Datasheet

LTC3677-3
18
36773f
block DiagraM
+
–
39
+
–
15mV
V
OUT
UVLO
IDEAL
DIODE
CC/CV
CHARGER
EXTERNAL
POWER DETECT
500mA, 2.25MHz
BUCK REGULATOR 1
INPUT
CURRENT
LIMIT
OVERTEMP BATTERY
SAFETY DISCHARGER
OVERVOLTAGE
PROTECTON
BATTERY
TEMP
MONITOR
I
LIM
LOGIC
I
2
C
LOGIC
0.8V
EN
EN
PG
500mA, 2.25MHz
BUCK REGULATOR 2
0.8V
EN
PG
PG
800mA, 2.25MHz
BUCK REGULATOR 3
0.8V
PGOOD
EN
0.8V
150mA
LDO1
ENB
37
IDGATE
38
BAT
32
V
IN12
36
PROG
33
SW1
26
FB1
25
FB2
5
SW3
7
FB3
31
SW2
27
V
INLD01
6
V
IN3
28
21
DV
CC
10
EN3
17
PBSTAT
16
NC
3, 9, 18, 19, 20, 22
LDO1
23
LDO1_FB
0.8V
150mA
LDO2
30
V
INLD02
29
LDO2
24
45
LDO2_FB
36773 BD
230ms FALLING
DELAY
CHRG
44
CHARGE
STATUS
GND
SDA
11
SCL
12
PWR_ON
14
NTC
35
NTCBIAS
34
CLPROG
43
V
BUS
OVSENS
40
I
LIM1
2
I
LIM0
1
ON
15
PUSH-
BUTTON
INPUT
8
OVGATE
13
EXTPWR
42
ACPR
41
WALL
DETECT
WALL
4
14ms
RISING
DELAY
+
–
+
–
+
–
+
–
+
–