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  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP6547 Datasheet

(MCP6546 - MCP6549) Open-Drain Output Sub-Microamp Comparators

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MCP6546/7/8/9
Open-Drain Output Sub-Microamp Comparators
Features
• Low Quiescent Current: 600 nA/comparator (typ.)
• Rail-to-Rail Input: VSS - 0.3V to VDD + 0.3V
• Open-Drain Output: VOUT 10V
• 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
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.
Package Types
MCP6546
PDIP, SOIC, MSOP
NC 1
VIN2
VIN+ 3
VSS 4
-
+
8 NC
7 VDD
6 OUT
5 NC
MCP6546
SOT-23-5, SC-70-5
OUT 1
VSS 2
VIN+ 3
5 VDD
4 VIN
MCP6546-R
SOT-23-5
OUT 1
VDD 2
VIN+ 3
5 VSS
4 VIN
MCP6547
PDIP, SOIC, MSOP
MCP6549
PDIP, SOIC, TSSOP
OUTA 1
VINA2
VINA+ 3
VSS 4
-+
+-
8 VDD OUTA 1
7 OUTB VINA2
6 VINB– VINA+ 3
5 VINB+ VDD 4
14 OUTD
- + + - 13 VIND
12 VIND+
11 VSS
MCP6548
PDIP, SOIC, MSOP
NC 1
VIN2
VIN+ 3
VSS 4
-
+
8 CS
7 VDD
6 OUT
5 NC
VINB+ 5
VINB6
OUTB 7
10 VINC+
- + + - 9 VINC
8 OUTC
2003 Microchip Technology Inc.
DS21714C-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP6547 Datasheet

(MCP6546 - MCP6549) Open-Drain Output Sub-Microamp Comparators

No Preview Available !

MCP6546/7/8/9
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1.0 ELECTRICAL
CHARACTERISTICS
1.1 Absolute Maximum Ratings †
VDD - VSS ..............................................................7.0V
Open-Drain output..................................... VSS +10.5V
All inputs and outputs ........... VSS –0.3V to VDD +0.3V
Difference Input voltage ............................ |VDD - VSS|
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 (TJ) ............... +150°C
ESD protection on all pins (HBM;MM)..........4 kV;200V
† Notice: Stresses above those listed under “Maximum Rat-
ings” 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. Expo-
sure to maximum rating conditions for extended periods may
affect device reliability.
PIN FUNCTION TABLE
NAME
FUNCTION
VIN+, VINA+, VINB+, VINC+, VIND+ Non-Inverting Inputs
VIN–, VINA–, VINB–, VINC–, VIND– Inverting Inputs
VDD Positive Power Supply
VSS Negative Power Supply
OUT, OUTA, OUTB, OUTC,
Outputs
OUTD
CS Chip Select
NC Not Connected
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, VDD = +1.6V to +5.5V, VSS = GND, TA = 25°C, VIN+ = VDD/2, VIN– = VSS,
RPU = 2.74 kto VPU = VDD (Refer to Figure 1-3).
Parameters
Sym
Min Typ Max Units
Conditions
Power Supply
Supply Voltage
Quiescent Current per comparator
Input
VDD
IQ
1.6 —
0.3 0.6
5.5 V
1 µA IOUT = 0
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
Drift with Temperature
Drift with Temperature
Input Bias Current
Over Temperature
Input Offset Current
Common Mode Input Impedance
Differential Input Impedance
Open-Drain Output
VCMR
CMRR
VSS 0.3
55
CMRR
50
CMRR
55
PSRR
63
VOS
VOS/TA
-7.0
VHYST
VHYST/TA
VHYST/TA
IB
IB
IOS
ZCM
ZDIFF
1.5
70
65
70
80
±1.5
±3
3.3
10
5
1
±1
1013||4
1013||2
VDD + 0.3
+7.0
6.5
100
V
dB VDD = 5V, VCM = -0.3V to 5.3V
dB VDD = 5V, VCM = 2.5V to 5.3V
dB VDD = 5V, VCM = -0.3V to 2.5V
dB VCM = VSS
mV VCM = VSS (Note 1)
µV/°C TA = -40°C to +85°C, VCM = VSS
mV VCM = VSS (Note 1)
µV/°C TA = -40°C to +25°C, VCM = VSS
µV/°C TA = +25°C to +85°C, VCM = VSS
pA VCM = VSS
pA TA = -40°C to +85°C, VCM = VSS (Note 3)
pA VCM = VSS
||pF
||pF
Output Pull-Up Voltage
VPU
VDD
10
V (Note 2)
High-Level Output Current
IOH
-100
— nA VDD = 1.6V to 5.5V, VPU = 10V (Note 2)
Low-Level Output Voltage
VOL VSS — VSS + 0.2 V IOUT = 2 mA, VPU = VDD = 5V
Short-Circuit Current
ISC
— ±50
— mA VPU = VDD = 5.0V (Note 2)
Output Pin Capacitance
COUT
—8
— pF
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: Do not short the output above VSS + 10V. Limit the output current to Absolute Maximum Rating of 30 mA. The
comparator does not function properly when VPU < VDD.
3: Input bias current overtemperature is not tested for the SC-70-5 package.
DS21714C-page 2
2003 Microchip Technology Inc.


Part Number MCP6547
Description (MCP6546 - MCP6549) Open-Drain Output Sub-Microamp Comparators
Maker Microchip Technology
Total Page 28 Pages
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