MCP6546/6R/6U/7/8/9
Open-Drain Output Sub-Microamp Comparators
Features
•
•
•
•
•
•
•
•
•
•
•
Low Quiescent Current: 600 nA/comparator (typ.)
Rail-to-Rail Input: V
SS
- 0.3V to V
DD
+ 0.3V
Open-Drain Output: V
OUT
≤
10V
Propagation Delay: 4 µs (typ., 100 mV Overdrive)
Wide Supply Voltage Range: 1.6V to 5.5V
Single available in SOT-23-5, SC-70-5 * packages
Available in Single, Dual and Quad
Chip Select (CS) with MCP6548
Low Switching Current
Internal Hysteresis: 3.3 mV (typ.)
Temperature Range:
- Industrial: -40°C to +85°C
- Extended: -40°C to +125°C
Description
The Microchip Technology Inc. MCP6546/7/8/9 family
of comparators is offered in single (MCP6546,
MCP6546R, MCP6546U), single with chip select
(MCP6548), dual (MCP6547) and quad (MCP6549)
configurations. The outputs are open-drain and are
capable of driving heavy DC or capacitive loads.
These comparators are optimized for low power,
single-supply application with greater than rail-to-rail
input operation. The output limits supply current surges
and dynamic power consumption while switching. The
open-drain output of the MCP6546/7/8/9 family can be
used as a level-shifter for up to 10V using a pull-up
resistor. It can also be used as a wired-OR logic. The
internal Input hysteresis eliminates output switching
due to internal noise voltage, reducing current draw.
These comparators operate with a single-supply
voltage as low as 1.6V and draw a quiescent current of
less than 1 µA/comparator.
The related MCP6541/2/3/4 family of comparators from
Microchip has a push-pull output that supports rail-to-
rail output swing and interfaces with CMOS/TTL logic.
* SC-70-5 E-Temp parts not avaliable at this release
of
the data sheet
.
MCP6546U SOT-23-5 is E-Temp only.
Typical Applications
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Laptop Computers
Mobile Phones
Metering Systems
Hand-held Electronics
RC Timers
Alarm and Monitoring Circuits
Windowed Comparators
Multi-vibrators
Related Devices
• CMOS/TTL-Compatible Output: MCP6541/2/3/4
Package Types
MCP6546
PDIP, SOIC, MSOP
NC
V
IN
–
V
IN
+
V
SS
1
2
3
4
-
+
8
7
6
5
NC
V
DD
OUT
NC
OUT 1
V
DD
2
V
IN
+ 3
MCP6546R
SOT-23-5
5 V
SS
MCP6547
PDIP, SOIC, MSOP
1
2
3
4
8
- +
7
+ - 6
5
V
DD
MCP6549
PDIP, SOIC, TSSOP
OUTA 1
14 OUTD
- + + - 13 V
IND
–
12 V
IND
+
11 V
SS
- + +- 9 V –
INC
10 V
INC
+
8 OUTC
OUTA
V
INA
–
4 V
IN
– V
INA
+
V
SS
OUTB V
INA
– 2
V
INB
– V
INA
+ 3
V
INB
+
V
DD
4
V
INB
+ 5
V
INB
– 6
OUTB 7
MCP6546
SOT-23-5, SC-70-5
OUT 1
V
SS
2
V
IN
+ 3
5 V
DD
-
+
4 V
IN
–
MCP6546U
SOT-23-5
+
-
V
IN
– 1
V
SS
2
V
IN
+ 3
5 V
DD
4 OUT
©
2006 Microchip Technology Inc.
-
+
MCP6548
PDIP, SOIC, MSOP
NC
V
IN
–
V
IN
+
V
SS
1
2
3
4
-
+
8
7
6
5
CS
V
DD
OUT
NC
DS21714E-page 1
MICROCHIP [ MICROCHIP TECHNOLOGY ]
