AIC1804 AIC [Analog Intergrations Corporation], AIC1804 Datasheet - Page 7

• Manufacturer Part Number: AIC1804
• Description: Three- Or Four-Cell Lithium-Ion Battery Protection IC
• Manufacturer: AIC [Analog Intergrations Corporation]

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PIN 1: NSL-
PIN 2: OC-
PIN 3: CS-
BLOCK DIAGRAM
PIN DESCRIPTIONS
UD4
GND
VCC
VC1
VC2
VC3
UD1
UD2
UD3
Input
selection. Connect this pin to
VCC for three-cell application
and
application.
NMOS open drain output
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.
Input pin for current sensing.
Using the drain-source voltage of
the discharge control MOSFET
M1 (voltage between VCC and
CS),
current
and
current
power-down mode.
11
16
14
12
10
15
13
9
8
to
detects whether charging
300
350
400
450
pin
it senses
is
during normal
GND
Voltage
Battery
for
Sense
Circuit
present
cell
for
3
CS
discharge
VCC-0.15V
VCC-0.3V
four-cell
number
during
mode
for
VCC-1V
1.2V
Overdischarge Delay
Overcharge Delay
PIN 4: OD -
PIN 5: TD -
PIN 6: TI -
PIN 7: TC -
PIN 8: GND -
PIN 9: UD4-
PIN10: VC3-
PIN11: UD3 -
Circuit
Overcurrent Delay
Circuit
7
VCC+0.4V
Circuit
TC
5
TD
6
TI
Output pin for control of discharge control M
Overdischarge delay time setting
pin.
Overcurrent delay
pin.
Overcharge delay time setting
pin.
Ground pin. This pin is to be
connected
terminal of the battery cell BAT4.
This pin is to be connected to the
positive terminal of the battery
cell
bleeding
overcharge condition.
Input
voltage sensing. This pin is to be
connected
terminal of the battery cell BAT4.
This pin is to be connected to
Wake-Up Control
BAT4
Power-Down
Control
pin
for
to
to
function
for
AIC1804
2
4
battery
the
the
cell-balancing
time setting
OC
OD
negative
positive
BAT4
under
7