ds1831bst-r Maxim Integrated Products, Inc., ds1831bst-r Datasheet - Page 6

• Manufacturer Part Number: ds1831bst-r
• Description: Ds1831, Ds1831a, Ds1831b Multisupply Micromonitor
• Manufacturer: Maxim Integrated Products, Inc.

TIMING DIAGRAM—5V OR 3.3V PUSHBUTTON RESET Figure 5
OPERATION—PUSHBUTTON STATUS
The DS1831B provides a master pushbutton status open drain output. The
status of the most recent reset condition. If the last reset was generated by the master pushbutton input it
would maintain a low condition until cleared by another event (except the master pushbutton) generating
a reset. Once cleared it will remain high until the master pushbutton is pulled low generating a reset
condition. The
valid condition. The value of the pull up resistor is not critical in most cases but must be set low enough
to pull the output to a high state. A common value used is 10kW (see Figure 6).
DS1831B APPLICATION EXAMPLE Figure 6
PBRST
(or PBRST
V
SENSE2
RST
5V
PBST
5V
3.3V
V
(or RST
SENSE1
)
output is open drain and will require a pull-up resistor on the output to maintain a
V
3.3V
5V Supply
IL
t
PBRST
)
PDLY
RST
TOL
TD
GND
IN
IN2
IN1
5V
5V
5V
5V
5V
t
1
2
3
4
5
6
7
8
PB
DS1831B
V
IL
16
15
14
13
12
11
10
9
IN
RST
TOL
TD
PBST
NMI1
NMI2
MPBRST
6 of 14
3.3V
3.3V
3.3V
3.3V
V
t
3.3V Supply
IH
RST
V
CC
V
OH
10 kW
V
PBST
CC
10kW
output indicates the