Datasheet

LTC3577/LTC3577-1
19
3577fa
BLOCK DIAGRAM
+
–
39
+
–
15mV
V
OUT
HRST UVLO
IDEAL
DIODE
CC/CV
CHARGER
WALL
DETECT
500mA, 2.25MHz
BUCK REGULATOR
INPUT
CURRENT
LIMIT
OVERTEMP BATTERY
SAFETY DISCHARGE
OVERVOLTAGE
PROTECTON
BATTERY
TEMP
MONITOR
I
LIM
LOGIC
I
2
C
LOGIC
40V LED BACKLIGHT
BOOST CONVERTER
0.8V
EN
PG
500mA, 2.25MHz
BUCK REGULATOR
0.8V
EN
PG
800mA, 2.25MHz
BUCK REGULATOR
0.8V
PG_DCDC
EN
PG
0.8V
150mA
LDO1
EN
37
IDGATE
38
BAT
32
V
IN12
36
PROG
33
SW1
26
FB1
25
FB2
5
SW3
7
FB3
31
SW2
23
V
INLD01
6
V
IN3
28
21
DV
CC
10
PBSTAT
16
SW
18,19,20
LED_OV
21
LDO1
27
LDO1_FB
0.8V
150mA
LDO2
EN
30
V
INLD02
29
LDO2
24
45
LDO2_FB
3577 BD
230ms
FALLING
DELAY
CHRG
44
CHRGE
STATUS
I
LED
22
LED_FS
3
DAC
0.8V
GND
SDA
11
SCL
12
PWR_ON
14
NTC
35
NTCBIAS
34
CLPROG
43
V
BUS
OVSENS
40
I
LIM1
2
I
LIM0
1
WAKE
17
ON
15
PUSH-
BUTTON
INPUT
8
OVGATE
13
WALL
4
ACPR
41
V
C
CONTROL
V
C
42