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| 型號： | S-8232AYFT-T2 |
| 元件分類： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | TSSOP-8 |
| 文件頁數(shù)： | 9/26頁 |
| 文件大?。?/td> | 729K |
| 代理商： | S-8232AYFT-T2 |
BATTERY PROTECTION IC FOR 2-CELL SERIAL PACK
Rev.4.3_01
S-8232 Series
Seiko Instruments Inc.
17
Battery Protection IC Connection Example
EB
+
EB
S-8232 Series
R4
1 k
VSS
DO
SENS
ICT
R3
1 k
C2
C3
CO
VM
Delay time setting
FET1
FET2
R2
1 k
VC
R1
1 k
VCC
C1
0.22
F
0.22
F
0.22
F
R5
4.7 M
Battery 1
Battery 2
Figure 7
Table 8 Constants for External Components
Symbol
Parts
Purpose
Typ.
Min.
Max.
Remark
FET1
Nch MOS FET Discharge control
FET2
Nch MOS FET Charge control
R1
Chip resistor
ESD protection
1 k
300
1 k
C1
Chip capacitor Filter
0.22
F
0
F
1
F
R2
Chip resistor
ESD protection
1 k
300
1 k
C2
Chip capacitor Filter
0.22
F
0
F
1
F
R4
Chip resistor
ESD protection
1 k
= R1 min. = R1 max. Same value as R1 and R2.
*1
C3
Chip capacitor Delay time setting
0.22
F
0
F
1
F
Attention should be paid to leak
current of C3.
*2
R3
Chip resistor
Protection for
charger reverse
connection
1 k
300
5 k
Discharge can’t be stopped at less
than 300
when a charger is
reverse-connected.
*3
R5
Chip resistor
0 V battery
charging inhibition
(4.7 M
)
(1 M
)
(10 M
)
R5 should be added when the
product has 0 V battery charge
inhibition. Lower resistance
increases current consumption.
*4
*1. R4
= R1 is required. Overcharge detection voltage increases by R4. For example 10 k (R4) increases overcharge
detection voltage by 20 mV.
*2. The overcharge detection delay time (tCU), the overdischarge detection delay time (tCD), and the over current detection
delay time (tIOV) change with the external capacitor C3. Refer to the “
Electrical Characteristics”.
*3. When the resistor R3 is set less than 300
and a charger is reverse-connected, current which exceeds the power
dissipation of the package will flow and the IC may break. But excessive R3 causes increase of overcurrent detection
voltage
1
(VIOV1).
VIOV1
changes
to
VIOV1
= (R3 + Rvsm) / Rvsm × VIOV1.
For
example,
50 k
resistor (R3) increases overcurrent detection voltage 1 (VIOV1) from 0.100 V to 0.113 V.
*4. A 4.7 M
resistor is needed for R5 to inhibit 0 V battery charging. Current consumption increases when the R5
resistance is below 4.7 M
. R5 should be connected when the product has 0 V battery charging inhibition.
Caution 1. The above constants may be changed without notice.
2. It has not been confirmed whether the operation is normal or not in circuits other than the above
example of connection. In addition, the example of connection shown above and the constant do not
guarantee proper operation.
Perform through evaluation using the actual application to set the
constant.
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-8232AYFT-T2-G | 功能描述:電池管理 Lithium-Ion battery protection (2 cell) 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 |
| S-8232AZFT-T2-G | 功能描述:電池管理 Lithium-Ion battery protection (2 cell) 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 |
| S8232GM4NR | 制造商:TYAN 功能描述:(2)SR5690, G34, (12+12) DDR3 DIMMS - Bulk |
| S-8232NAFT-T2-G | 功能描述:電池管理 Lithium-Ion battery protection (2 cell) 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 |
| S-8232NBFT-T2-G | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK |
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