LMV7271MF National Semiconductor, LMV7271MF Datasheet - Page 11

• Manufacturer Part Number: LMV7271MF
• Description: IC,VOLT COMPARATOR,SINGLE,TSOP,5PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LMV7271MF

• Rohs Compliant: NO

Application Notes
Non-Inverting Comparator with Hysteresis
A non-inverting comparator with hysteresis requires a two
resistor network, and a voltage reference (V
verting input (Figure 4). When V
low. For the output to switch from low to high, V
up to V
IN1
, where V
IN1
is calculated by
(Continued)
IN
is low, the output is also
FIGURE 3. Inverting Comparator with Hysteresis
REF
IN
) at the in-
must rise
11
When V
comparator switch back to its low state, V
before V
The hysteresis of this circuit is the difference between V
and V
IN2
IN
A
.
will again equal V
is high, the output is also high. To make the
∆V
IN
= V
REF
CC
. V
R
20064042
1
IN
/R
can be calculated by:
2
IN
must equal V
www.national.com
REF
IN1