Microchip MCP6547 Manual


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2002-2022
Microchip Technology Inc. and its subsidiaries
DS20001714H-page 1
MCP6546/6R/6U/7/8/9
Features
Low Quiescent Current: 600 nA/Comparator (typical)
Rail-to-Rail Input: VSS - 0.3V to VDD + 0.3V
Open-Drain Output: VOUT 10V
Propagation Delay: 4 µs (typical, 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 (typical)
Temperature Ranges:
- Industrial: -40°C to +85°C
- Extended: -40°C to +125°C
Typical Applications
Laptop Computers
Mobile Phones
Metering Systems
Handheld Electronics
RC Timers
Alarm and Monitoring Circuits
Windowed Comparators
• Multivibrators
Related Devices
CMOS/TTL-Compatible Output: MCP6541/2/3/4
Description
The Microchip MCP6546/6R/6U/7/8/9 family of com-
parators, is offered in single (MCP6546, MCP6546R,
MCP6546U), single with Chip Select (CS) (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 MCP6546/6R/6U/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 switch-
ing 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 Microchip MCP6541/2/3/4 family of com-
parators has a push-pull output that supports rail-to-rail
output swing and interfaces with CMOS/TTL logic.
Note that SC-70-5 E-Temp parts are not available at
this release of the data sheet.
The MCP6546U SOT-23-5 is E-Temp only.
Package Types
VIN+
VIN
MCP6546
VSS
VDD
OUT
1
2
3
4
8
7
6
5
-
+
NC
NC
NC
PDIP, SOIC, MSOP
4
1
2
3
-
+
5
SOT-23-5
VDD
OUT
VIN+
VSS
VIN
MCP6546R MCP6547
VINA+
VINA
VSS
1
2
3
4
8
7
6
5
-
OUTA
+-
+
VDD
OUTB
VINB
VINB+
VIN+
VIN
MCP6548
VSS
VDD
OUT
1
2
3
4
8
7
6
5
-
+
NC
CSNC
PDIP, SOIC, MSOP
PDIP, SOIC, MSOP
MCP6549
VINA+
VINA
VSS
1
2
3
4
14
13
12
11
-
OUTA
+-
+
VDD
OUTD
VIND
VIND+
10
9
8
5
6
7OUTB
VINB
VINB+ VINC+
VINC
OUTC
+- -
+
PDIP, SOIC, TSSOP
4
1
2
3
-
+
5
SC-70-5, SOT23-5
VSS
OUT
VIN+
VDD
VIN
MCP6546
4
1
2
3
5
SC-70-5, SOT-23-5
VSS
VIN+
VIN
VDD
OUT
MCP6546U
-
+
Open-Drain Output Sub-Microamp Comparators
MCP6546/6R/6U/7/8/9
DS20001714H-page 2 2002-2022
Microchip Technology Inc. and its subsidiaries
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
VDD - VSS .........................................................................7.0V
Open-Drain Output.............................................. V
SS + 10.5V
Analog Input (VIN+, VIN-)††............. VSS - 1.0V to VDD + 1.0V
All Other Inputs and Outputs .......... V
SS - 0.3V to VDD + 0.3V
Difference Input Voltage ....................................... |V
DD - VSS|
Output Short-Circuit Current ................................Continuous
Current at Input Pins ....................................................±2 mA
Current at Output and Supply Pins ............................±30 mA
Storage Temperature (TS).............................-65°C to +150°C
Maximum Junction Temperature (T
J)..........................+150°C
ESD Protection on all Pins:
(HBM;MM) .....................................2 kV;200V (MCP6546U)
(HBM;MM) ................................ 4 kV; 200V (all other parts)
† Notice: Stresses above those listed under “Absolute Maxi-
mum Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of the
device at those or any other conditions above those indicated
in the operational listings of this specification is not implied.
Exposure to maximum rating conditions for extended periods
may affect device reliability.
†† See Section 4.1.2 “Input Voltage and Current Limits”.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, V
DD = +1.6V to +5.5V, VSS = GND, TA = 25°C, VIN+ = VDD/2,
VIN= VSS, RPU = 2.74 k to VPU = VDD (Refer to ).Figure 1-3
Parameters Sym Min Typ Max Units Conditions
Power Supply
Supply Voltage VDD 1.6 5.5 V VPU V DD
Quiescent Current per
Comparator
IQ0.3 0.6 1 µA IOUT = 0
Input
Input Voltage Range VCMR VSS0.3 — VDD+0.3 V
Common-mode Rejection Ratio CMRR 55 70 dB VDD = 5V, VCM = -0.3V to 5.3V
Common-mode Rejection Ratio CMRR 50 65 dB VDD = 5V, VCM = 2.5V to 5.3V
Common-mode Rejection Ratio CMRR 55 70 dB VDD = 5V, VCM = -0.3V to 2.5V
Power Supply Rejection Ratio PSRR 63 80 dB VCM = V
SS
Input Offset Voltage VOS -7.0 ±1.5 +7.0 mV VCM = V
SS ( )Note 1
Drift with Temperature VOS/ TA ±3 µV/°C TA = -40°C to +125°C, VCM = VSS
Input Hysteresis Voltage VHYST 1.5 3.3 6.5 mV VCM = V
SS ( )Note 1
Linear Temp. Co. TC1 6.7 µV/°C TA = -40°C to +125°C, VCM = VSS
( )Note 2
Quadratic Temp. Co. TC2 -0.035 — µV/°C2TA = -40°C to +125°C, VCM = VSS
( )Note 2
Input Bias Current IB 1 pA VCM = VSS
At Temperature (I-Temp parts) IB 25 100 pA TA
= +85°C, VCM = VSS ( )Note 3
At Temperature (E-Temp parts) IB 1200 5000 pA TA
= +125°C, VCM = VSS
( )Note 3
Input Offset Current IOS ±1 pA VCM = VSS
Note 1: The input offset voltage is the center of the input-referred trip points. The input hysteresis is the difference
between the input-referred trip points.
2: VHYST at differential temperatures is estimated using:
VHYST (TA) = VHYST + (TA -25°C) TC1 + (TA - 25°C)2TC2.
3: Input bias current at temperature is not tested for the SC-70-5 package.
4: Do not short the output above V
SS
+ 10V. Limit the output current to Absolute Maximum Rating of 30 mA.
The minimum V
PU test limit was VDD before Dec. 2004 (week code 52).


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Model: MCP6547

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