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參數(shù)資料
| 型號： | BQ2002FSNG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 12/17頁 |
| 文件大小： | 318K |
| 代理商： | BQ2002FSNG4 |
Starting A Charge Cycle
Either of two events starts a charge cycle (see Figure 4):
1. Application of power to VCC or
2. Voltage at the BAT pin falling through the maximum
cell voltage VMCV where
VMCV = 2V
±5%.
If the battery is within the configured temperature and
voltage limits, the IC begins fast charge. The valid bat-
tery voltage range is VBAT <VMCV. The valid tempera-
ture range is VTS >VTCO where
VTCO = 0.5
VCC ±5%.
If the battery voltage or temperature is outside of these
limits, the IC pulse-trickle charges until the next new
charge cycle begins.
Fast charge continues until termination by one or more of
the five possible termination conditions:
n Peak voltage detection (PVD)
n Negative delta voltage (-
V)
n Maximum voltage
n Maximum temperature
n Maximum time
4
bq2002/F
Corresponding
Fast-Charge
Rate
TM
Termination
Typical Fast-Charge
and Top-Off
Time Limits
(minutes)
Typical PVD
and -
V Hold-Off
Time (seconds)
Top-Off
Rate
Pulse-
Trickle
Rate
Pulse-
Trickle
Period
(ms)
bq2002
bq2002F
C/2
Mid
PVD
160
600
C/32
C/64
9.15
1C
Low
PVD
80
100
300
C/16
C/64
18.3
2C
High
-
V
40
150
Disabled
C/32
18.3
Notes:
Typical conditions = 25°C, VCC = 5.0V.
Mid = 0.5 * VCC ±5V
Tolerance on all timing is
±20%.
Table 1. Fast-Charge Safety Time/Hold-Off Table
TD2002F1.eps
Fast Charging
VCC = 0
Fast Charging
CC Output
LED
s
Charge initiated by application of power
Charge initiated by battery replacement
Pulse-Trickle
Top-Off
(optional)
286
See
Table 1
s
286
4576
Figure 4. Charge Cycle Phases
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| BQ2002FSNTR | 功能描述:電池管理 NiCd/NiMH Gating Charge Mngmnt IC 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 |
| BQ2002FSNTRG4 | 功能描述:電池管理 NiCd/NiMH Gating Charge Mngmnt IC 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 |
| BQ2002G | 制造商:TI 制造商全稱:Texas Instruments 功能描述:NiCd/NiMH Fast-Charge Management ICs |
| BQ2002GPN | 功能描述:電池管理 NiCd/NiMH Gating Charge Mngmnt IC 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 |
| BQ2002GPNE4 | 功能描述:電池管理 NiCd/NiMH Gating Charge Mngmnt IC 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 |
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