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Status
Condition
Normal
DSG FET off AND Current() > DFET:OFF Threshold
Alert
DSG FET off AND Current() ≤ DFET:OFF Threshold
DSG FET off AND Current() continuously ≤ DFET:OFF Threshold
Trip
for DFET:OFF Delay duration
Class
Subclass
Permanent Fail
DFET
Permanent Fail
DFET
3.6.2 Feature Enable/Disable
The feature is enabled when DFETF is set in Enable PF C.
3.7 Instruction Flash (IF) Checksum Permanent Fail
The device can permanently disable the battery if it detects a difference between the stored IF checksum and
the calculated IF checksum only following a device reset.
Status
Normal
Stored and calculated IF checksum match
Trip
Stored and calculated IF checksum after reset does not match.
3.8 Data Flash (DF) Permanent Fail
The device can permanently disable the battery in case a data flash write fails.
A DF write failure causes the gauge to disable further DF writes.
Status
Normal
Data flash write ok
Trip
Data flash write not successful
SLUUCO0 – APRIL 2022
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Table 3-2. DFET Data Flash Configuration
Name
OFF Threshold
Delay
Condition
Note
Condition
Copyright © 2022 Texas Instruments Incorporated
Action
PFAlert()[DFETF] = 0
PFAlert()[DFETF] = 1
PFAlert()[DFETF] = 0
PFStatus()[DFETF] = 1
Type
Min Value
Max Value
I2
–500
U1
0
255
PFStatus()[IFC] = 1
BatteryStatus()[TCA] = 1
BatteryStatus()[TDA] = 1
PFStatus()[DFW] = 1
BatteryStatus()[TCA] = 1
BatteryStatus()[TDA] = 1
Permanent Fail
Default
Unit
Value
0
–5
mA
5
s
Action
—
Action
—
BQ28Z610-R2
21
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