SLUUD09 April   2024 BQ25308

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 I/O Descriptions
    2. 2.2 Equipment
    3. 2.3 Equipment Setup
  8. 3Implementation Results
    1. 3.1 Test Setup and Results
      1. 3.1.1 Test Procedure
        1. 3.1.1.1 Initial Settings
        2. 3.1.1.2 Precharge Mode Verification
        3. 3.1.1.3 Fast Charge Mode Verification
        4. 3.1.1.4 Battery Temperature Monitoring Verification
        5. 3.1.1.5 Helpful Tips
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
      1. 4.2.1 Board Layout
    3. 4.3 Bill of Materials
  10. 5Additional Information
    1. 5.1 Trademarks

3.1.1.4 Battery Temperature Monitoring Verification

  1. Turn on PS2 and take measurements as follows:
    1. Measure → VTS (TS-TP7 and PGND-TP12) = 3V ± 0.1V
    2. Observe → STAT LED (D2) on
    3. Measure→ IBAT for respective battery charger IC from Table 4-2.
  2. Change PS2 to 4.5V and take measurements as follows:
    1. Measure → VTS (TS-TP7 and PGND-TP12) = 4.5V ± 0.1V
    2. Observe → STAT LED (D2) blinking at 1Hz to indicate a fault
    3. Measure→ IBAT = 0A ± 10mA
    4. Battery charger is operating in COLD

      For more information on TS threshold, refer to data sheet of respective battery charger IC in Table 2-1.

  3. Change PS2 to 0V and take measurements as follows:
    1. Measure → VTS (TS-TP7 and PGND-TP12) = 0V ± 0.1V
    2. Observe → STAT LED (D2) blinking at 1Hz to indicate a fault
    3. Measure→ IBAT = 0A ± 10mA
    4. Battery charger is operating in HOT

      For more information on TS threshold, refer to data sheet of respective battery charger IC in Table 2-1.