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  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP6546U Datasheet

Open-Drain Output Sub-Microamp Comparators

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MCP6546/6R/6U/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., 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
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,
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.
Package Types
MCP6546
PDIP, SOIC, MSOP
NC 1
VIN– 2
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
MCP6546R
SOT-23-5
OUT 1
VDD 2
VIN+ 3
5 VSS
4 VIN
MCP6546U
SOT-23-5
VIN– 1
VSS 2
VIN+ 3
5 VDD
4 OUT
MCP6547
PDIP, SOIC, MSOP
MCP6549
PDIP, SOIC, TSSOP
OUTA 1
VINA– 2 - +
8 VDD OUTA 1
14 OUTD
7 OUTB VINA– 2 - + + - 13 VIND
VINA+ 3
VSS 4
+ - 6 VINB– VINA+ 3
5 VINB+ VDD 4
12 VIND+
11 VSS
MCP6548
PDIP, SOIC, MSOP
NC 1
VIN– 2
VIN+ 3
VSS 4
-
+
8 CS
7 VDD
6 OUT
5 NC
VINB+ 5
VINB– 6
OUTB 7
10 VINC+
- + + - 9 VINC
8 OUTC
© 2006 Microchip Technology Inc.
DS21714E-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP6546U Datasheet

Open-Drain Output Sub-Microamp Comparators

No Preview Available !

MCP6546/6R/6U/7/8/9
www.DataSheet4U.com
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
VDD - VSS .........................................................................7.0V
Open-Drain output............................................... VSS + 10.5V
Analog Input (VIN+, VIN-)††............. VSS - 1.0V to VDD + 1.0V
All other 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) .....................................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, VDD = +1.6V to +5.5V, VSS = GND, TA = 25°C, VIN+ = VDD/2, VIN– = VSS,
RPU = 2.74 kΩ to VPU = VDD (Refer to Figure 1-3).
Parameters
Sym
Min Typ Max Units
Conditions
Power Supply
Supply Voltage
Quiescent Current
(per comparator)
VDD
1.6 —
5.5 V VPU VDD
IQ
0.3 0.6
1 µA IOUT = 0
Input
Input Voltage Range
VCMR VSS 0.3 — 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 = VSS
Input Offset Voltage
VOS -7.0 ±1.5 +7.0 mV VCM = VSS (Note 1)
Drift with Temperature
ΔVOS/ΔTA
±3
— µV/°C TA = -40°C to +125°C, VCM = VSS
Input Hysteresis Voltage
VHYST 1.5 3.3
6.5 mV VCM = VSS (Note 1)
Linear Temp. Co.
Quadratic Temp. Co.
TC1
— 6.7
— µV/°C TA = -40°C to +125°C, VCM = VSS (Note 2)
TC2
— -0.035
— µV/°C2 TA = -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
Common Mode Input Impedance
Differential Input Impedance
IOS
ZCM
ZDIFF
— ±1 — pA VCM = VSS
— 1013||4 — Ω||pF
— 1013||2 — Ω||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: 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 VSS + 10V. Limit the output current to Absolute Maximum Rating of 30 mA. The minimum
VPU test limit was VDD before Dec. 2004 (week code 52).
DS21714E-page 2
© 2006 Microchip Technology Inc.


Part Number MCP6546U
Description Open-Drain Output Sub-Microamp Comparators
Maker Microchip Technology
Total Page 30 Pages
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