Datasheet

LTC4085-3/LTC4085-4
10
408534fb
BLOCK DIAGRAM
+
–
–
+
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
CC/CV REGULATOR
CHARGER
ENABLE
ENABLE
CURRENT LIMIT
I
LIM_CNTL
V
BUS
IN
SOFT-START
SOFT-START2
CURRENT CONTROL
0.25V
2.9V
BATTERY UVLO
3.85V
RECHARGE
TIMER
OSCILLATOR
COUNTER
STOP
CHRG
EOC
CONTROL LOGIC
RESET
HOLD
RECHRG
BAT_UV
VOLTAGE DETECT
IN OUT BAT
CHARGE CONTROL
100k
100k
NTC_ENABLE
TOO C0LD
TOO HOT
NTC
NTCERR
GND SUSP
+
–
+
–
100k
2k
OUT
GATE
BAT
EDA
IDEAL_DIODE
25mV
25mV
CLK
C/10
I
LIM
CL
1V
1000
500mA/100mA
2µA
CLPROG
HPWR
TA
DIE TEMP
105°C
1V
CHG
PROG
+
–
25mV
ACPR
4.25V
WALL
V
NTC
NTC
0.1V
2µA
408534 BD
3
4
1
12
7
10
9
8
11
6
2
13
14
I
CHRG
UVLO
I
IN