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MCP65R46 Datasheet

Download or read online Microchip Technology MCP65R46 3 μA Comparator With Integrated Reference Voltage pdf datasheet.



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3 µA Comparator with Integrated Reference Voltage
Features:
• Factory Set Reference Voltage
- Available Voltage: 1.21V and 2.4V
- Tolerance: ±1% (typical)
• Low Quiescent Current: 2.5 µA (typical)
• Propagation Delay: 4 µs with 100 mV Overdrive
• Input Offset Voltage: ±3mV (typical)
• Rail-to-Rail Input: V
- 0.3V to V
SS
DD
• Output Options:
- MCP65R41  Push-Pull
- MCP65R46 Open-Drain
• Wide Supply Voltage Range: 1.8V to 5.5V
• Packages: SOT23-6
Typical Applications:
• Laptop Computers
• Mobile Phones
• Hand-held Metering Systems
• Hand-held Electronics
• RC Timers
• Alarm and Monitoring Circuits
• Window Comparators
Design Aids:
• Microchip Advanced Part Selector (MAPS)
• Analog Demonstration and Evaluation Boards
Typical Application
Over-Temperature Alert
V
REF
V
DD
R
4
V
REF
Thermistor
R
2
R
R
3
* Pull-up resistor required for the MCP65R46 only.
 2010-2011 Microchip Technology Inc.
MCP65R41/6
Description:
The Microchip Technology Inc. MCP65R41/6 family of
push-pull and open-drain output comparators are
offered with integrated reference voltages of 1.21V and
2.4V. This family provides ±1% (typical) tolerance while
consuming 2.5 µA (typical) current. These comparators
operate with a single-supply voltage as low as 1.8V to
5.5V, which makes them ideal for low cost and/or
battery powered applications.
+ 0.3V
These comparators are optimized for low-power,
single-supply applications with greater than rail-to-rail
input operation. The output limits supply current surges
and dynamic power consumption while switching. The
internal input hysteresis eliminates output switching
due to internal noise voltage, reducing current draw.
The MCP65R41 output interfaces to CMOS/TTL logic.
The open-drain output device MCP65R46 can be used
as a level-shifter from 1.6V to 10V using a pull-up
resistor. It can also be used as a wired-OR logic.
This family of devices is available in the 6-lead SOT-23
package.
Package Types
V
PU
R
*
PU
V
OUT
F
MCP65R41/6
SOT23-6
OUT
1
6
V
DD
2
V
5
V
SS
REF
+IN
3
4
-IN
DS22269B-page 1

Summary of Contents

Page 1

... The MCP65R41 output interfaces to CMOS/TTL logic. The open-drain output device MCP65R46 can be used as a level-shifter from 1.6V to 10V using a pull-up resistor. It can also be used as a wired-OR logic. This family of devices is available in the 6-lead SOT-23 package ...

Page 2

... MCP65R41/6 NOTES: DS22269B-page 2 2010-2011 Microchip Technology Inc. ...

Page 3

... Limit the output current to Absolute Maximum Rating not short the output of the MCP65R46 comparators above V 4: The low-power reference voltage pin is designed to drive small capacitive loads. See 2010-2011 Microchip Technology Inc. Notice: Stresses above those listed under Maximum Ratings” ...

Page 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. 2: Limit the output current to Absolute Maximum Rating not short the output of the MCP65R46 comparators above V 4: The low-power reference voltage pin is designed to drive small capacitive loads. See DS22269B-page 4 1.8V to 5.5V, V ...

Page 5

... AC CHARACTERISTICS Unless otherwise indicated, all limits are specified for /2, Step 200 mV, Overdrive 100 mV 2.74 k (MCP65R46 only), and C Pull-Up DD Parameters Rise Time Fall Time Propagation Delay (High-to-Low) Propagation Delay (Low-to-High) Propagation Delay Skew Maximum Toggle Frequency ...

Page 6

... MCP65R41/6 NOTES: DS22269B-page 6 2010-2011 Microchip Technology Inc. ...

Page 7

... A -6.0 -8.0 -10.0 -0.3 0.0 0.3 0.6 0.9 1.2 V (V) CM FIGURE 2-3: Input Offset Voltage vs. Common-Mode Input Voltage. 2010-2011 Microchip Technology Inc. 1.8V to 5.5V GND 25° 2.74 k (MCP65R46 only) and C Pull-Up DD 60 Avg. 9.86 µV/°C 50 StDev 4.97 µV/°C 850 Units 40 30% 20% 10 ...

Page 8

... StDev 0.13 mV 850 units 20% 15% 10 1.0 1.5 2.0 2.5 3.0 3.5 V (mV) HYST FIGURE 2-9: Input Hysteresis Voltage at 125°C. DS22269B-page 8 1.8V to 5.5V GND 25° 2.74 k (MCP65R46 only) and C Pull- 1.8V DD Avg. 2.4 mV 70% StDev 0.17 mV 60% 850 units 50% 40% 30% 20% 10 -40° 4.0 4.5 5.0 0 FIGURE 2-10: Drift Linear Temperature Compensation (TC1). ...

Page 9

... A 3.0 2.0 1.0 1.5 2.5 3.5 4.5 V (V) DD FIGURE 2-15: Input Hysteresis Voltage vs. Supply Voltage vs. Temperature. 2010-2011 Microchip Technology Inc. 1.8V to 5.5V GND 25° 2.74 k (MCP65R46 only) and C Pull-Up DD 100% Temp -40°C 90% Avg. 1.93 µA 80% StDev 0.08 µA 70% 60% 50% 40% 30% V 20% DD 850 units 10% 0% 0.0 1.5 1 ...

Page 10

... - -40° 25° 85°C A -120 0.0 1.0 2.0 3.0 4.0 V (V) DD FIGURE 2-21: Short Circuit Current vs. Supply Voltage vs. Temperature. DS22269B-page 10 1.8V to 5.5V GND 25° 2.74 k (MCP65R46 only) and C Pull-Up DD 4.0 V 3.5 3.0 2.5 2.0 1.5 Sweep V 1.0 0.5 0.0 -1.0 5.0 6.0 FIGURE 2-22: Common-Mode Input Voltage. 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1 10k 100k 100000 FIGURE 2-23: Up Voltage ...

Page 11

... Prop. Delay (µs) FIGURE 2-27: Low-to-High and High-to-Low Propagation Delays. 2010-2011 Microchip Technology Inc. 1.8V to 5.5V GND 25° 2.74 k (MCP65R46 only) and C Pull- 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 8.0 10.0 FIGURE 2-28: Output Current. 80% t PLH 70% Avg. 2.5 µ ...

Page 12

... Over-Drive PHL 100 mV Over-Drive PLH 4 0 1.5 2.5 3.5 V (V) DD FIGURE 2-33: Propagation Delay vs. Supply Voltage. DS22269B-page 12 1.8V to 5.5V GND 25° 2.74 k (MCP65R46 only) and C Pull- MCP65R41 100 mV Over-Drive PLH 3 t PHL 0.0 2.00 FIGURE 2-34: Common-Mode Input Voltage. ...

Page 13

... PLH 10 t PLH 5 0 0.001 0.01 0.1 Over-Drive (mV) FIGURE 2-39: Propagation Delay vs. Input Over-Drive. 2010-2011 Microchip Technology Inc. 1.8V to 5.5V GND 25° 2.74 k (MCP65R46 only) and C Pull- 100mV Over-Drive MCP65R41 100 125 -50 -25 FIGURE 2-40: Temperature. ...

Page 14

... DD CM Avg. -0.02 mV/V Avg. 0.5 mV/V 20% StDev 0.54 mV/V StDev 1.14 mV/V 10 CMRR (mV/V) FIGURE 2-45: Common-Mode Rejection Ratio. DS22269B-page 14 1.8V to 5.5V GND 25° 2.74 k (MCP65R46 only) and C Pull-Up DD 80% MCP65R41 100 mV Over-Drive 70 5.5V 60% 50% 40% 30% 20% 10 0.5 1.0 FIGURE 2-46 MCP65R41 ...

Page 15

... T 125°C 1E 1E00 -0.8 -0.6 -0.4 Input Voltage (V) FIGURE 2-51: Input Bias Current vs. Input Voltage vs. Temperature. 2010-2011 Microchip Technology Inc. 1.8V to 5.5V GND 25° 2.74 k (MCP65R46 only) and C Pull-Up DD 30% 25% 20% 15% 10 100 125 -500 FIGURE 2-52: Ratio. 1.235 V 5.5V 1.230 DD 1.225 1 ...

Page 16

... 125°C 2.37 A 2.35 -0.5 -0.3 -0.1 0.1 I (µA) REF FIGURE 2-57: V vs. I REF REF Temperature. DS22269B-page 16 1.8V to 5.5V GND 25° 2.74 k (MCP65R46 only) and C Pull-Up DD 1.235 V 1.8V DD 1.230 1.225 1.220 1.215 1.210 1.205 1.200 1.195 1.190 1.185 0.3 0.5 -50 over FIGURE 2-58: 2. 5.5V DD 2.43 2 ...

Page 17

... V (mV) TOL FIGURE 2-61: Reference Voltage Tolerance. 2010-2011 Microchip Technology Inc. 1.8V to 5.5V GND 25° 2.74 k (MCP65R46 only) and C Pull- 5.5V V REF 1.21V 40% Avg. -0.22% 850 units 30% 20% 10% 0% -1.2% -2.0% 2.0% FIGURE 2-62: Tolerance. MCP65R41/6 ...

Page 18

... MCP65R41/6 NOTES: DS22269B-page 18 2010-2011 Microchip Technology Inc. ...

Page 19

... CMOS/TTL com- patible pin while the open-drain output is designed for level shifting and wired-OR interfaces. 3.3 Analog Outputs The V Output pin outputs a reference voltage of REF 1.21V or 2.4V. 2010-2011 Microchip Technology Inc. 3-1. Digital Output Ground SS Non-inverting Input Inverting Input ...

Page 20

... MCP65R41/6 NOTES: DS22269B-page 20 2010-2011 Microchip Technology Inc. ...

Page 21

... Time (100 ms/div) FIGURE 4-1: The MCP65R41/6 Comparators Internal Hysteresis Eliminates Output Chatter Caused by Input Noise Voltage. 2010-2011 Microchip Technology Inc. 4.1.2 INPUT VOLTAGE AND CURRENT LIMITS The ESD protection on the inputs can be depicted as shown in Figure tect the input transistors, and to minimize the input bias current (I ) ...

Page 22

... (minimum expected V SS  Pull-up resistor required for the MCP65R46 only. FIGURE 4-3: Protecting the Analog Inputs also possible to connect the diodes to the left of the resistors R and this case, the currents through 1 2 the diodes D ...

Page 23

... Figure 4-6 shows an inverting circuit for single-supply using three resistors. The resulting hysteresis diagram Figure 4-5. is shown in Figure OUT Pull-up resistor required for the MCP65R46 only. FIGURE 4-6: Hysteresis. V OUT Low-to-High FIGURE 4-7: Inverting Circuit ...

Page 24

...  ------------------- - V 23 REF Pull-up resistor required for the MCP65R46 only. FIGURE 4-8: Thevenin Equivalent Circuit. By using this simplified circuit, the trip voltage can be calculated using the following equation: EQUATION 4-1: R 23  ---------------------- - V 23 ...

Page 25

... MCP6041 a 600 nA low power and 14 kHz bandwidth op amp) to gain-up the input signal before it reaches the comparator. an example of this approach, which also level shifts to V using the Open-Drain option, the MCP65R46 REF V SS ...

Page 26

... V REF V REF REF Thermistor Pull-up resistor required for the MCP65R46 only. FIGURE 4-12: Over-Temperature Alert Circuit. DS22269B-page OUT 2010-2011 Microchip Technology Inc. ...

Page 27

... In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. 2010-2011 Microchip Technology Inc. Part Number Code MCP65R41T-1202E/CHY HVNN MCP65R41T-2402E/CHY HWNN MCP65R46T-1202E/CHY HXNN MCP65R46T-2402E/CHY HYNN MCP65R41/6 Example HV25 ) e 3 DS22269B-page 27 ...

Page 28

... Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. DS22269B-page 28 Units MILLIMETERS Dimension Limits MIN NOM 0.95 BSC e1 1.90 BSC A 0.90 A2 0.89 A1 0.00 E 2.20 E1 1.30 D 2.70 L 0.10 L1 0.35 0° 0.08 b 0.20 Microchip Technology Drawing C04-028B 2010-2011 Microchip Technology Inc. φ MAX 1.45 1.30 0.15 3.20 1.80 3.10 0.60 0.80 30° 0.26 0.51 ...

Page 29

... Plastic Small Outline Transistor (CHY) [SOT-23] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2010-2011 Microchip Technology Inc. MCP65R41/6 DS22269B-page 29 ...

Page 30

... MCP65R41/6 NOTES: DS22269B-page 30 2010-2011 Microchip Technology Inc. ...

Page 31

... APPENDIX A: REVISION HISTORY Revision B (September 2011) The following modification was made to this document: Updated the DC Characteristics table. Revision A (December 2010) Original Release of this Document. 2010-2011 Microchip Technology Inc. MCP65R41/6 DS22269B-page 31 ...

Page 32

... MCP65R41/6 NOTES: DS22269B-page 32 2010-2011 Microchip Technology Inc. ...

Page 33

... Microchip Technology Inc. Examples: X /XX a) MCP65R41T-1202E/CHY: Push-Pull Output, Temperature Package Range b) MCP65R41T-2402E/CHY: Push-Pull Output, c) MCP65R46T-1202E/CHY: Open-Drain Output, d) MCP65R46T-2402E/CHY: Open-Drain Output, MCP65R41/6 . 1.2VREF, Tape and Reel, 6LD SOT-23 Pkg. 2.4VREF, Tape and Reel, 6LD SOT-23 Pkg. 1.2VREF, Tape and Reel, 6LD SOT-23 Pkg ...

Page 34

... MCP65R41/6 NOTES: DS22269B-page 34 2010-2011 Microchip Technology Inc. ...

Page 35

... Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2010-2011, Microchip Technology Incorporated, Printed in the U ...

Page 36

... Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-5778-366 Fax: 886-3-5770-955 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-330-9305 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 2010-2011 Microchip Technology Inc. 08/02/11 ...

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