MCP6561-E/MC Microchip Technology, MCP6561-E/MC Datasheet - Page 16

• Manufacturer Part Number: MCP6561-E/MC
• Description: Comparator ICs SNGL 18V Push/Pull Comparator E temp
• Manufacturer: Microchip Technology

Specifications of MCP6561-E/MC

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP6561/1R/2/4
A significant amount of current can flow out of the
inputs when the common mode voltage (V
ground (V
high impedance may need to limit the usable voltage
range.
4.1.3
The MCP6561/1R/2/4 comparator family uses CMOS
transistors at the input. They are designed to prevent
phase inversion when the input pins exceed the supply
voltages.
both supplies with no resulting phase inversion.
4.2
The push-pull output is designed to be compatible with
CMOS and TTL logic, while the output transistors are
configured to give rail-to-rail output performance. They
are driven with circuitry that minimizes any switching
current (shoot-through current from supply-to-supply)
when the output is transitioned from high-to-low, or
from low-to-high (see
more information).
4.3
Greater flexibility in selecting hysteresis (or input trip
points) is achieved by using external resistors. Hyster-
esis reduces output chattering when one input is slowly
moving past the other. It also helps in systems where it
is best not to cycle between high and low states too fre-
quently (e.g., air conditioner thermostatic control).
Output chatter also increases the dynamic supply
current.
4.3.1
Figure 4-4
supply applications using just two resistors. The
resulting hysteresis diagram is shown in
FIGURE 4-4:
Hysteresis for Single-Supply.
DS22139A-page 16
V
IN
V
Push-Pull Output
Externally Set Hysteresis
REF
Figure 2-3
SS
shows a non-inverting circuit for single-
PHASE REVERSAL
NON-INVERTING CIRCUIT
); see
R
1
Figure
shows an input voltage exceeding
Figure 2-15
Non-Inverting Circuit with
+
-
MCP656X
2-32. Applications that are
V
DD
R
F
and
Figure 2-18
Figure
CM
V
) is below
OUT
4-5.
for
FIGURE 4-5:
Non-Inverting Circuit.
The trip points for
EQUATION 4-1:
V
V
V
V
OH
DD
OL
SS
V
SS
V
V
V THL
V TLH
High-to-Low
V
TLH
THL
OUT
= trip voltage from low to high
= trip voltage from high to low
=
=
Figure 4-4
V REF 1
V REF 1
V
THL
Hysteresis Diagram for the
© 2009 Microchip Technology Inc.
⎛
⎜
⎝
⎛
⎜
⎝
V
+
+
TLH
------ -
R F
------ -
R F
R 1
and
R 1
⎞
⎟
⎠
⎞
⎟
⎠
Low-to-High
Figure 4-5
–
–
V OH
V OL
⎛
⎜
⎝
⎛
⎜
⎝
------ -
R F
V
R 1
------ -
R F
R 1
DD
⎞
⎟
⎠
⎞
⎟
⎠
are:
V
IN