- 您現(xiàn)在的位置：買(mǎi)賣(mài)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(hào)： | 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(yè)數(shù)： | 4/73頁(yè) |
| 文件大?。?/td> | 1094K |
| 代理商： | BQ20Z80DBT-V101 |
第1頁(yè)第2頁(yè)第3頁(yè)當(dāng)前第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)
www.ti.com
1st LEVEL PROTECTION FEATURES
Cell Overvoltage
Cell Overvoltage Threshold Compensation
Pack Overvoltage
bq20z80-V101
SLUS625D – SEPTEMBER 2004 – REVISED OCTOBER 2005
The bq20z80 supports a wide range of battery and system protection features that are easily configured or
disabled via the integrated data flash.
The bq20z80 can disable charging by turning off the charge FET if any cell voltage is
≥ DF:COV Threshold for
a
≥ DF:COV Time. This feature is disabled if DF:COV Time = 0.
During the time between when an excessive voltage is first detected and the expiration of DF:COV Time,
SBS.SafetyAlert( ) [COV] is set. If, during this period, the voltage falls below the DF:COV Threshold, this flag is
cleared.
If DF:COV Time expires, the charge FET is turned off. The ZVCHG FET is also turned off if the DF:Operation
Cfg A [ZVCHG1, ZVCHG0] bits are set appropriately. Also, when DF:COV Time expires, SBS.ChargingCurrent( )
and SBS.ChargingVoltage( ) are cleared, SBS.BatteryStatus( ) Terminate_Charge_Alarm is set, and
SBS.SafetyStatus( ) [COV] is set.
For the bq20z80 to fully recover from a cell overvoltage condition, all SBS.CellVoltagex( ) values must be
≤ the
DF:COV 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
an
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( ) [COV] is reset.
However, when the bq20z80 has SBS.SafetyStatus( ) [COV] 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 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
COV Threshold
3700 to 5000
2
4300
mV
COV Recovery
1st Level Safety / Voltage (0)
Integer
0 to 4400
2
3900
COV Time
0 to 60
1
s
2
If the bq20z80 detects charging (SBS.BatteryStatus( ) [DSG] = 0) the actual threshold for cell-overvoltage
detection may be reduced, based on the reported SBS.Temperature( ).
If SBS.Temperature( ) is > DF:Over Temp Chg–DF:COV Temp Hys, the actual cell-overvoltage threshold used is
DF:COV Threshold–DF:COV Delta. However, if DF:COV Delta = 0 then the compensation of the cell-overvoltage
threshold is disabled.
SIZE
DEFAULT
NAME
DESCRIPTION
FORMAT
VALID RANGE
UNITS
(BYTES)
VALUE
Overtemp Chg
1st Level Safety / Temperature (2)
0 to 1200
2
550
0.1
°C
COV Temp Hys
Integer
0 to 250
1
100
1st Level Safety / Voltage (0)
COV Delta
0 to 200
1
mV
20
The bq20z80 can disable charging by turning off the charge FET if SBS.Voltage( ) is
≥ DF:POV Threshold for a
period
≥ DF:POV Time. However, if DF:POV Time = 0, this feature is disabled.
During the period between when an excessive voltage is detected and the expiration of DF:POV Time, the
SBS.SafetyAlert( ) [POV] bit is set. If during this period, the voltage falls below the DF:POV Threshold, this flag is
cleared.
If DF:POV Time expires, the charge FET is turned off. The ZVCHG FET is also turned off if the DF:Operation Cfg
A [ZVCHG1, ZVCHG0] bits are set appropriately. Also, when DF:POV Time expires, SBS.ChargingCurrent( ) and
SBS.ChargingVoltage(
)
are
set
to
0,
SBS.BatteryStatus(
)
Terminate_Charge_Alarm
is
set,
and
SBS.SafetyStatus( ) [POV] is set.
12
相關(guān)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(guān)代理商/技術(shù)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(kāi)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(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。