參數(shù)資料
型號: BQ20Z80DBT-V101
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO38
封裝: GREEN, PLASTIC, TSSOP-38
文件頁數(shù): 52/73頁
文件大?。?/td> 1094K
代理商: BQ20Z80DBT-V101
www.ti.com
Permanent Fail Cfg
Lifetime Data
bq20z80-V101
SLUS625D – SEPTEMBER 2004 – REVISED OCTOBER 2005
PF FLAGS 1
bit7
bit6
bit5
bit4
bit3
bit2
bi1
bit0
Low Byte
DFF
DFETF
CFETF
CIM
SOTD
SOTC
SOV
PFIN
PFIN
Set on External Input Indication of permanent failure
SOV
Set on a Safety-Overvoltage permanent failure
SOTC
Set on a Charge Safety Overtemperature permanent failure
SOTD
Set on a Discharge Safety Overtemperature permanent failure
CIM
Set on a Cell-Imbalance permanent failure
CFETF
Set on a Charge-FET-Failure permanent failure
DFETF
Set on a Discharge-FET-Failure permanent failure
DFF
Set on a Data Flash Fault permanent failure
AFE_C
Set on an AFE-Communications permanent failure
AFE_P
Set on a Periodic-AFE-Communications permanent failure
SOCC
Set on a Charge Safety-Overcurrent permanent failure
SOCD
Set on a Discharge Safety Overcurrent in permanent failure
SOPT
Set on an Open Thermistor permanent failure
FBF
Set when the fuse has not cut off current, even though the output has been driven low
The Permanent Failure Configuration register enables or disables the use of the SAFE and SAFE pins when the
corresponding DF:PF Flags 1 flag is set.
PERMANENT FAILURE
bit7
bit6
bit5
bit4
bit3
bit2
bi1
bit0
CFG
High Byte
XSOCD
XSOCC
XAFE_P
XAFE_C
Low Byte
XDFF
XDFETF
XCFETF
XCIM
XSOTD
XSOTC
XSOV
XPFIN
If corresponding DF:PF Flags 1 AND DF:Permanent Fail Cfg bits are set (1), the SAFE output is driven and
latched low and the SAFE output is driven and latched high. This does not include DF:PF Flags 1 [FBF].
Lifetime Maximum Temperature: This data flash value is updated if the current SBS.Temperature( ) is > the
current DF:Lifetime Max Temp value for a time > 60s OR an increment > 1.0
°C.
Lifetime Minimum Temperature: This data flash value is updated if the current SBS.Temperature( ) is < the
current DF:Lifetime Min Temp value for a time > 60s, OR an increment > 1.0
°C.
Lifetime Maximum Cell Voltage: This data flash value is updated if any SBS.CellVoltagex( ) is > the current
DF:Lifetime Max Cell Voltage value for a time > 60s, OR an increment > 25 mV.
Lifetime Minimum Cell Voltage: This data flash value is updated if the current SBS.CellVoltagex( ) is < the
current DF:Lifetime Min Cell Voltage value for a time > 60s, OR an increment > 25 mV.
Lifetime Maximum Pack Voltage: This data flash value is updated if the current SBS.Voltage( ) is > the current
DF:Lifetime Max PackVoltage value for a time > 60s, OR an increment > 100 mV.
Lifetime Minimum Pack Voltage: This data flash value is updated if the current SBS.Voltage( ) is < the current
Lifetime Min Pack Voltage value for a time > 60s, OR an increment > 100 mV.
Lifetime Maximum Charge Current: This data flash value is updated if the current SBS.AverageCurrent( ) is >
the current DF:Lifetime Max Chg Current value, and SBS.AverageCurrent( ) is positive (charge) for
a time > 60s, OR an increment > 100 mA.
Lifetime Maximum Discharge Current: This data flash value is updated if the current SBS.AverageCurrent ( )
is > the current DF:Lifetime Max Dsg Current value, and SBS.AverageCurrent( ) is negative
56
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