MCP9502 MICROCHIP [Microchip Technology], MCP9502 Datasheet

MCP9502

Manufacturer Part Number

MCP9502

Description

Temperature Switch with Selectable Hysteresis

Manufacturer

MICROCHIP [Microchip Technology]

Datasheet

1.MCP9502.pdf (20 pages)

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Features

• Factory Set Temperature Switch

• Available Temperature Switch Thresholds:

• Wide Operating Voltage Range: 2.7V to 5.5V

• Low Supply Current: 25 µA (typical)

• Temperature Switch Accuracy:

• Switch Threshold Options (Hot/Cold):

• Output Configuration Options:

• 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

- T

- ±1°C (typical)

- ±4°C (maximum) -15°C to +75°C

- ±6°C (maximum) -40°C to +125°C

- Rising Temp.: MCP9501/2 (Hot Option)

- Falling Temp.: MCP9503/4 (Cold Option)

- Active Low, Open-Drain Output: MCP9501/3

- Active-High, Push-Pull Output: MCP9502/4

25°C, 35°C, 45°C, 55°C, 65°C, 75°C, 85°C,

95°C, 105°C, 115°C, 125°C

– Uses External Pull-up Resistor

50%

40%

30%

20%

10%

SET

= -35°C,-25°C, -15°C, -5°C, 5°C, 15°C,

Temperature Switch with Selectable Hysteresis

32 Units

= -35°C to 125°C

= 4.1V

Temperature Accuracy (°C)

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

GND

Hyst

MCP9501/2/3/4

SOT-23-5

Output

DS22268A-page 1

Related parts for MCP9502

MCP9502 Summary of contents

Page 1

... 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 heater on/off switch ...

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 T T HOT HYST SET Hysteresis Note: Temperature T T HOT ...

Page 3

... V µA °C 2.7V to 5.5V DD °C HYST = GND °C HYST = µA µA MCP9501 (MCP9502/4) OUT OUT ms s Time to 63% (89°C). +25°C (Air) to +125°C (oil bath) = -40°C to +125°C, and Units Conditions °C (Note 1) °C °C ° ...

Page 4

MCP9501/2/3/4 2.0 TYPICAL PERFORMANCE CURVES Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested ...

Page 5

Note: Unless otherwise indicated (MCP9501 only) and 0.1 µF bypass capacitor. 60% ° -15 4.1V DD 50% 492 Units 20% ...

Page 6

... HYST = GND → Hysteresis is 2°C (typical) → 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

Page 8

MCP9501/2/3/4 4.0 FUNCTIONAL DESCRIPTION The MCP9501/2/3/4 temperature integrates a thermal diode, a comparator, and a factory selectable resistive network used temperature thresholds. The available thresholds range from -35°C to 125°C at 10°C increments. There is no additional configuration required to ...

Page 9

... Output HYST MCP9502 FIGURE 4-3: Fan Controller Using MCP9502. The MCP9501/2/3/4 provide Open-Drain output where multiple sensors from multiple PCB hot-spots can be connected to a single processor I/O input with a wired- OR configuration. The MCP9501 requires an external pull-up resistor which can be used to level-shift the alert signal ...

Page 10

MCP9501/2/3/4 4.1.2 POWER SUPPLY REJECTION The MCP9501/2/3/4 family does not require any additional components. However recommended that a decoupling capacitor of 0.1 µ µF be used between the V and GND pins. A high-frequency DD ceramic ...

Page 11

Page 12

... Hot Options WVNN MCP9502PT-005E/OT WWNN MCP9502PT-015E/OT WXNN MCP9502PT-025E/OT WYNN MCP9502PT-035E/OT WZNN MCP9502PT-045E/OT X1NN MCP9502PT-055E/OT X2NN MCP9502PT-065E/OT X3NN MCP9502PT-075E/OT X4NN MCP9502PT-085E/OT X5NN MCP9502PT-095E/OT X6NN MCP9502PT-105E/OT X7NN MCP9502PT-115E/OT X8NN MCP9502PT-125E/OT XHNN MCP9501PT-005E/OT XJNN MCP9501PT-015E/OT XKNN MCP9501PT-025E/OT Cold Options XBNN MCP9501NT-005E/OT XCNN MCP9501NT-015E/OT XDNN MCP9501NT-025E/OT ...

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

Page 16

Page 17

... Temperature Temperature Switch Threshold Range 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

Page 19

Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...

Page 20

Worldwide Sales and Service AMERICAS ASIA/PACIFIC Corporate Office Asia Pacific Office 2355 West Chandler Blvd. Suites 3707-14, 37th Floor Chandler, AZ 85224-6199 Tower 6, The Gateway Tel: 480-792-7200 Harbour City, Kowloon Fax: 480-792-7277 Hong Kong Technical Support: Tel: 852-2401-1200 http://support.microchip.com ...

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