SLAAEV0 July   2026 BQ79616-Q1

 

  1.   1
  2.   Abstract
  3. 1Basic Principle of Reverse Wake-up for BQ79616
    1. 1.1 Basic Principle of Reverse Wake-up Implemented by BQ79616 and BQ79600
    2. 1.2 OVUVOTUT Function of BQ79616
    3. 1.3 Logic for BQ79600 to Implement Reverse Wake-up
  4. 2How to Configure BQ79616 and BQ79600 to Achieve Reverse Wake-up Function
    1. 2.1 Configuration for BQ79616 to Implement Reverse Wake-up Function
    2. 2.2 Configuration for BQ79600 to Implement Reverse Wake-up Function
    3. 2.3 Other Configurations for BQ79600 and BQ79616 Prior to Entering Sleep
  5. 3Testing of Reverse Wake-up Based on EVM Board
    1. 3.1 Reverse Wake-up Test with BQ79600 Operating in Sleep Mode
    2. 3.2 Reverse Wake-up Test with BQ79600 Operating in Shutdown Mode
  6. 4Summary
  7. 5References

2.3 Other Configurations for BQ79600 and BQ79616 Prior to Entering Sleep

With the configurations in the above two subsections, the BQ79600 and BQ79616 can be successfully configured into the reverse wake-up state. Next, the preparatory work before entering sleep needs to be performed.

  1. For the BQ79616, mask the fault bits that are not desired to report errors in the sleep state, and reconfigure them as required after waking up the chip.
  2. Reset all fault registers of the BQ79616 and BQ79600.
  3. The chips enter Sleep or Shutdown mode.

The routine is described as follows:

# Mask all faults of BQ79616 except OVUVOTUT, Heartbeat and Fault tone

91 01 00 16 87 73 E2 8B

# Reset all faults for BQ79616

91 01 03 31 FF FF 71 61

# Reset all faults for BQ79600

90 00 20 30 FF B1 97

# All BQ79616 enter sleep mode

B0 03 09 04 D1 77

If the BQ79600 uses Sleep mode, use the following command:

# BQ79600 go to Sleep mode

90 00 03 09 04 13 8E

If the BQ79600 uses Shutdown mode, use the following command:

# BQ79600 go to Shutdown mode

90 00 03 09 08 13 8B