Datasheet

DS1846
11 of 18
TYPICAL APPLICATION Figure 4
Note: NMI can be used to produce a reset, which is shown by the dotted line in Figure 4.
The following equations are used to calculate the resistor values when using V
SENSE
.
V
SENSE
=
R2
R2 R1+
X V
TPmin
V
MAX
=
TP
SENSE
V
V
X V
CC
SDA
SCL
WP
A0
/NMI
L0
W1
L1
L2
GND
Vcc
IN
/RST
/PBRST
RST
H0
W0
H1
W2
H2
DS1846
Vsense
To 2-Wire
Master
Potentiometer
Terminals
Potentiometer
Terminals
Reset
Outputs
Vcc
To Microprocessor
Interrupt
V
CC
O
p
tional
,
see note.
V
CC