TC77-5.0MOATR Microchip Technology, TC77-5.0MOATR Datasheet

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TC77-5.0MOATR

Manufacturer Part Number
TC77-5.0MOATR
Description
IC THERMAL SENSOR SPI 5V 8-SOIC
Manufacturer
Microchip Technology
Datasheet

Specifications of TC77-5.0MOATR

Function
Temp Monitoring System (Sensor)
Topology
ADC (Sigma Delta), Register Bank
Sensor Type
Internal
Sensing Temperature
-55°C ~ 125°C
Output Type
MICROWIRE™, SPI™
Output Alarm
No
Output Fan
No
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Full Temp Accuracy
3 C
Digital Output - Bus Interface
MICROWIRE, SPI
Digital Output - Number Of Bits
12 bit
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Description/function
Outputs Temperature as a 13-Bit Digital Word
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Supply Current
400 uA
For Use With
TC77DM-PICTL - BOARD DEMO PICTAIL TC77
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
• Digital Temperature Sensing in 5-Pin SOT-23A
• Outputs Temperature as a 13-Bit Digital Word
• SPI and MICROWIRE™ Compatible Interface
• Solid State Temperature Sensing
• ±1°C (max.) accuracy from +25°C to +65°C
• ±2°C (max.) accuracy from -40°C to +85°C
• ±3°C (max.) accuracy from -55°C to +125°C
• 2.7V to 5.5V Operating Range
• Low Power
Typical Applications
• Thermal Protection for Hard Disk Drives and
• PC Card Devices for Notebook Computers
• Low Cost Thermostat Controls
• Industrial Control
• Office Equipment
• Cellular Phones
• Thermistor Replacement
Block Diagram
M
V
V
and 8-Pin SOIC Packages
- 250 µA (typ.) Continuous Conversion Mode
- 0.1 µA (typ.) Shutdown Mode
Other PC Peripherals
2002 Microchip Technology Inc.
DD
SS
A/D Converter
Temperature
Temperature
Sigma Delta
Register
Internal
Sensor
Diode
13-Bit
Thermal Sensor with SPI
Manufacturer
ID Register
Configuration
Interface
Register
Serial
Port
TC77
CS
SI/O
SCK
Description
The TC77 is a serially accessible digital temperature
sensor particularly suited for low cost and small form-
factor applications. Temperature data is converted from
the internal thermal sensing element and made avail-
able at anytime as a 13-bit two’s compliment digital
word. Communication with the TC77 is accomplished
via a SPI and MICROWIRE compatible interface. It has
a 12-bit plus sign temperature resolution of 0.0625°C
per Least Significant Bit (LSb). The TC77 offers a tem-
perature accuracy of ±1.0°C (max.) over the tempera-
ture range of +25°C to +65°C. When operating, the
TC77 consumes only 250 µA (typ.). The TC77’s Con-
figuration register can be used to activate the low
power Shutdown mode, which has a current consump-
tion of only 0.1 µA (typ.). Small size, low cost and ease
of use make the TC77 an ideal choice for implementing
thermal management in a variety of systems.
Package Types
Typical Application
SCK
V
CS
SS
SOT-23-5
1
TC77
TC77
V
V
DD
SS
Interfa
SCK
SI/O
V
CS
DD
V
SI/O
0.1µF
DD
ce
SCK
SI/O
V
NC
SS
TC77
PICmicro
1
AN0
SCK
SDI
SOIC
TC77
DS20092A-page 1
MCU
®
V
CS
NC
NC
DD

Related parts for TC77-5.0MOATR

TC77-5.0MOATR Summary of contents

Page 1

... Shutdown mode, which has a current consump- tion of only 0.1 µA (typ.). Small size, low cost and ease of use make the TC77 an ideal choice for implementing thermal management in a variety of systems. Package Types SOT-23-5 ...

Page 2

... Temperature Conversion Time Temperature Accuracy T (Note 1) Note 1: The TC77-3.3MXX and TC77-5.0MXX will operate from a supply voltage of 2.7V to 5.5V. However, the tem- perature accuracy of the TC77-3.3MXX and TC77-5.0MXX is specified at the nominal operating voltages of 3.3V and 5.0V, respectively degraded (Refer to Figures 2-6 and 2-7). ...

Page 3

... Thermal Package Resistance Thermal Resistance, SOT23-5 Thermal Resistance, 8L-SOIC Note 1: The TC77-3.3MXX and TC77-5.0MXX will operate from a supply voltage of 2.7V to 5.5V. However, the tem- perature accuracy of the TC77-3.3MXX and TC77-5.0MXX is specified at the nominal operating voltages of 3.3V and 5.0V, respectively degraded (Refer to Figures 2-6 and 2-7). ...

Page 4

... TC77 CS t CS-SCK SCK t CS-SI/O HI-Z SI/O MSb SI/O Data Input Set-up and Hold Timing (Data is clocked on the rising edge of SCK) CS SCK SI/O FIGURE 1-1: Timing Diagrams. DS20092A-page 4 Data Output Timing 1/f CLK SCK t HD HI-Z SI/O t DIS HI-Z LSb t SU HI-Z 2002 Microchip Technology Inc ...

Page 5

... Note: Unless otherwise indicated, all parameters apply at V 5.0MXX, and T = -55°C to +125°C. The TC77-3.3MXX and TC77-5.0MXX will operate from a supply voltage of 2. 5.5V. However, the temperature accuracy of the TC77-3.3MXX and TC77-5.0MXX is specified at the nominal oper- ating voltages of 3.3V and 5.0V, respectively. 3.5 3 Upper Specification Limit 2 ...

Page 6

... Temperature Error (°C) FIGURE 2-9: Histogram of Temperature Accuracy at -40 Degrees C (TC77-XXMXX). DS20092A-page 6 50 Sample Size = 108 FIGURE 2-10: Accuracy at +25 Degrees C (TC77-XXMXX). 50 Sample Size = 108 1 FIGURE 2-11: Accuracy at +65 Degrees C (TC77-XXMXX). 90 Sample Size = 108 +85°C A ...

Page 7

... Sample Size = 108 T = +125° -2.5 -2 -1.5 -1 -0.5 0 0.5 1 Temperature Error (°C) FIGURE 2-13: Histogram of Temperature Accuracy at +125 Degrees C (TC77-XXMXX). 2002 Microchip Technology Inc. 1.5 2 2.5 3 TC77 DS20092A-page 7 ...

Page 8

... SPI and MICROWIRE specifica- tions and, therefore, allows simple communications with common microcontrollers and processors. The Shutdown mode can be used to reduce supply current for power sensitive applications. A Manufacturer’s ID register identifies the TC77 as a Microchip Technology product. Temp 0+0000 0000 0000 -55°C FIGURE 3-1: Temperature To Digital Transfer Function (Non-linear Scale) ...

Page 9

... Figure 3-2 provides a timing diagram of a read opera- tion of the Temperature register. Communication with the TC77 is initiated when the CS goes to a logic ‘0’. The Serial I/O signal (SI/O) then transmits the first bit of data. The microcontroller serial I/O bus master clocks the data in on the rising edge of SCK ...

Page 10

... It is recommended that the user write all ‘0’s or all ‘1’s to the Configuration register. While the following codes can be transmitted to the TC77, any other code may put the TC77 into a test mode reserved by Microchip for calibration and production verification tests. • 00 hex • ...

Page 11

... C15:C0 = XXXX/XXXX 0000/0000 (Continuous Conversion mode) • The TC77 is in Shutdown mode when bits are all equal to ‘1’s. The TC77 will be in the Continuous Conversion mode if a ‘0’ in any bit location from written to the Configura- tion register. The TC77 is in the Continuous Conversion mode at power-up recommended that the user write all ‘ ...

Page 12

... IC die. A low-imped- ance thermal path between the die and the printed cir- cuit board (PCB) is provided by the IC pins of the TC77. Therefore, the TC77 effectively monitors the tempera- ture of the PCB board. The thermal path between the ambient air is not as efficient because the plastic IC housing package functions as a thermal insulator ...

Page 13

... Standard marking consists of Microchip part number, year code, week code, and traceability code. Please check with your Microchip Sales Office. 2002 Microchip Technology Inc. Example: TC77-3.3MCTTR = CN CP57 TC77-5.0MCTTR = CP Example: TC77-33 I/SN0222 057 ...

Page 14

... TC77 5-Lead Plastic Small Outline Transistor (OT) (SOT23 Dimension Limits Number of Pins Pitch Outside lead pitch (basic) Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top ...

Page 15

... L .019 .025 .030 .008 .009 .010 B .013 .017 .020 TC77 A2 MILLIMETERS MIN NOM MAX 8 1.27 1.35 1.55 1.75 1.32 1.42 1.55 0.10 0.18 0.25 5.79 6.02 6.20 3.71 3.91 3.99 4.80 4.90 5.00 0.25 0.38 ...

Page 16

... TC77 NOTES: DS20092A-page 16 2002 Microchip Technology Inc. ...

Page 17

... Microchip's development systems software products. Plus, this line provides information on how customers ® ® can receive the most current upgrade kits.The Hot Line or Microsoft Numbers are: 1-800-755-2345 for U.S. and most of Canada, and 1-480-792-7302 for the rest of the world. TC77 092002 DS20092A-page 17 ...

Page 18

... Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Y Device: TC77 Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs you find the organization of this document easy to follow? If not, why? 4 ...

Page 19

... TC77-5.0MOA: 5.0V Thermal Sensor in SOIC package. c) TC77-3.3MOATR: 3.3V Thermal Sensor in SOIC package, Tape and Reel. d) TC77-5.0MOATR: 5.0V Thermal Sensor in SOIC package, Tape and Reel. e) TC77-3.3MCTTR: 3.3V Thermal Sensor in SOT-23 package, Tape and Reel. f) TC77-5.0MCTTR: 5.0V Thermal Sensor in SOT-23 package, Tape and Reel. ...

Page 20

... TC77 NOTES: DS20092A-page 20 2002 Microchip Technology Inc. ...

Page 21

... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...

Page 22

... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology (Barbados) Inc., Taiwan Branch 11F-3, No ...

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