ds1831bst-r Maxim Integrated Products, Inc., ds1831bst-r Datasheet - Page 8

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

The output associated with the specific input will be held low if the voltage on the input pin is less than
1.25V. If the voltage is above 1.25V the output will not sink current and will be pulled up by the required
pull up resistor. The value of the resistors 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. If a
input an additional pull-up resistor can be used (to improve speed of transitions) but is not required.
During a power-up, any detected IN pin levels above V
an inactive (high) interrupt until at least 1 supply on the V
will be held active (low) until at least one V
based on the value of the associated IN input.
TIMING DIAGRAM—NON-MASKABLE INTERRUPT Figure 8
V
NMI
IN
>1.25V
V
TP(max)
V
TP
V
TP(min)
V
OL
t
IPD
IN
reaches 1.5 volts at which point the
8 of 14
TP
V
by the comparator are disabled from generating
IN
TP(min)
inputs rises above 1.5 volts. All NMI outputs
NMI
output is connected to a pushbutton
V
TP
V
V
TP(max)
OH
t
NMI
NMI
outputs will be