SLVSFV5B July   2023  – October 2024 DRV8262

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
      1. 5.4.1 Transient Thermal Impedance & Current Capability
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1  Overview
    2. 6.2  Functional Block Diagram
    3. 6.3  Feature Description
    4. 6.4  Device Operational Modes
      1. 6.4.1 Dual H-Bridge Mode (MODE1 = 0)
      2. 6.4.2 Single H-Bridge Mode (MODE1 = 1)
    5. 6.5  Current Sensing and Regulation
      1. 6.5.1 Current Sensing and Feedback
      2. 6.5.2 Current Regulation
        1. 6.5.2.1 Mixed Decay
        2. 6.5.2.2 Smart tune Dynamic Decay
      3. 6.5.3 Current Sensing with External Resistor
    6. 6.6  Charge Pump
    7. 6.7  Linear Voltage Regulator
    8. 6.8  VCC Voltage Supply
    9. 6.9  Logic Level, Tri-Level and Quad-Level Pin Diagrams
    10. 6.10 Protection Circuits
      1. 6.10.1 VM Undervoltage Lockout (UVLO)
      2. 6.10.2 VCP Undervoltage Lockout (CPUV)
      3. 6.10.3 Logic Supply Power on Reset (POR)
      4. 6.10.4 Overcurrent Protection (OCP)
      5. 6.10.5 Thermal Shutdown (OTSD)
      6. 6.10.6 nFAULT Output
      7. 6.10.7 Fault Condition Summary
    11. 6.11 Device Functional Modes
      1. 6.11.1 Sleep Mode
      2. 6.11.2 Operating Mode
      3. 6.11.3 nSLEEP Reset Pulse
      4. 6.11.4 Functional Modes Summary
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Driving Brushed-DC Motors
        1. 7.1.1.1 Brushed-DC Motor Driver Typical Application
        2. 7.1.1.2 Power Loss Calculations - Dual H-bridge
        3. 7.1.1.3 Power Loss Calculations - Single H-bridge
        4. 7.1.1.4 Junction Temperature Estimation
        5. 7.1.1.5 Application Performance Plots
      2. 7.1.2 Driving Stepper Motors
        1. 7.1.2.1 Stepper Driver Typical Application
        2. 7.1.2.2 Power Loss Calculations
        3. 7.1.2.3 Junction Temperature Estimation
      3. 7.1.3 Driving Thermoelectric Coolers (TEC)
    2. 7.2 Power Supply Recommendations
      1. 7.2.1 Bulk Capacitance
      2. 7.2.2 Power Supplies
    3. 7.3 Layout
      1. 7.3.1 Layout Guidelines
      2. 7.3.2 Layout Example
  9. 8 Package Thermal Considerations
    1. 8.1 DDW Package
      1. 8.1.1 Thermal Performance
        1. 8.1.1.1 Steady-State Thermal Performance
        2. 8.1.1.2 Transient Thermal Performance
    2. 8.2 DDV Package
    3. 8.3 PCB Material Recommendation
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Tape and Reel Information

5.4.1 Transient Thermal Impedance & Current Capability

Information based on thermal simulations

Table 5-1 Transient Thermal Impedance (RθJA) and Current Capability

RθJA [°C/W](1)

Configuration

Current (A)(2)

without PWM(3)

with PWM(4)

0.1 sec

1 sec

10 sec

DC

0.1 sec

1 sec

10 sec

DC

10 sec

DC

1.8

4.7

8.4

23.3

Dual H-Bridge (both outputs loaded with same current)

8

5.7

4.2

2.5

4

2.2

Dual H-Bridge (only one output loaded)

8

8

6

3.5

5.4

3

Single H-Bridge

16

11.3

8.4

4.9

7.9

4.4

(1) Simulated using 114.3 mm x 76.2 mm x 1.6 mm 4 layer PCB – 2 oz Cu on top and bottom layers, 1 oz Cu on internal planes, 16 cm2 top and bottom layer Cu area, with 13 x 5 thermal via array below thermal pad, 1.1 mm pitch, 0.2 mm diameter, 0.025 mm Cu plating.
(2) Estimated transient current capability at 85 °C ambient temperature for junction temperature rise up to 150°C.
(3) Only conduction losses (I2R) and quiescent current loss at 48 V supply voltage are considered. Maximum ON resistance values at 150°C as per Electrical Characteristics table are considered to calculate conduction losses.
(4) Switching loss estimated by the equation: PSW = VVM x ILoad x fPWM x tRF, where VVM = 48 V, fPWM = 20 KHz, tRF = 110 ns