LTC4002_15 Datasheet, PDF (9/16 Pages) Linear Technology – Standalone Li-Ion Switch Mode Battery Charger

LTC4002
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
COMP
V_CC
100µA
I_SLOP
R_SLOP
CLK:
I_L
–
C_PWM
+
R_IL
M1
M2
S
Q
R
R
DRIVER
C_EOC
25mV or 10mV
+–
100mV
CA
GATE
SENSE
BAT
VA
4.2V/CELL
M3
90µA
CHRG
360mV
+
C_SD
–
Q4
Q5
25µA
GND
UVLO
4.2V
UV EOC
SD
RQ
LOGIC
C/10
STOP
TEMP
NTC_DISABLE
C_LB
2.9V OR 5V
C_OV
4.62V/CELL
C_RQ
C_COLD
4.05V/CELL
2.465V
V_CC
85µA
NTC
C_HOT
355mV
50mV
4002 BD
4002f
9