SLVSA06K October   2009  – January 2022 DRV8824

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 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 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 PWM Motor Drivers
      2. 7.3.2 Current Regulation
      3. 7.3.3 Decay Mode
      4. 7.3.4 Blanking Time
      5. 7.3.5 Microstepping Indexer
      6. 7.3.6 nRESET, nENBL and nSLEEP Operation
      7. 7.3.7 Protection Circuits
        1. 7.3.7.1 Overcurrent Protection (OCP)
        2. 7.3.7.2 Thermal Shutdown (TSD)
        3. 7.3.7.3 Undervoltage Lockout (UVLO)
    4. 7.4 Device Functional Modes
      1. 7.4.1 STEP/DIR Interface
      2. 7.4.2 Microstepping
  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 Stepper Motor Speed
        2. 8.2.2.2 Current Regulation
        3. 8.2.2.3 Decay Modes
      3. 8.2.3 Application Curves
  9. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
    3. 9.3 Thermal Considerations
    4. 9.4 Power Dissipation
    5. 9.5 Heatsinking
  10. 10Device and Documentation Support
    1. 10.1 Community Resources
    2. 10.2 Trademarks
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RHD|28
  • PWP|28
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.5 Electrical Characteristics

over operating free-air temperature range of –40°C to 85°C (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
POWER SUPPLIES
IVMxVMx operating supply currentV(VMx) = 24 V, ƒPWM < 50 kHz58mA
IVMxQVMx sleep mode supply currentV(VMx) = 24 V1020μA
V3P3OUT REGULATOR
V3P3V3P3OUT voltageIOUT = 0 to 1 mA, V(VMx) = 24 V, TJ = 25°C3.183.303.42V
IOUT = 0 to 1 mA3.103.303.50
LOGIC-LEVEL INPUTS
VILInput low voltage00.7V
VIHInput high voltage25.25V
VHYSInput hysteresis0.45V
IILInput low currentV(VIN) = 0–2020μA
IIHInput high currentV(VIN) = 3.3 V100μA
RPDInternal pulldown resistancenENBL, nRESET, DIR, STEP, MODEx100kΩ
nSLEEP1MΩ
nHOME, nFAULT OUTPUTS (OPEN-DRAIN OUTPUTS)
VOLOutput low voltageIO = 5 mA0.5V
IOHOutput high leakage currentVO = 3.3 V1μA
DECAY INPUT
VILInput low threshold voltageFor slow decay mode0.8V
VIHInput high threshold voltageFor fast decay mode2V
IINInput current–100100µA
RPUInternal pullup resistance130kΩ
RPDInternal pulldown resistance80kΩ
H-BRIDGE FETS
RDS(ON)HS FET on resistanceV(VMx) = 24 V, IO = 1 A, TJ = 25°C0.63Ω
V(VMx) = 24 V, IO = 1 A, TJ = 85°C0.760.90
RDS(ON)LS FET on resistanceV(VMx) = 24 V, IO = 1 A, TJ = 25°C0.65Ω
V(VMx) = 24 V, IO = 1 A, TJ = 85°C0.780.90
IOFFOff-state leakage current–2020μA
MOTOR DRIVER
ƒPWMInternal PWM frequency50kHz
tBLANKCurrent sense blanking time3.75μs
tRRise timeV(VMx) = 24 V100360ns
tFFall timeV(VMx) = 24 V80250ns
tDEADDead time400ns
PROTECTION CIRCUITS
VUVLOVMx undervoltage lockout voltageV(VMx) rising7.88.2V
IOCPOvercurrent protection trip level1.85A
tDEGOvercurrent deglitch time3µs
TTSDThermal shutdown temperatureDie temperature150160180°C
CURRENT CONTROL
IREFxVREF input currentV(xVREF) = 3.3 V–33μA
VTRIPxISENSE trip voltageV(xVREF) = 3.3 V, 100% current setting635660685mV
ΔITRIPCurrent trip accuracy
(relative to programmed value)		V(xVREF) = 3.3 V , 5% current setting–25%25%
V(xVREF) = 3.3 V , 10% to 34% current setting–15%15%
V(xVREF) = 3.3 V, 38% to 67% current setting–10%10%
V(xVREF) = 3.3 V, 71% to 100% current setting–5%5%
AISENSECurrent sense amplifier gainReference only5V/V