DS1707ESA Datasheet, PDF (4/10 Pages) Maxim Integrated Products – 3.3 and 5.0-Volt MicroMonitor

TIMING DIAGRAM: PUSHBUTTON RESET Figure 4
DS1707/DS1708
NON-MASKABLE INTERRUPT CIRCUIT EXAMPLE Figure 5
R1+ R2
V_SENSE =
X 1.25
R2
V_MAX = ^VSENSE X V_CC
VTP
Example:
V_SENSE = 4.50V at the trip point
V_CC = 3.3V
10 kΩ = R2
Therefore:
4.50 _{X 3.3 = 11.88V maximum}
1.25
4.50 = ^{R1 +10k} X 1.25
10k
R1 = 26 kΩ
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