Datasheet

9
LTC1536
1536fa
TYPICAL APPLICATIONS N
U
Triple Supply Monitor (3.3V, 5V and Adjustable)
1
2
3
4
8
7
6
5
V
CC3
V
CC5
V
CCA
GND
PBR
SRST
RST
RST
LTC1536
3.3V
SYSTEM RESET
100k
5V
1536 TA09
1
2
3
4
8
7
6
5
V
CC3
V
CC5
V
CCA
GND
PBR
SRST
RST
RST
LTC1536
3.3V
SYSTEM RESET
*OPTIONAL RESISTOR EXTENDS
ESD TOLERANCE OF PBR INPUT
8kV TO 10kV
5V
R2
R1
1536 TA03
ADJUSTABLE SUPPLY
OR DC/DC FEEDBACK
DIVIDER
10k*
PUSHBUTTON
RESET
SRST Tied to RST and OR-Tying Other Sources to RST to
Generate Reset and Reset
4.7k
SRST
6µA
6µA
3.3V
LTC1536
PUSHBUTTON
RESET
RESET
1536 TA05
OTHER OPEN DRAIN
RESET SOURCES
OR-TIED TO RESET
7
8
PBR
RST
RST
V
CC3
6
5
1
2
3
4
8
7
6
5
V
CC3
V
CC5
V
CCA
GND
PBR
SRST
RST
RST
LTC1536
3.3V
SYSTEM RESET
5V
22.1k
1%
1536 TA07
35.7k
1%
LTC1435
ADJUSTABLE
RESET TRIP
THRESHOLD 2.74V
2.9V
2.8k
1%
6
V
OSENSE
Using V
CCA
Tied to DC/DC Feedback Divider
RESET Valid for V
CC3
Down to 0V
in a Dual Supply Application