SLVSAX9G September   2011  – November 2025 DRV8818

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements
    7. 5.7 Motor Driver Timing Switching Characteristics
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 PWM H-Bridge Drivers
      2. 6.3.2 Current Regulation
      3. 6.3.3 Decay Mode
      4. 6.3.4 Microstepping Indexer
      5. 6.3.5 Protection Circuits
        1. 6.3.5.1 Overcurrent Protection (OCP)
        2. 6.3.5.2 Thermal Shutdown (TSD)
        3. 6.3.5.3 Undervoltage Lockout (UVLO)
    4. 6.4 Device Functional Modes
      1. 6.4.1 Sleep Mode
      2. 6.4.2 Disable Mode
      3. 6.4.3 Active Mode
      4. 6.4.4 Decay Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Stepper Motor Speed
        2. 7.2.2.2 Current Regulation
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
      1. 7.3.1 Bulk Capacitance
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Heatsinking
      2. 7.4.2 Layout Example
      3. 7.4.3 Thermal Considerations
        1. 7.4.3.1 Power Dissipation
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

5.5 Electrical Characteristics

TA = 25°C (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
POWER SUPPLIES
IVMVM operating supply currentVM = 35V, fPWM < 50kHz710mA
IVCCVCC operating supply currentfPWM < 50kHz0.44mA
IVMQVM sleep mode supply currentVM = 35V320μA
IVCCQVCC sleep mode supply current0.520μA
VUVLOVM undervoltage lockout voltageVM rising6.77.5V
VCC undervoltage lockout voltageVCC rising2.752.95
VREF INPUT/CURRENT CONTROL ACCURACY
IREFVREF input currentVREF = 3.3V–33μA
ΔICHOPChopping current accuracyVREF = 2.0V, 70% to 100% current–5%5%
VREF = 2.0V, 20% to 56% current–10%10%
LOGIC-LEVEL INPUTS
VILInput low voltage0.3 × VCCV
VIHInput high voltage0.7 × VCCV
VHYSInput hysteresis300mV
IILInput low currentVIN = 0.3 × VCC–2020μA
IIHInput high currentVIN = 0.3 × VCC–2020μA
RPUPullup resistanceENABLEn, RESETn1MΩ
RPDPulldown resistanceDIR, STEP, SLEEPn, USM1, USM0, SRn1MΩ
HOMEn OUTPUT
VOLOutput low voltageIO = 200μA0.3 × VCCV
VOHOutput high voltageIO = –200 μA0.7 × VCCV
DECAY INPUT
VILInput low threshold voltageFor fast decay mode0.21 × VCCV
VIHInput high threshold voltageFor slow decay mode0.6 × VCCV
H-BRIDGE FETS
Rds(on)HS FET on resistanceVM = 24V, IO = 2.5A, TJ = 25°C0.220.30Ω
Rds(on)LS FET on resistanceVM = 24V, IO = 2.5A, TJ = 25°C0.150.24Ω
ILEAKOutput leakage current to ground in disable modeH-bridges are Hi-Z, VVM = 35V4400μA
PROTECTION CIRCUITS
TTSDThermal shutdown temperatureDie temperature150160180°C
IOCPOvercurrent protection level3.5A
tOCPOCP deglitch time1.5µs
tRETOCP retry time800µs