SLVSAB7E May   2010  – March 2023 DRV8840

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 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 Driver
      2. 7.3.2 Bridge Control
      3. 7.3.3 Current Regulation
      4. 7.3.4 Decay Mode and Braking
      5. 7.3.5 Blanking Time
      6. 7.3.6 Protection Circuits
        1. 7.3.6.1 Overcurrent Protection (OCP)
        2. 7.3.6.2 Thermal Shutdown (TSD)
        3. 7.3.6.3 Undervoltage Lockout (UVLO)
    4. 7.4 Device Functional Modes
      1. 7.4.1 nRESET and nSLEEP Operation
  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 Current Regulation
        2. 8.2.2.2 Sense Resistor
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
    1. 9.1 Bulk Capacitance Sizing
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
      1. 10.3.1 Power Dissipation
      2. 10.3.2 Heatsinking
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

6.5 Electrical Characteristics

over operating free-air temperature range (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
POWER SUPPLIES
IVMVM operating supply currentVM = 24 V, fPWM < 50 kHz58mA
IVMQVM sleep mode supply currentVM = 24 V1020μA
VUVLOVM undervoltage lockout voltageVM rising7.88.2V
V3P3OUT REGULATOR
V3P3V3P3OUT voltageIOUT = 0 to 1 mA3.23.33.4V
LOGIC-LEVEL INPUTS
VILInput low voltage0.60.7V
VIHInput high voltage2.25.25V
VHYSInput hysteresis0.30.450.6V
IILInput low currentVIN = 0–2020μA
IIHInput high currentVIN = 3.3 V33100μA
RPDInternal pulldown resistance100kΩ
nFAULT OUTPUT (OPEN-DRAIN OUTPUT)
VOLOutput low voltageIO = 5 mA0.5V
IOHOutput high leakage currentVO = 3.3 V1μA
DECAY INPUT
VILInput low threshold voltageFor slow decay (brake) mode00.8V
VIHInput high threshold voltageFor fast decay (coast) mode2V
IINInput current±40μA
RPUInternal pullup resistance130kΩ
RPDInternal pulldown resistance80kΩ
H-BRIDGE FETS
RDS(ON)HS FET on resistanceVM = 24 V, IO = 1 A, TJ = 25°C0.1Ω
VM = 24 V, IO = 1 A, TJ = 85°C0.130.16
RDS(ON)LS FET on resistanceVM = 24 V, IO = 1 A, TJ = 25°C0.1Ω
VM = 24 V, IO = 1 A, TJ = 85°C0.130.16
IOFFOff-state leakage current–4040μA
MOTOR DRIVER
fPWMInternal current control PWM frequency50kHz
tBLANKCurrent sense blanking time3.75μs
tRRise time30200ns
tFFall time30200ns
PROTECTION CIRCUITS
IOCPOvercurrent protection trip level6A
tTSDThermal shutdown temperatureDie temperature150160180°C
CURRENT CONTROL
IREFVREF input currentVREF = 3.3 V–33μA
VTRIPISENSE trip voltageVREF = 3.3 V, 100% current setting635660685mV
ΔITRIPCurrent trip accuracy
(relative to programmed value)		VREF = 3.3 V, 5% current setting–25%25%
VREF = 3.3 V, 10% - 34% current setting–15%15%
VREF = 3.3 V, 38% - 67% current setting–10%10%
VREF = 3.3 V, 71% - 100% current setting–5%5%
AISENSECurrent sense amplifier gainReference only5V/V