Datasheet

LTC4002
9
4002f
UU
U
PI FU CTIO S
(DFN/SO-8)
hot temperature or rises above 2.465V at cold temperature,
charging is suspended and the internal timer stops. The
CHRG pin output is not affected during this hold state. To
disable the temperature qualification function, ground the
NTC pin.
NC (Pin 10/NA): No Connect.
BLOCK DIAGRA
W
–
+
+
–
C
EOC
25mV or 10mV
DRIVER
+
–
100mV
SENSE
–
+
CA
–
+
VA
–
+
C
LB
–
+
C
OV
–
+
C
RQ
–
+
C
COLD
–
+
C
HOT
–
+
GATE
BAT
4.2V/CELL
2.9V OR 5V
4.62V/CELL
4.05V/CELL
2.465V
355mV
50mV
4002 BD
NTC
V
CC
85µA
TEMP
RQ
UV
LOGIC
NTC_DISABLE
EOC
STOP
SD
C/10
UVLO
4.2V
R
R
S
CLK:
Q
–
+
C
PWM
R
SLOP
I
L
I
SLOP
100µA
R
IL
M1
M2
M3
V
CC
COMP
CHRG
GND
–
+
C
SD
360mV
Q4
Q5
25µA
90µA