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參數資料
| 型號： | AIC1781CN |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | Battery Charge Controller |
| 中文描述： | 電池充電控制器 |
| 文件頁數： | 7/17頁 |
| 文件大?。?/td> | 423K |
| 代理商： | AIC1781CN |
AIC1781
7
BLOCK DIAGRAM
Charge Control
State Machine
SEL1
SEL2
ADJ
SEL3
ICON
LED1
LED2
VTS
VBT
DSW
DIS
Discharge
Control Unit
Battery
Voltage
Protection
13-bit
A/D
Battery Temp.
Protection
Display
Control
Unit
Charge
Control Unit
TMR
Oscillator
VCC
GND
Bandgap
Reference &
Voltage
Regulator
PEAK
MODE
MODE
Selection
Peak Voltage
Timer Control
Battery Voltage &
Temperature
Portection Setting
LED‘s Display &
Trickle Pulse Duty
Setting
T/
t Detection
Setting
PIN DESCRIPTIONS
PIN 1: PEAK- Tri-level input, determining the
period of peak voltage timer.
(See 0
V cut-off section in
application informations.)
PIN 2: VBT-
Divided battery voltage input to
sense the battery voltage.
PIN 3: DIS-
Push-pull
control an external transistor to
discharge the battery. DIS is
active high when the AIC1781
enters discharge mode.
PIN 4: VTS-
The battery cell temperature is
represented as a voltage input
to the AIC1781 at this pin. The
output,
used
to
acceptable voltage range of
VTS pin is 0.29 VCC to 0.72
VCC. The battery temperature
is regarded as too high if the
voltage of VTS pin is lower than
0.29 VCC, and is otherwise
regarded as too low if the
voltage of VTS pin is higher
than 0.72 VCC.
Power supply input at 5V
±
10%.
For adjusting the slope of
T/
t.
Acceptable voltage range for
this pin is approximately 0.28V
to 3.8V. If voltage higher than
PIN 5: VCC-
PIN 6: ADJ-
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