Texas Instruments BQ28Z610-R2 User Manual

10.1 Manufacture Testing
To improve the manufacture testing flow, the gas gauge device allows certain features to be toggled on or
off through MACSubcmd() commands. For example, the CHG FET(), DSG FET(), Lifetime Data Collection(),
Calibration(), and so on. Enabling only the feature under test can simplify the test flow in production by avoiding
any feature interference. These toggling commands will only set the RAM data, meaning the conditions set by
the these commands will be cleared if a reset or seal is issued to the gauge. The ManufacturingStatus() keeps
track of the status (enabled or disabled) of each feature.
The data flash Manufacturing Status provides the option to enable or disable individual features for normal
operation. Upon a reset or a seal command, ManufacturingStatus() will be reloaded from Manufacturing
Status. This also means if an update is made to ManufacturingStatus() to enable or disable a feature, the
gauge will only take the new setting if a reset or seal command is sent.
10.2 Calibration
The device has integrated routines that support calibration of current, voltage, and temperature readings,
accessible after writing 0xF081 or 0xF082 to MACSubcmd() when the ManufacturingStatus()[CAL_EN] bit is
ON. While the calibration is active, the raw ADC data is available on MACData(). The device stops reporting
calibration data on MACData() if any other MAC commands are sent or the device is reset or sealed.
Note
The ManufacturingStatus()[CAL_EN] bit must be turned OFF after calibration is completed. This bit is
cleared at reset or after sealing.
Table 10-1. MACSubcmd() Descriptions
MACSubcmd() Description
0x002D Enables/Disables ManufacturingStatus()[CAL_EN]
0xF080 Disables raw ADC data output on MACData()
0xF081 Outputs raw ADC data of voltage, current, and temperature on MACData()
0xF082
Outputs raw ADC data of voltage, current, and temperature on MACData(). This mode enables an
internal short on the coulomb counter inputs (SRP, SRN).
The MACData() output format is: ZZYYaaAAbbBBccCCddDDeeEEffFFggGGhhHHiiIIjjJJkkKK,
where:
Table 10-2. MACData() Format Descriptions
Value Format Description
ZZ byte 8-bit counter, increments when raw ADC values are refreshed (every 250 ms)
YY byte
Output status
MACSubcmd() = 0xF081: 1
MACSubcmd() = 0xF082: 2
AAaa 2's comp Current (coulomb counter)
BBbb 2's comp Cell Voltage 1
Chapter 10
Manufacture Production
www.ti.com Manufacture Production
SLUUCO0 – APRIL 2022
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Texas Instruments BQ28Z610-R2 Specifications

General

Brand	Texas Instruments
Model	BQ28Z610-R2
Category	Computer Hardware
Language	English