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參數(shù)資料
| 型號： | AIC1811 |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | One-Cell Lithium-Ion Battery Protection IC |
| 中文描述： | 單節(jié)鋰離子電池保護(hù)IC |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 118K |
| 代理商： | AIC1811 |
AIC1811
4
n
BLOCK DIAGRAM
Power-down
Control
Wake-up Control
-0.3V
3
4
1
2
5
VCC
Overdischarge
Delay Circuit
Overcharge
Delay Circuit
Overcurrent
Delay Circuit
Enable
Enable
Load Detected
0.3V
0.2V
CS
GND
OC
OD
1.2V
1V
n
PIN DESCRIPTIONS
PIN 1:
OC
- PMOS open drain output for
control of the charge control
MOSFET M2. In normal mode,
this PMOS turns on to pull the
gate of the MOSFET M2 to high,
then the MOSFET M2 turns on.
When overcharge occurs, this
PMOS turns off, then no current
flows
through
MOSFET M2 turns off.
R3
and
the
PIN 2:
GND - Ground pin. This pin is to be
connected to the negative terminal
of the battery cell.
PIN 3:
OD
- Output pin for control of the
discharge control MOSFET M1.
When overdischarge occurs, this
pin goes low to turn off the
MOSFET M1 and discharging is
inhibited.
PIN 4:
CS
- Input pin for current sensing.
Using the sum of drain-source
voltages of the MOSFET M1 and
the
MOSFET
between CS and GND), it senses
discharge current during normal
mode and detects whether charge
current is present during power-
down mode. It also used to detect
whether load is connected during
overcharge mode.
M2
(voltage
PIN 5:
VCC - Power supply pin. This pin is to be
connected to the positive terminal
of the battery cell.
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