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参数资料
| 型号： | S-8233CAFT |
| 元件分类： | 电源管理 |
| 英文描述： | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | TSSOP-16 |
| 文件页数： | 10/26页 |
| 文件大小： | 440K |
| 代理商： | S-8233CAFT |
Battery Protection IC(for a 3-serial-cell pack)
S-8233C Series
Rev.3.1_00
Seiko Instruments Inc.
18
Battery Protection IC Connection Example
EB+
EB-
S-8233C series
R1
VSS
DOP
CTL
VC2
COP
VMP
VC1
C4
C5
C6
CCT
COVT
CDT
Over charge delay
time setting
Over current dela
time setting
Over discharge de
time setting
Battery 1
Battery 3
Battery 2
VCC
CSO
DSO
ISO
R2
C1
C2
C3
Nch open
drain
FET-A
CTL terminal voltage
GND: Normal operation
Floating or VCC: Inhibit chargin
and discharging.
R3
R6
10K
R5
1M
High: Inhibit o
discharge detec
FET-B
FET-C
Over charge
Condition
Over current
Condition
Over discharge
Condition
1K
R7
Figure 7
[
Description of Figure 7]
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 CSO, ISO, and DSO.
The over charge detection delay time (TCU1 to TCU3), over discharge detection delay time (TDD1 to
TDD3), and over current detection delay time (TI0V1) are changed with external capacitors (C4 to C6).
See the electrical characteristics.
R6 is a pull-up resistor that turns FET-B off when the COP terminal is opened. Connect a
100k
to 1 M resistor.
R5 is used to protect the IC if the charger is connected in reverse. Connect a 10 k
to 50 k resistor.
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.
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
F capacitor to C5.
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.
Over discharge detection can be disabled by using FET-C. The FET-C off leak must be 0.1
A or less. If
over discharge is inhibited by using this FET, the current consumption does not fall below 0.1
A even
when the battery voltage drops and the IC enters the over discharge detection mode.
R1, R2, and R3 must be 1k
or less.
R7 is the protection of the CTL when the CTL terminal voltage higher than VCC voltage. Connect a 300
to 5k resister. If the CTL terminal voltage never greater than the VCC voltage (ex. R7 connect to
VSS), without R7 resister is allowed.
Notes:
If any electrostatic discharge of 2000 V or higher is not applied to the S-8233 series with a human body
model, R1, R2, R3, C1, C2, and C3 are unnecessary.
The above connection diagram and constants do not guarantee proper operations. Evaluate your actual
application and set constants properly.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| S-8233CAFT-TB | 功能描述:电池管理 4.25V 3-Cell Serial RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| S-8233CAFT-TB-G | 功能描述:电池管理 4.25V 3-Cell Serial RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| S82343 | 制造商:Intel 功能描述: |
| S82344A | 制造商:Intel 功能描述:PERIPHERAL (MULTIFUNCTION) CONTROLLER, 160 Pin, QFP |
| S823519 WAF | 制造商:Intel 功能描述: |
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