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參數(shù)資料
| 型號(hào)： | AIC1804 |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | CMOS Differential 4-Channel Analog Multiplexer/Demultiplexer with Logic-Level Conversion 16-SOIC -55 to 125 |
| 中文描述： | 三或四節(jié)鋰離子電池保護(hù)IC |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大?。?/td> | 170K |
| 代理商： | AIC1804 |
AIC1804
7
n
BLOCK DIAGRAM
Battery
Voltage
Sense
Circuit
450
400
350
300
12
VC2
14
VC1
16
VCC
10
15
13
11
9
8
UD4
UD3
UD2
VC3
UD1
GND
3
CS
7
TC
6
5
Wake-Up Control
2
4
OC
OD
VCC-1V
VCC-0.3V
VCC-0.15V
VCC+0.4V
Power-Down
Control
1.2V
Overcharge Delay
Circuit
Overcurrent Delay
Circuit
TI
TD
Overdischarge Delay
Circuit
n
PIN DESCRIPTIONS
PIN 1: NSL-
Input
selection. Connect this pin to
VCC for three-cell application
and
to
GND
application.
NMOS open drain output
for
control of the charge control
MOSFET M2. When overcharge
occurs, this pin sinks current to
switch the
external PNP Q1 on,
and charging is inhibited by
turning off the charge
control
MOSFET M2.
pin
for
cell
number
for
four-cell
PIN 2: OC-
PIN 3: CS-
Input pin for current sensing.
Using the drain-source voltage of
the discharge control MOSFET
M1 (voltage between VCC and
CS),
it senses discharge
current
during normal mode
and detects
whether charging
current is present
during
power-down mode.
PIN 4: OD -
Output pin for control
of discharge control MOSFET M1. When overdischarge occurs, this
Overdischarge delay time setting
pin.
Overcurrent
delay
time setting
pin.
Overcharge
delay time setting
pin.
PIN 5: TD
-
PIN 6: TI
-
PIN 7: TC
-
PIN 8: GND
-
Ground pin. This pin is to be
connected
to
terminal of the battery cell BAT4.
the
negative
PIN 9: UD4-
This pin is to be connected to the
positive terminal of the battery
cell
BAT4
for
bleeding
function
overcharge condition.
cell-balancing
under
PIN10: VC3-
Input
voltage sensing. This pin is to be
connected
to
terminal of the battery cell BAT4.
pin
for
battery
BAT4
the
positive
PIN11: UD3 -
This pin is to be connected to
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