SLVUB95C December   2017  – August 2018 DRV10974

 

  1.   DRV10974 Evaluation Module
    1.     Trademarks
    2. 1  DRV10974 EVM Kit Contents
    3. 2  Introduction
      1. 2.1 Features
    4. 3  Quick Start Guide
    5. 4  DRV10974 Onboard Connections
      1. 4.1 Connector (P1) for Power Input
      2. 4.2 Interface Connector (P2) for Phase Windings of Motor
    6. 5  DRV10974 Package
    7. 6  User Interface
      1. 6.1 Jumpers
      2. 6.2 Switch
      3. 6.3 Test Points
    8. 7  CS, RMP, and ADV Resistor Selection
      1. 7.1 CS Resistor Table
      2. 7.2 RMP Resistor Table
      3. 7.3 ADV Resistor Table
    9. 8  Schematic
    10. 9  Bill of Materials (BOM)
    11. 10 EVM Documentation
  2.   Revision History

7.3 ADV Resistor Table

The ADV resistor controls the lead time in order to drive the motor with the best efficiency. More information can be found in DRV10974 12-V, Three-Phase, Sensorless BLDC Motor Driver. The default resistor on the DRV10974EVM is 59 kΩ, which sets the lead time to 400 µs.

Table 7. ADV Resistor Table

RADV [kΩ] LEAD TIME [µs]
10.7 10
14.3 25
17.8 50
22.1 100
28 150
34 200
41.2 250
49.9 300
59 400
71.5 500
86.6 600
105 700
124 800
150 900
182 1000