- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄295161 > BQ20Z80DBT-V101 (TEXAS INSTRUMENTS INC) 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO38 PDF資料下載
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)： | 5/73頁 |
| 文件大?。?/td> | 1094K |
| 代理商： | BQ20Z80DBT-V101 |
第1頁第2頁第3頁第4頁當前第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁
www.ti.com
Cell Undervoltage
Pack Undervoltage
bq20z80-V101
SLUS625D – SEPTEMBER 2004 – REVISED OCTOBER 2005
For the bq20z80 to fully recover from a pack overvoltage condition, SBS.Voltage( ) must be
≤ DF:POV Recovery
threshold. When this occurs, the charge FET is allowed to be turned on only if other safety and configuration
states permit. On recovery from a pack overvoltage condition, SBS.BatteryStatus( ) Terminate_Charge_Alarm is
reset, SBS.ChargingCurrent( ) and SBS.ChargingVoltage( ) are set to the appropriate value per the charging
algorithm, and SBS.SafetyStatus( ) [POV] is reset.
However, when the SBS.SafetyStatus( ) [POV] bit set, the charge FET is turned on again while SBS.Current( ) is
reported to be
≤ (-) DF:Dsg Current Threshold. No other flags change state until the full recovery is reached.
This prevents overheating the charge-FET body diode during discharge from an overvoltage condition.
SIZE
DEFAULT
NAME
CLASS / SUBCLASS
FORMAT
VALID RANGE
UNITS
(BYTES)
VALUE
POV Threshold
0 to 18000
2
17500
mV
POV Recovery
1st Level Safety / Voltage (0)
Integer
0 to 17000
2
16000
POV Time
0 to 60
1
s
2
The bq20z80 can disable discharging by turning off the discharge FET if any SBS.CellVoltagex( ) is
≤ DF:CUV
Threshold for a period
≥ DF:CUV Time. This feature is disabled if DF:CUV Time = 0.
During the period between the time when a low voltage is first detected and the expiration of DF:CUV Time, the
SBS.SafetyAlert( ) [CUV] bit is set. If, during this period, the voltage rises above DF:CUV Threshold, this flag is
cleared.
If DF:CUV Time expires, the discharge FET is turned off and the ZVCHG FET is turned on if DF:Operation Cfg A
[ZVCGH1, ZVCHG0] are set appropriately. Also, when DF:CUV Time expires, SBS.BatteryStatus( ) [TDA, FD]
are set, SBS.ChargingCurrent( ) is set to DF:Pre-Charge Current, SBS.OperationStatus( ) [XDSG] is set and
SBS.SafetyStatus( [CUV] is set.
For the bq20z80 to fully recover from a cell undervoltage condition, all SBS.CellVoltagex( ) values should
be
≥ DF:CUV Recovery threshold. When this occurs, the discharge FET is allowed to be turned on only if other
safety and configuration states permit. On recovery from an undervoltage condition, SBS.BatteryStatus( ) [TDA]
is reset, SBS.ChargingCurrent( ) and SBS.ChargingVoltage( ) are set to the appropriate value per the charging
algorithm and SBS.OperationStatus( ) [XDSG] and SBS.SafetyStatus( ) [CUV] are reset.
However, when the bq20z80 has the SBS.SafetyStatus( ) [CUV] bit set, the discharge FET is turned on again if
SBS.Current( ) is reported to be
≥ DF:Chg Current Threshold. No other flags change state until full recovery is
reached. This prevents overheating the discharge-FET body diode during charging from an undervoltage
condition.
SIZE
DEFAULT
NAME
CLASS / SUBCLASS
FORMAT
VALID RANGE
UNITS
(BYTES)
VALUE
CUV Threshold
0 to 3500
2
2200
mV
CUV Recovery
1st Level Safety / Voltage (0)
Integer
0 to 3600
2
3000
CUV Time
0 to 60
1
s
2
The bq20z80 can disable discharging by turning off the discharge FET if SBS.Voltage( ) is
≤ DF:PUV Threshold
for a time period
≥ DF:PUV Time. This feature is disabled if DF:PUV Time = 0.
During the period between the time when a low voltage is first detected and the expiration of DF:PUV Time,
SBS.SafetyAlert( ) [PUV] is set. If, during this period, the voltage rises above the DF:PUV Threshold, this flag is
cleared.
If DF:PUV Time expires, the discharge FET is turned off and the ZVCHG FET is turned on if DF:Operation Cfg A
[ZVCHG1, ZVCHG0] are set appropriately. Also when DF:PUV Time expires SBS.BatteryStatus( ) [TDA,FD]are
set, SBS.ChargingCurrent( ) is set to DF:Pre-Charge Current, SBS.OpertionStatus( ) [XDSG] is set and
SBS.SafetyStatus( ) [PUV] is set.
13
相關PDF資料 |
PDF描述 |
|---|---|
| BQ2110LB-001 | DC-DC REG PWR SUPPLY MODULE |
| BQ24630RGET | SWITCHED CAPACITOR CONVERTER, PQCC24 |
| BQ25070DQCR | 1 A BATTERY CHARGE CONTROLLER, PDSO10 |
| BQ3285ESSNTR | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
| BQ3285ESS-N | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| BQ20Z80DBT-V101G4 | 功能描述:電池管理 1% acc Gas Gauge for LiIon batterie RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| BQ20Z80DBT-V102 | 功能描述:電池管理 SBS 1.1-Compliant Gas Gauge RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| BQ20Z80DBT-V110 | 功能描述:電池管理 SBS 1.1-Compliant Gas Gauge RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| BQ20Z80DBT-V110G4 | 功能描述:電池管理 SBS 1.1-Compliant Gas Gauge RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| BQ20Z80EVM-001 | 功能描述:電源管理IC開發(fā)工具 Impedance Track Fuel Gge LiIon Batt Packs RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
發(fā)布緊急采購，3分鐘左右您將得到回復。