Datasheet

LTC4280
10
4280f
FUNCTIONAL DIAGRAM
1.235V
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
UV
UV
+
–
+
–
+
–
PG
PWRGD
FAULT
CB
25mV
26mV
CS
GATE
SOURCE
FILTER
FET ON
SENSE
–
SENSE
+
FOLDBACK
RST
UV
FB
ON
V
DD
ADIN
OV
EN
0.4V
1.235V
10µA
INTV
CC
1.235V
1.235V
2.84V
15.6V
1.235V
1.235V
0.6V
RESET
OV1
OV
EN
EN
ON
TM1
GP
FAULT
UVLO2
TM2
ON
OV2
OV2
UVLO1
V
DD(UVLO)
CHARGE
PUMP AND
GATE DRIVER
GPI0
1V
TIMER
+
–
0.2V
1.235V
SENSE
+
- SENSE
–
I
2
C ADDR
SOURCE
A/D
CONVERTER
8
100µA
2.64V
3.1V
GEN
2µA
+
–
+
–
1.235V
ADRO
ADR1
4280 BD
ADR2
INTV
CC
+
–
5
SDAI
SCL
ALERT
SDAO
I
2
C
1 OF 27
LOGIC
10µA
2µA