SLVSFF0 June   2020 DRV8436E

ADVANCE INFORMATION for pre-production products; subject to change without notice.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
  4. 4 Revision History
  5. 5 Description Continued
  6. 6 Device Options
  7. 7 Pin Configuration and Functions
    1.     Pin Functions
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagrams
    3. 9.3 Feature Description
      1. 9.3.1 PWM Motor Drivers
      2. 9.3.2 Bridge Control
      3. 9.3.3 Current Regulation
      4. 9.3.4 Decay Modes
        1. 9.3.4.1 Slow Decay
        2. 9.3.4.2 Mixed Decay
        3. 9.3.4.3 Fast Decay
        4. 9.3.4.4 Smart tune Dynamic Decay
        5. 9.3.4.5 Blanking time
      5. 9.3.5 Charge Pump
      6. 9.3.6 Linear Voltage Regulators
      7. 9.3.7 Logic and Quad-Level Pin Diagrams
        1. 9.3.7.1 nFAULT Pin
      8. 9.3.8 Protection Circuits
        1. 9.3.8.1 VM Undervoltage Lockout (UVLO)
        2. 9.3.8.2 VCP Undervoltage Lockout (CPUV)
        3. 9.3.8.3 Overcurrent Protection (OCP)
        4. 9.3.8.4 Thermal Shutdown (OTSD)
    4. 9.4 Device Functional Modes
      1. 9.4.1 Sleep Mode (nSLEEP = 0)
      2. 9.4.2 Operating Mode (nSLEEP = 1)
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Current Regulation
        2. 10.2.2.2 Stepper Motor Speed
        3. 10.2.2.3 Decay Modes
    3. 10.3 Alternate Application
      1. 10.3.1 Design Requirements
      2. 10.3.2 Detailed Design Procedure
        1. 10.3.2.1 Current Regulation
  11. 11Power Supply Recommendations
    1. 11.1 Bulk Capacitance
  12. 12Layout
    1. 12.1 Layout Guidelines
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Related Links
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Community Resources
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Dual H-bridge motor driver
    • One bipolar stepper motor
    • Dual brushed-DC motors
  • Integrated current sense functionality
    • No sense resistors required
    • ±7.5% Full-scale current accuracy
  • 4.5- to 48-V Operating supply voltage range
  • Multiple control interface options
    • PHASE/ENABLE
    • PWM
  • Smart tune decay technology, fixed slow, fast and mixed decay options
  • Low RDS(ON): 900 mΩ HS + LS at 24 V, 25°C
  • High Current Capacity Per Bridge: 2.4-A peak, 1.5-A Full-Scale, 1.1-A rms
  • Configurable Off-Time PWM Chopping
    • 7, 16, 24 or 32 μs
  • Supports 1.8-V, 3.3-V, 5.0-V logic inputs
  • Low-current sleep mode (2 µA)
  • Small package and footprint
  • Protection features
    • VM undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal shutdown (OTSD)
    • Fault condition output (nFAULT)