9

LTC1536

Triple Supply Monitor (3.3V, 5V and Adjustable)

1

2

3

4

8

7

6

5

GND

PBR

SRST

RST

RST

LTC1536

3.3V

SYSTEM RESET

100k

5V

1536 TA09

1

2

3

4

8

7

6

5

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

6

µA

6

µA

3.3V

LTC1536

PUSHBUTTON

RESET

RESET

1536 TA05

OTHER OPEN DRAIN

RESET SOURCES

OR-TIED TO RESET

7

8

PBR

RST

RST

6

5

1

2

3

4

8

7

6

5

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

in a Dual Supply Application