參數(shù)資料
型號(hào)： S-8241ABXMC-GBX-T2
元件分類(lèi)： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝： SOT-23, 5 PIN
文件頁(yè)數(shù)： 14/32頁(yè)
文件大小： 1009K
代理商： S-8241ABXMC-GBX-T2
BATTERY PROTECTION IC FOR 1-CELL PACK
Rev.4.1_01
S-8241 Series
Seiko Instruments Inc.
21
Battery Protection IC Connection Example
EB+
EB
S-8241Series
470
VSS
Battery
DO
VDD
R2
C1
CO
VM
FET1
FET2
R1
0.1
F
1 k
Figure 11
Table 1 Constants for External Components
Symbol
Parts
Purpose
Typ.
min.
max.
Remarks
FET1
Nch
MOS_FET
Discharge control
0.4 V
≤ Threshold voltage ≤
overdischarge detection voltage.
*1
Withstand voltage between gate and
source
≥ Charger voltage
*2
FET2
Nch
MOS_FET
Charge control
0.4 V
≤ Threshold voltage ≤
overdischarge detection voltage.
*1
Withstand voltage between gate and
source
≥ Charger voltage
*2
R1
Resistor
Protection for ESD and
power fluctuation
470
300
R2 value Relation R1 ≤ R2 should be
maintained.
*3
C1
Capacitor
Protection for power
fluctuation
0.1
F
0.01
F
1.0
F
Install a capacitor of 0.01
F or
higher between VDD and VSS.
*4
R2
Resistor
Protection for charger
reverse connection
1 k
300
1.3 k
To suppress current flow caused by
reverse connection of a charger, set the
resistance within the range from 300
to
1.3 k
.
*5
*1. If an FET with a threshold voltage of 0.4 V or lower is used, the FET may fail to cut the charging current.
If an FET with a threshold voltage equal to or higher than the overdischarge detection voltage is used, discharging may stop
before overdischarge is detected.
*2. If the withstand voltage between the gate and source is lower than the charger voltage, the FET may break.
*3. If R1 has a higher resistance than R2 and if a charger is connected reversely, current flows from the charger to the IC and the
voltage between VDD and VSS may exceed the absolute maximum rating. Install a resistor of 300
or higher as R1 for ESD
protection.
If R1 has a high resistance, the overcharge detection voltage increases by IC current consumption.
*4. If a capacitor C1 is less than 0.0 1
F, DO may oscillate when load short-circuiting is detected, a charger is connected
reversely, or overcurrent 1 or 2 is detected.
A capacitor of 0.01
F or higher as C1 should be installed. In some types of batteries DO oscillation may not stop unless the
C1 capacity is increased. Set the C1 capacity by evaluating the actual application.
*5. If R2 is set to less than 300
, a current which is bigger than the power dissipation flows through the IC and the IC may break
when a charger is connected reversely. If a resistor bigger than 1.3 k
is installed as R2, the charging current may not be cut
when a high-voltage charger is connected.
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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S-8241ABYMC-GBYT2G 功能描述:電池管理 Lithium-Ion battery protection (1 cell) RoHS:否 制造商:Texas Instruments 電池類(lèi)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-8241ABZPG-KBZTFG 功能描述:電池管理 LITHIUM-ION BATTERY PROTECTION 1 CELL RoHS:否 制造商:Texas Instruments 電池類(lèi)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-8241ABZPN-KBZTFG 制造商:Seiko Instruments Inc (SII) 功能描述:BATTERY PROT LI-ION/LI-POL 4.275V 5PIN SON(A) - Tape and Reel
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