Datasheet

LTC4222
10
4222fb
FUNCTIONAL DIAGRAM
–
+
UV
1.235V
UVS
RESET
COUPLE
OVS
V
DD
UVLO
0.4V
1.235V
1.235V
INTV
CC
2.43V
I
2
C
5
I
2
C ADDR
UV
–
+
RST
1.235V
–
+
0.2V
0.6V
PWRGD
FET ON
FAULT
PG
–
+
OV1
–
+
EN
EN
+
–
–
+
1.235V
–
+
0.2V
TM2
UVLO2
–
+
–
+
UVLO1
FB
OV
EN
1.235V
–
+
V
DD
10µA
SDAI (SSOP)
CONFIG
SS
SDAO (SSOP)
SDA (QFN)
1 OF 27
2.64V
V
CC
UVLO
4222 BD
INTV
CC
TIMER
2x
1x
GPIO
INTV
CC
V
DD2
100µA
1V
2µA
10 BIT
3.3V
GEN
TM1
SOURCE
GATE
–
+
CS
–
+
CB
SENSE
+
(SSOP)SENSE
–
CHARGE
PUMP
AND
GATE
DRIVER
FOLDBACK
and DIDT
0mV TO
150mV
GP
–
+
ON
ADR2
ADR1
ADR0
ONS
1.235V
ON
SOURCE1
V
DDA
– SENSE1
SOURCE2
V
DDB
– SENSE2
A/D CONVERTER
SCL
ALERT
+
–
50mV
+
–
ADIN1
ADIN2
LOGIC
SOFT-START