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MCP9503 Datasheet

Download or read online Microchip Technology MCP9503 Temperature Switch With Selectable Hysteresis pdf datasheet.



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Temperature Switch with Selectable Hysteresis
Features
• Factory Set Temperature Switch
• Available Temperature Switch Thresholds:
- T
= -35° C,-25° C, -15° C, -5° C, 5° C, 15° C,
SET
25° C, 35° C, 45° C, 55° C, 65° C, 75° C, 85° C,
95° C, 105° C, 115° C, 125° C
• Wide Operating Voltage Range: 2.7V to 5.5V
• Low Supply Current: 25 µA (typical)
• Temperature Switch Accuracy:
- ±1° C (typical)
- ±4° C (maximum) -15° C to +75° C
- ±6° C (maximum) -40° C to +125° C
• Switch Threshold Options (Hot/Cold):
- Rising Temp.: MCP9501/2 (Hot Option)
- Falling Temp.: MCP9503/4 (Cold Option)
• Output Configuration Options:
- Active Low, Open-Drain Output: MCP9501/3
– Uses External Pull-up Resistor
- Active-High, Push-Pull Output: MCP9502/4
• User Selectable Hysteresis: 2° C or 10° C (typical)
• 5-lead SOT-23 package
Applications
• Power Supply Critical Temperature Shutdown
• Temperature Alarm
• Thermostat Control
• Fan Control
• Base-Stations
• Automotive
Typical Performance
50%
T
= -35° C to 125° C
A
V
= 4.1V
DD
40%
32 Units
30%
20%
10%
0%
Temperature Accuracy (°C)
© 2011 Microchip Technology Inc.
MCP9501/2/3/4
Description
Microchip Technology’s MCP9501/2/3/4 family of
devices are temperature switches with ±1° C (typical)
accurate factory set output thresholds. These devices
are ideal for high power supply systems where an
overtemperature protection circuit is needed. These
devices do not require external components, consume
25 µA (typical), and the factory set thresholds provide
simplicity.
In addition, this family of devices provide user
selectable 2° C and 10° C (typical) switch hysteresis,
and various output configurations. The MCP9501/2
outputs switch for rising temperatures while the
MCP9503/4 switch for falling temperature, with the
relative hysteresis at the set thresholds. This family of
devices is also available with Active-High Push-Pull
and Active-Low Open-Drain outputs, the MCP9502/4
and the MCP9501/3, respectively. The Push-Pull
output is ideal for a microcontroller interface while the
Open-Drain output can be used for level shifting, wired-
OR configuration, or as a heater on/off switch.
The MCP9501/2/3/4 operate from 2.7V to 5.5V supply.
This family is available with space saving 5-lead
SOT-23 package.
Package Types
MCP9501/2/3/4
SOT-23-5
GND
1
2
GND
3
Hyst
5
Output
V
4
DD
DS22268A-page 1

Summary of Contents

Page 1

... C and 10° C (typical) switch hysteresis, and various output configurations. The MCP9501/2 outputs switch for rising temperatures while the MCP9503/4 switch for falling temperature, with the relative hysteresis at the set thresholds. This family of devices is also available with Active-High Push-Pull and Active-Low Open-Drain outputs, the MCP9502/4 and the MCP9501/3, respectively ...

Page 2

... MCP9501/2/3/4 OUTPUT FUNCTIONAL DESCRIPTION MCP9501, Hot-Option (Open-Drain, Active-Low) V Output COLD MCP9502, Hot-Option (Push-Pull, Active-High) V Output COLD MCP9503, Cold-Option (Open-Drain, Active-Low) V Output COLD MCP9504, Cold-Option (Push-Pull, Active-High) V Output COLD DS22268A-page 2 Hysteresis Note: Temperature HOT T T HYST SET Hysteresis Note: Temperature T T HOT ...

Page 3

... Storage Temperature Range Thermal Package Resistances Thermal Resistance, 5L-SOT23 Note 1: Operation in this range must not cause T © 2011 Microchip Technology Inc. Junction Temperature (T ESD protection on all pins (HBM:MM) ... (4 kV/400V) Latch-Up Current at each pin (25° C) ... ±200 mA Notice: Stresses above those listed under Maximum ratings” ...

Page 4

... 85% 80 100 120 T (° vs. Temperature 105 POR Hysteresis 100 120 T (°C) A Power On Reset Threshold © 2011 Microchip Technology Inc. ...

Page 5

... O 10 (° C) Temperature Accuracy (°C) A FIGURE 2-9: Temperature Accuracy Distribution at 65° C. © 2011 Microchip Technology Inc. 2.7V to 5.5V -40° 125° C, GND Ground 60 105 4.1V DD 50% 480 Units s 40 30% ...

Page 6

... Hysteresis is 10° C (typical) HYST V DD MCP9501 Open-Drain, Active-Low Output (Hot-Option) MCP9502 Push-Pull, Active-High Output (Hot-Option) MCP9503 Open-Drain, Active-Low Output (Cold-Option) MCP9504 Push-Pull, Active-High Output (Cold-Option) 3.3 Power Pin (V The operating voltage range, as specified in the DC electrical specification table, is applied on this pin. ...

Page 7

... NOTES: © 2011 Microchip Technology Inc. MCP9501/2/3/4 DS22268A-page 7 ...

Page 8

... The open-drain option can be used with multiple sensors in a wired-OR configuration level shifter. shows a 2° C Typical Hysteresis T SET HYST Hot Temperature 10° C Typical Hysteresis 2° C Typical Hysteresis T T SET HYST Hot Temperature Output Hysteresis. © 2011 Microchip Technology Inc. ...

Page 9

... DD Figure 4- MCP9501 OUT HYST 85° MCP9503 OUT HYST 35° C FIGURE 4-4: MCP9501 Wired-OR Output Configuration with Level-shift. © 2011 Microchip Technology Inc. 4.1.1 LAYOUT CONSIDERATION AND THERMAL CONSIDERATION switch family This family of sensors measures temperature by monitoring the voltage level of a thermal diode located in the die ...

Page 10

... With some applications ° 25 C Power Supply Rejection SET ° 25 C SET T 23C ° SQR 100 1000 10000 100000 1000000 10000000 Frequency (Hz Frequency (Hz) Power Supply Rejection. © 2011 Microchip Technology Inc. ...

Page 11

... NOTES: © 2011 Microchip Technology Inc. MCP9501/2/3/4 DS22268A-page 11 ...

Page 12

... MCP9501PT-065E/OT MCP9501PT-075E/OT MCP9501PT-085E/OT MCP9501PT-095E/OT MCP9501PT-105E/OT MCP9501PT-115E/OT MCP9501PT-125E/OT MCP9503PT-005E/OT MCP9503PT-015E/OT MCP9503PT-125E/OT MCP9503NT-005E/OT MCP9503NT-015E/OT MCP9503NT-025E/OT MCP9503NT-035E/OT Note: Legend: XX...X Customer-specific information Y Year code (last digit of calendar year) YY Year code (last 2 digits of calendar year) WW Week code (week of January 1 is week 01) NNN Alphanumeric traceability code ...

Page 13

... 1RWHV © 2011 Microchip Technology Inc. MCP9501/2/3 φ DS22268A-page 13 ...

Page 14

... MCP9501/2/3/4 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22268A-page 14 © 2011 Microchip Technology Inc. ...

Page 15

... APPENDIX A: REVISION HISTORY Revision A (January 2011) Original Release of this Document. © 2011 Microchip Technology Inc. MCP9501/2/3/4 DS22268A-page 15 ...

Page 16

... MCP9501/2/3/4 NOTES: DS22268A-page 16 © 2011 Microchip Technology Inc. ...

Page 17

... Device: MCP9501P: Resistor Programmable Temperature Switch, Hot Option MCP9502P Resistor Programmable Temperature Switch, Hot Option MCP9503N: Resistor Programmable Temperature Switch, Cold Option MCP9504N Resistor Programmable Temperature Switch, Cold Option Temperature Switch 005, 015, 025, 035, 045, 055, 065, 075, 085, 095, 105, ...

Page 18

... MCP9501/2/3/4 NOTES: DS22268A-page 18 © 2011 Microchip Technology Inc. ...

Page 19

... PICtail, REAL ICE, rfLAB, 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. © 2011, Microchip Technology Incorporated, Printed in the U ...

Page 20

... Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-6578-300 Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-213-7830 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 © 2011 Microchip Technology Inc. 08/04/10 ...

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