Waveform
        3. 8.5.1.3 Special Command
          1. 8.5.1.3.1 Special command: Write Control Register
          2. 8.5.1.3.2 Special command: Read Control Register
          3. 8.5.1.3.3 Special command: Read Data Register
          4. 8.5.1.3.4 Special command: Fault Register Reset
          5. 8.5.1.3.5 Special command: PWM Start
        4. 8.5.1.4 Output Energizing and PWM Control
          1. 8.5.1.4.1 PWM Start Special Command Used
    6. 8.6 Register Maps
      1. 8.6.1 Data Register
      2. 8.6.2 Fault Register
      3. 8.6.3 Control Register
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Drive Current
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply and Logic Sequencing
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Consideration
      1. 11.3.1 Power Dissipation
      2. 11.3.2 Heatsinking
  12. 12Device and Documentation Support
    1. 12.1 Community Resources
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • 8-Channel Protected Low-side Driver
    • Eight NMOS FETs with Overcurrent Protection
    • Integrated Inductive Catch Diodes
    • Serial Interface
    • Open/Short Load Detection (DRV8860 only)
    • Configurable 100% Output Timing
    • Configurable PWM Duty Cycle
  • Continuous Current Driving Capability
    • 560 mA (Single Channel on) PW and PWP
    • 200 mA (8 Channels on) PW
    • 330 mA (8 Channels on) PWP
    • Support Parallel Configuration
  • 8 V to 38 V Supply Voltage Range
  • Input Digital Noise Filter for Noise Immunity
  • Internal Data Read Back Capability for Reliable Control
  • Protection and Diagnostic Features
    • Overcurrent Protection (OCP)
    • Open Load Detection (OL)
    • Overtemperature Shutdown (OTS)
    • Undervoltage Lockout (UVLO)
    • Individual Channel Status Report
    • Fault Condition Alarm

2 Applications

  • Relays, Unipolar Stepper Motors
  • Solenoids, Electromagnetic Drivers
  • General Low-side Switch Applications
  • LED driver with dimmer functionality (DRV8860A)

3 Description

The DRV8860 provides an 8-channel low side driver with overcurrent protection and open/shorted load detection. It has built-in diodes to clamp turn-off transients generated by inductive loads, and can be used to drive unipolar stepper motors, DC motors, relays, solenoids, or other loads.

The PWP package can supply up to 330 mA × 8 channel and The PW package can supply up to 200 mA × 8 channel continuous output current. A single channel can deliver up to 560 mA continuous output current.

A serial interface is provided to control the DRV8860 output drivers, configure internal setting register and read the fault status of each channel. DRV8860 devices can be daisy-chained together to use a single serial interface. Energizing-time and holding-PWM-Duty cycles are configurable through serial interface as well. These functions allow for cooler running than always-on solutions.

Internal shutdown functions are provided for overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature. DRV8860A does not include open load detection. Fault information for each channel can be read out through serial interface and indicated by an external fault pin.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
DRV8860 TSSOP (16) 5.00 mm × 6.40 mm
HTSSOP (16) 5.00 mm × 4.40 mm
DRV8860A TSSOP (16) 5.00 mm × 6.40 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

4 Simplified Schematic

DRV8860 DRV8860A Simplified_schematic_slar065.gif
DRV8860 DRV8860A FPGraph_slrs065.gif