參數(shù)資料
型號(hào)： S8233A
廠商： Seiko Instruments Inc.
英文描述： BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK
中文描述： 電池保護(hù)IC 3串行用電池
文件頁(yè)數(shù)： 19/30頁(yè)
文件大?。?/td> 646K
代理商： S8233A
Rev.3.2
_10
BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK
S-8233A Series
Battery Protection IC Connection Example
Seiko Instruments Inc.
19
EB+
EB-
S-8233A series
R1
VSS
DOP
CTL
VC2
COP
VMP
VC1
C4
C5
C6
CCT
COVT
CDT
Over charge delay
time setting
Over current delay
time setting
Over discharge delay
time setting
Battery 1
Battery 3
Battery 2
VCC
CD1
CD3
CD2
R2
C1
C2
C3
Nch open
drain
R11
R13
R12
FET-A
FET1
FET3
FET2
GND: Normal operation
Floating: Inhibit charging
and discharging.
R3
R7
R6
1 M
10 K
R5
1 K
High: Inhibit over
discharge
detection.
FET-C
FET-B
Figure 9
[Description of
Figure 9
]
z
R11, R12, and R13 are used to adjust the battery conditioning current. The conditioning current
during over charge detection is given by Vcu (over charge detection voltage)/R (R: resistance). To
disable the conditioning function, open CD1, CD2, and CD3.
z
The over charge detection delay time (t
CU1
to t
CU3
), over discharge detection delay time (t
DD1
to t
DD3
),
and over current detection delay time (t
IOV1
) are changed with external capacitors (C4 to C6). See
the electrical characteristics.
z
R6 is a pull-up resistor that turns FET-B off when the COP terminal is opened. Connect a
100 k
to 1 M
resistor.
z
R5 is used to protect the IC if the charger is connected in reverse. Connect a 10 k
to 50 k
resistor.
z
If capacitor C6 is absent, rush current occurs when a capacitive load is connected and the IC enters
the over current mode. C6 must be connected to prevent it.
z
If capacitor C5 is not connected, the IC may enter the over discharge condition due to variations of
battery voltage when the over current occurs. In this case, a charger must be connected to return
to the normal condition. To prevent this, connect an at least 0.01
μ
F capacitor to C5.
z
If a leak current flows between the delay capacitor connection terminal (CCT, CDT, or COVT) and
VSS, the delay time increases and an error occurs. The leak current must be 100 nA or less.
z
Over discharge detection can be disabled by using FET-C. The FET-C off leak must be 0.1
μ
A or
less. If over discharge is inhibited by using this FET, the current consumption does not fall below
0.1
μ
A even when the battery voltage drops and the IC enters the over discharge detection mode.
z
R1, R2, and R3 must be 1 k
or less.
z
R7 is the protection of the CTL when the CTL terminal voltage higher than V
CC
voltage. Connect a
300
to 5 k
resister. If the CTL terminal voltage never greater than the V
CC
voltage (ex. R7
connect to V
SS
), without R7 resistance is allowed .
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S-8233A 制造商:SII 制造商全稱(chēng):Seiko Instruments Inc 功能描述:BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK
S-8233ACFE-TB 功能描述:電池管理 4.25V 3-Cell Serial 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-8233ACFE-TB-G 功能描述:電池管理 4.25V 3-Cell Serial 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-8233ACFT-TB 功能描述:電池管理 4.25V 3-Cell Serial 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-8233ACFT-TB-G 功能描述:電池管理 4.25V 3-Cell Serial 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
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