MCP6541/1R/1U/2/3/4
Push-Pull 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
CMOS/TTL-Compatible Output
Propagation Delay: 4 µs (typ., 100 mV Overdrive)
Wide Supply Voltage Range: 1.6V to 5.5V
Available in Single, Dual and Quad
Single available in SOT-23-5, SC-70-5 * packages
Chip Select (CS) with MCP6543
Low Switching Current
Internal Hysteresis: 3.3 mV (typ.)
Temperature Ranges:
- Industrial: -40°C to +85°C
- Extended: -40°C to +125°C
Description
The Microchip Technology Inc. MCP6541/2/3/4 family
of comparators is offered in single (MCP6541,
MCP6541R, MCP6541U), single with Chip Select (CS)
(MCP6543), dual (MCP6542) and quad (MCP6544)
configurations. The outputs are push-pull (CMOS/TTL-
compatible) and are capable of driving heavy DC or
capacitive loads.
These comparators are optimized for low power, single-
supply operation with greater than rail-to-rail input
operation.
The
push-pull
output
of
the
MCP6541/1R/1U/2/3/4 family supports rail-to-rail output
swing and interfaces with TTL/CMOS logic. The internal
input hysteresis eliminates output switching due to inter-
nal input noise voltage, reducing current draw. The out-
put limits supply current surges and dynamic power
consumption while switching. This product family oper-
ates with a single-supply voltage as low as 1.6V and
draws less than 1 µA/comparator of quiescent current.
The related MCP6546/7/8/9 family of comparators from
Microchip has an open-drain output. Used with a pull-up
resistor, these devices can be used as level-shifters for
any desired voltage up to 10V and in wired-OR logic.
* SC-70-5 E-Temp parts not available at this release of
the data sheet.
MCP6541U SOT-23-5 is E-Temp only.
Typical Applications
•
•
•
•
•
•
•
•
Laptop Computers
Mobile Phones
Metering Systems
Hand-held Electronics
RC Timers
Alarm and Monitoring Circuits
Windowed Comparators
Multi-vibrators
Related Devices
• Open-Drain Output: MCP6546/7/8/9
Package Types
MCP6541
PDIP, SOIC, MSOP
NC
V
IN
–
V
IN
+
V
SS
1
2
3
4
-
+
8
7
6
5
NC
V
DD
OUT
NC
MCP6541R
SOT-23-5
OUT 1
V
DD
2
V
IN
+ 3
5 V
SS
MCP6542
PDIP, SOIC, MSOP
1
2
3
4
8
-+
7
+- 6
5
V
DD
MCP6544
PDIP, SOIC, TSSOP
1
2 -+ +-
3
4
14 OUTD
13 V
IND
–
12 V
IND
+
11 V
SS
OUTA
V
INA
–
4 V
IN
– V
INA
+
V
SS
OUTA
OUTB V
INA
–
V
INB
– V
INA
+
V
DD
V
INB
+
MCP6541
SOT-23-5, SC-70-5
OUT 1
V
SS
2
V
IN
+ 3
5 V
DD
-
+
4 V
IN
–
MCP6541U
SOT-23-5
+
-
V
IN
– 1
V
SS
2
V
IN
+ 3
5 V
DD
4 OUT
©
2006 Microchip Technology Inc.
-
+
MCP6543
PDIP, SOIC, MSOP
NC
V
IN
–
V
IN
+
V
SS
1
2
3
4
-
+
8
7
6
5
CS
V
DD
OUT
NC
10 V
INC
+
V
INB
+ 5
V
INB
– 6 - + + - 9 V
INC
–
OUTB 7
8 OUTC
DS21696E-page 1
MCP6541/1R/1U/2/3/4
1.0
ELECTRICAL
CHARACTERISTICS
† 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.
Absolute Maximum Ratings †
V
DD
- V
SS
.........................................................................7.0V
Current at Analog Input Pin (V
IN
+, V
IN
-.........................±2 mA
Analog Input (V
IN
) †† ...................... V
SS
- 1.0V to V
DD
+ 1.0V
All other Inputs and Outputs........... V
SS
- 0.3V to V
DD
+ 0.3V
Difference Input voltage ....................................... |V
DD
- V
SS
|
Output Short-Circuit Current .................................continuous
Current at Input Pins ....................................................±2 mA
Current at Output and Supply Pins ............................±30 mA
Storage temperature .....................................-65°C to +150°C
Maximum Junction Temperature (T
J
) .......................... +150°C
ESD protection on all pins (HBM;MM) ...................4 kV; 400V
†† See
Section 4.1.2 “Input Voltage and Current
Limits”
DC CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated, V
DD
= +1.6V to +5.5V, V
SS
= GND, T
A
= +25°C,V
IN
+ = V
DD
/2,
V
IN–
= V
SS
, and R
L
= 100 kΩ to V
DD
/2 (Refer to
Figure 1-3).
Parameters
Power Supply
Supply Voltage
Quiescent Current per comparator
Input
Input Voltage Range
Common Mode Rejection Ratio
Common Mode Rejection Ratio
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Input Offset Voltage
Drift with Temperature
Input Hysteresis Voltage
Linear Temp. Co.
(Note 2)
Quadratic Temp. Co.
(Note 2)
Input Bias Current
At Temperature (I-Temp parts)
At Temperature (E-Temp parts)
Input Offset Current
Common Mode Input Impedance
Differential Input Impedance
Note 1:
2:
3:
4:
V
CMR
CMRR
CMRR
CMRR
PSRR
V
OS
ΔV
OS
/ΔT
A
V
HYST
TC
1
TC
2
I
B
I
B
I
B
I
OS
Z
CM
Z
DIFF
V
SS
−0.3
55
50
55
63
-7.0
—
1.5
—
—
—
—
—
—
—
—
—
70
65
70
80
±1.5
±3
3.3
6.7
-0.035
1
25
1200
±1
10 ||4
10
13
||2
13
Sym
V
DD
I
Q
Min
1.6
0.3
Typ
—
0.6
Max
5.5
1.0
V
DD
+0.3
—
—
—
—
+7.0
—
6.5
—
—
—
100
5000
—
—
—
Units
V
µA
V
dB
dB
dB
dB
mV
µV/°C
mV
µV/°C
µV/°C
2
pA
pA
pA
pA
Ω||pF
Ω||pF
I
OUT
= 0
Conditions
V
DD
= 5V, V
CM
= -0.3V to 5.3V
V
DD
= 5V, V
CM
= 2.5V to 5.3V
V
DD
= 5V, V
CM
= -0.3V to 2.5V
V
CM
= V
SS
V
CM
= V
SS
(Note 1)
T
A
= -40°C to +125°C, V
CM
= V
SS
V
CM
= V
SS
(Note 1)
T
A
= -40°C to +125°C, V
CM
= V
SS
T
A
= -40°C to +125°C, V
CM
= V
SS
V
CM
= V
SS
T
A
= +85°C, V
CM
= V
SS
(Note 3)
T
A
= +125°C, V
CM
= V
SS
(Note 3)
V
CM
= V
SS
The input offset voltage is the center (average) of the input-referred trip points. The input hysteresis is the difference
between the input-referred trip points.
V
HYST
at different temperatures is estimated using V
HYST
(T
A
) = V
HYST
+ (T
A
- 25°C) TC
1
+ (T
A
- 25°C)
2
TC
2
.
Input bias current at temperature is not tested for SC-70-5 package.
Limit the output current to Absolute Maximum Rating of 30 mA.
DS21696E-page 2
©
2006 Microchip Technology Inc.
MCP6541/1R/1U/2/3/4
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications:
Unless otherwise indicated, V
DD
= +1.6V to +5.5V, V
SS
= GND, T
A
= +25°C,V
IN
+ = V
DD
/2,
V
IN–
= V
SS
, and R
L
= 100 kΩ to V
DD
/2 (Refer to
Figure 1-3).
Parameters
Push-Pull Output
High-Level Output Voltage
Low-Level Output Voltage
Short-Circuit Current
Note 1:
2:
3:
4:
V
OH
V
OL
I
SC
I
SC
V
DD
−0.2
—
—
—
—
—
-2.5, +1.5
±30
—
V
SS
+0.2
—
—
V
V
mA
mA
Sym
Min
Typ
Max
Units
Conditions
I
OUT
= -2 mA, V
DD
= 5V
I
OUT
= 2 mA, V
DD
= 5V
V
DD
= 1.6V (Note
4)
V
DD
= 5.5V (Note
4)
The input offset voltage is the center (average) of the input-referred trip points. The input hysteresis is the difference
between the input-referred trip points.
V
HYST
at different temperatures is estimated using V
HYST
(T
A
) = V
HYST
+ (T
A
- 25°C) TC
1
+ (T
A
- 25°C)
2
TC
2
.
Input bias current at temperature is not tested for SC-70-5 package.
Limit the output current to Absolute Maximum Rating of 30 mA.
AC CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated, V
DD
= +1.6V to +5.5V, V
SS
= GND, T
A
= +25°C, V
IN
+ = V
DD
/2,
Step = 200 mV, Overdrive = 100 mV, and C
L
= 36 pF (Refer to
Figure 1-2
and
Figure 1-3).
Parameters
Rise Time
Fall Time
Propagation Delay (High-to-Low)
Propagation Delay (Low-to-High)
Propagation Delay Skew
Maximum Toggle Frequency
Input Noise Voltage
Note 1:
Sym
t
R
t
F
t
PHL
t
PLH
t
PDS
f
MAX
f
MAX
E
ni
Min
—
—
—
—
—
—
—
—
Typ
0.85
0.85
4
4
±0.2
160
120
200
Max
—
—
8
8
—
—
—
—
Units
µs
µs
µs
µs
µs
kHz
kHz
µV
P-P
(Note 1)
V
DD
= 1.6V
V
DD
= 5.5V
Conditions
10 Hz to 100 kHz
Propagation Delay Skew is defined as: t
PDS
= t
PLH
- t
PHL
.
MCP6543 CHIP SELECT (CS) CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated, V
DD
= +1.6V to +5.5V, V
SS
= GND, T
A
= +25°C, V
IN
+ = V
DD
/2, V
IN
–
= V
SS
,
and C
L
= 36 pF (Refer to Figures 1-1 and 1-3).
Parameters
CS Low Specifications
CS Logic Threshold, Low
CS Input Current, Low
CS High Specifications
CS Logic Threshold, High
CS Input Current, High
CS Input High, V
DD
Current
CS Input High, GND Current
Comparator Output Leakage
CS Dynamic Specifications
CS Low to Comparator Output Low
Turn-on Time
CS High to Comparator Output
High Z Turn-off Time
CS Hysteresis
Sym
V
IL
I
CSL
V
IH
I
CSH
I
DD
I
SS
I
O(LEAK)
t
ON
t
OFF
V
CS_HYST
Min
V
SS
—
0.8 V
DD
—
—
—
—
—
—
—
Typ
—
5.0
—
1
18
–20
1
2
10
0.6
Max
0.2 V
DD
—
V
DD
—
—
—
—
50
—
—
Units
V
pA
V
pA
pA
pA
pA
ms
µs
V
CS = V
DD
CS = V
DD
CS = V
DD
CS = V
SS
Conditions
V
OUT
= V
DD
, CS = V
DD
CS = 0.2 V
DD
to V
OUT
= V
DD
/2,
V
IN
– = V
DD
CS = 0.8 V
DD
to V
OUT
= V
DD
/2,
V
IN
– = V
DD
V
DD
= 5V
©
2006 Microchip Technology Inc.
DS21696E-page 3
MCP6541/1R/1U/2/3/4
CS
t
ON
V
OUT
Hi-Z
-0.6 µA (typ.)
V
IL
V
IH
t
OFF
Hi-Z
-20 pA (typ.)
1 pA (typ.)
V
OUT
V
OL
V
IN
–
V
IN
+ = V
DD
/2
t
PLH
100 mV
V
OH
V
OL
t
PHL
100 mV
I
SS
-20 pA (typ.)
I
CS
1 pA (typ.)
FIGURE 1-1:
Timing Diagram for the CS
Pin on the MCP6543.
FIGURE 1-2:
Diagram.
Propagation Delay Timing
DS21696E-page 4
©
2006 Microchip Technology Inc.
MCP6541/1R/1U/2/3/4
TEMPERATURE CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated, V
DD
= +1.6V to +5.5V and V
SS
= GND.
Parameters
Temperature Ranges
Specified Temperature Range
Operating Temperature Range
Storage Temperature Range
Thermal Package Resistances
Thermal Resistance, 5L-SC-70
Thermal Resistance, 5L-SOT-23
Thermal Resistance, 8L-PDIP
Thermal Resistance, 8L-SOIC
Thermal Resistance, 8L-MSOP
Thermal Resistance, 14L-PDIP
Thermal Resistance, 14L-SOIC
Thermal Resistance, 14L-TSSOP
Note:
θ
JA
θ
JA
θ
JA
θ
JA
θ
JA
θ
JA
θ
JA
θ
JA
—
—
—
—
—
—
—
—
331
256
85
163
206
70
120
100
—
—
—
—
—
—
—
—
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
T
A
T
A
T
A
-40
-40
-65
—
—
—
+85
+125
+150
°C
°C
°C
Note
Sym
Min
Typ
Max
Units
Conditions
The MCP6541/2/3/4 I-Temp parts operate over this extended temperature range, but with reduced perfor-
mance. In any case, the Junction Temperature (T
J
) must not exceed the Absolute Maximum specification
of +150°C.
1.1
Test Circuit Configuration
This test circuit configuration is used to determine the
AC and DC specifications.
V
DD
200 kΩ
200 kΩ
MCP654X
200 kΩ
200 kΩ
V
OUT
36 pF
V
IN
= V
SS
V
SS
= 0V
FIGURE 1-3:
AC and DC Test Circuit for
the Push-Pull Output Comparators.
©
2006 Microchip Technology Inc.
DS21696E-page 5
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