SLUUC53A October   2020  – March 2021 BQ25300 , BQ25302 , BQ25303J

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 EVM Features
    2. 1.2 I/O Descriptions
  3. 2Test Setup and Results
    1. 2.1 Equipment
    2. 2.2 Equipment Setup
    3. 2.3 Test Procedure
      1. 2.3.1 Initial Settings
      2. 2.3.2 Precharge Mode Verification
      3. 2.3.3 Fast Charge Mode Verification
      4. 2.3.4 Battery Temperature Monitoring Verification
      5. 2.3.5 Evaluation Results
      6. 2.3.6 Helpful Tips
  4. 3PCB Layout Guideline
  5. 4Board Layout, Schematic, and Bill of Materials
    1. 4.1 Board Layout
    2. 4.2 Schematic
    3. 4.3 Bill of Materials
  6. 5Revision History

2.3.4 Battery Temperature Monitoring Verification

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

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

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

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