MCP6549 Microchip Technology, MCP6549 Datasheet

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MCP6549

Manufacturer Part Number
MCP6549
Description
(MCP6546 - MCP6549) Open-Drain Output Sub-Microamp Comparators
Manufacturer
Microchip Technology
Datasheet

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Features
• Low Quiescent Current: 600 nA/comparator (typ.)
• Rail-to-Rail Input: V
• Open-Drain Output: V
• Propagation Delay 4 µs (typ.)
• 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.)
• Industrial Temperature: -40°C to +85°C
Typical Applications
• 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
M
2003 Microchip Technology Inc.
OUT
V
V
V
V
V
IN
SOT-23-5, SC-70-5
PDIP, SOIC, MSOP
NC
IN
IN
SS
SS
+
+
Open-Drain Output Sub-Microamp Comparators
1
2
3
1
2
3
4
MCP6546
MCP6546
+
-
-
8
7
6
5
5
4
SS
NC
V
OUT
NC
V
V
OUT
DD
- 0.3V to V
DD
IN
10V
OUT
V
V
IN
DD
+
DD
MCP6546-R
1
2
3
SOT-23-5
+ 0.3V
-
5
4
V
V
SS
IN
MCP6546/7/8/9
OUTA
V
V
INA
V
INA
V
V
V
PDIP, SOIC, MSOP
NC
PDIP, SOIC, MSOP
IN
IN
SS
SS
+
+
Description
The Microchip Technology Inc. MCP6546/7/8/9 family
of comparators is offered in single (MCP6546), 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 less than 1 µA/
comparator of quiescent current.
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.
1
2
3
4
1
2
3
4
MCP6547
MCP6548
-
+
-
+
+ -
8
7
6
5
8
7
6
5
CS
V
OUT
NC
V
OUTB
V
V
DD
DD
INB
INB
+
OUTB
OUTA
V
V
V
V
INA
INB
INA
INB
V
PDIP, SOIC, TSSOP
DD
+
+
1
2
3
4
5
6
7
MCP6549
-
-
+
+
DS21714C-page 1
+
+ -
-
14
13
12
11
10
9
8
OUTD
V
V
V
V
V
OUTC
IND
IND
SS
INC
INC
+
+

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