SLVS854E July   2008  – December 2014 DRV8809

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Handling Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Serial Interface
        1. 7.3.1.1 Setup Mode/Power-Down Mode
        2. 7.3.1.2 Extended Setup Mode
        3. 7.3.1.3 Serial Interface Timing
        4. 7.3.1.4 Bipolar Current Regulated Stepper Motor Drive
        5. 7.3.1.5 Short/Open for Motor Outputs
        6. 7.3.1.6 DCDC_MODE for Parallel-Mode Control
        7. 7.3.1.7 DCDC_MODE and C_SELECT Timing Delay and Start-Up Order
        8. 7.3.1.8 In-Reset: Input for System Reset
        9. 7.3.1.9 Blanking Time Insertion Timing for DC Motor Driving
      2. 7.3.2 Motor Driver Configuration
      3. 7.3.3 Charge Pump
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation With 7 V < VM and VDIN < 18 V
      2. 7.4.2 Operation With 18 V ≤ VM and VDIN ≤ 40 V
    5. 7.5 Register Maps
      1. 7.5.1 Setup Register Bit Assignment
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Output Voltage for Each DC-DC Converter
        2. 8.2.2.2 Output Voltage Startup Sequence
        3. 8.2.2.3 Motor Configuration
        4. 8.2.2.4 External Rsense-Motor Current Setting for Stepping Motor
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Related Links
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

1 Features

  • Configurable to Eight Modes of Combination Motor Driver
    • Bipolar Stepper Motor Driver
      • 16-Step Current-Mode Control
      • 800-mA Average Output Current as Stepper Motor Drive
    • DC Motor Driver
      • 800-mA Maximum Continuous Current and 8-A/500-ns or 3-A/100-ms Peak Current for Each DC Motor Drive
    • Low ON resistance Rds(ON) = 0.55 Ω at TJ = 25°C (Typ)
  • Three Integrated DC-DC Converters
    • On/Off Selectable Using C_SELECT Pin and Serial Interface
    • Outputs Programmable With External Resistor Network From 1.5 V to VDIN × 0.8
    • 1.5-A Output Capability for All Three Channels
  • 7-V to 40-V Operating Voltage Range for DC-DC Converters
  • Two Serial Interfaces for Communications
  • Thermally Enhanced Surface-Mount 64-Pin QFP PowerPAD™ Package
    (Eco-Friendly – RoHS and No Sb/Br)
  • Power-Down Function (Deep-Sleep Mode)
  • Reset Signal Output (Active Low)
  • Reset (All Clear) Control Input

2 Applications

  • Printers
  • Document Scanners
  • POS
  • Copiers

3 Description

The DRV8809/DRV8810 provides an integrated motor driver solution. The chip has four H-bridges internally and is configurable to eight different modes of combination motor driver control.

The output driver block for each H-bridge consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings. The stepper motor control has a 16-step mode programmable through the 3-wire serial interface (SPI). The SPI input pins are 3.3-V compatible and 5-V tolerant.

The DRV8809/DRV8810 has three DC-DC switch-mode buck converters to generate a programmable output voltage from 1.5 V to 80% of VDIN (channel A) or up to 10 V (for channel B and channel C), with up to 1.5-A load current capability. The outputs are selected using the C_SELECT terminal at start-up or using serial interface during operation.

An internal shutdown function is provided for overcurrent protection (OCP), short-circuit protection, overvoltage/undervoltage lockout (UVLO), and thermal shutdown (TSD). Also, the device has a reset function that operates at power on and at input to the In-Reset pin.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
DRV8809 HTQFP (64) 10.00 mm x 10.00 mm
DRV8810
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Block Diagram

bd_2_lvs854.gif

RdsON vs Idrain

D001_SLVS854.gif