TCN75-5.0MOA Microchip Technology, TCN75-5.0MOA Datasheet

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TCN75-5.0MOA

Manufacturer Part Number
TCN75-5.0MOA
Description
IC TEMP SENSOR SRL 5.0V 8SOIC
Manufacturer
Microchip Technology
Datasheets

Specifications of TCN75-5.0MOA

Package / Case
8-SOIC (3.9mm Width)
Output Type
2-Wire Serial
Function
Temp Monitoring System (Sensor)
Topology
ADC (Sigma Delta), Register Bank
Sensor Type
Internal
Sensing Temperature
-55°C ~ 125°C
Output Alarm
Yes
Output Fan
No
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Temperature Threshold
Programmable
Full Temp Accuracy
3 C
Digital Output - Bus Interface
2-Wire
Digital Output - Number Of Bits
9 bit
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Description/function
2-Wire Serial Input/Output - Thermal Monitors
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Supply Current
1 mA
Ic Output Type
Logic
Sensing Accuracy Range
± 0.5°C
Supply Voltage Range
2.7V To 5.5V
Sensor Case Style
SOIC
No. Of Pins
8
Filter Terminals
SMD
Rohs Compliant
Yes
Temperature Sensing Range
-55°C To +125°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
158-1010
158-1010

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Features:
• Solid-State Temperature Sensing:
• Operates from -55°C to +125°C
• Operating Supply Range: 2.7V to 5.5V
• Programmable Trip Point and Hysteresis with
• Standard 2-Wire Serial Interface
• Thermal Event Alarm Output Functions as
• Up to 8 TCN75s may Share the Same Bus
• Shutdown Mode for Low Standby Power
• 5V Tolerant I/O at V
• Low Power:
• 8-Pin SOIC and MSOP Packaging
Applications:
• Thermal Protection for High-Performance CPUs
• Solid-State Thermometer
• Fire/Heat Alarms
• Thermal Management in Electronic Systems:
• Copiers/Office Electronics
• Consumer Electronics
• Process Control
© 2006 Microchip Technology Inc.
0.5°C Accuracy (Typ.)
Power-up Defaults
Interrupt or Comparator/Thermostat Output
Consumption
- 250 μA (Typ.) Operating
- 1 μA (Typ.) Shutdown Mode
- Computers
- Telecom Racks
- Power Supplies/UPS/Amplifiers
2-Wire Serial Temperature Sensor and Thermal Monitor
DD
= 3V
Package Type
General Description:
The TCN75 is a serially programmable temperature
sensor that notifies the host controller when ambient
temperature exceeds a user programmed set point.
Hysteresis is also programmable. The INT/CMPTR
output is programmable as either a simple comparator
for thermostat operation or as a temperature event
interrupt.
accomplished via a two-wire bus that is compatible with
industry standard protocols. This permits reading the
current temperature, programming the set point and
hysteresis, and configuring the device.
The TCN75 powers up in Comparator mode with a
default set point of 80°C with 5°C hysteresis. Defaults
allow
thermostat. A shutdown command may be sent via the
2-wire bus to activate the low-power Standby mode.
Address selection inputs allow up to eight TCN75s to
share the same 2-wire bus for multizone monitoring.
All registers can be read by the host and the INT/
CMPTR output’s polarity is user programmable. Both
polled and interrupt driven systems are easily
accommodated. Small physical size, low installed cost,
and ease-of-use make the TCN75 an ideal choice for
implementing
schemes.
INT/CMPTR
independent operation as a
INT/CMPTR
Communication
GND
SDA
SCL
GND
SDA
SCL
sophisticated
1
2
3
4
1
2
4
3
TCN75MOA
TCN75MUA
TCN75
MSOP
SOIC
with
system
the
DS21490C-page 1
6
5
8
7
8
7
6
5
management
V
A0
A1
A2
stand-alone
TCN75
V
A0
A1
A2
DD
DD
is

Related parts for TCN75-5.0MOA

TCN75-5.0MOA Summary of contents

Page 1

... Operating Supply Range: 2.7V to 5.5V • Programmable Trip Point and Hysteresis with Power-up Defaults • Standard 2-Wire Serial Interface • Thermal Event Alarm Output Functions as Interrupt or Comparator/Thermostat Output • TCN75s may Share the Same Bus • Shutdown Mode for Low Standby Power Consumption • 5V Tolerant I • ...

Page 2

... TCN75 Device Selection Table Part Number Supply Voltage TCN75-3.3MOA TCN75-5.0MOA TCN75-3.3MUA TCN75-5.0MUA Functional Block Diagram TCN75 Temp Sensor V DD SDA SCL DS21490C-page 2 Package 3.3 8-Pin SOIC 5.0 8-Pin SOIC 3.3 8-Pin MSOP 5.0 8-PIn MSOP 9-Bit Control DS Logic A/D Converter Register Set ...

Page 3

... Serial Port Inactive ( 25° Serial Port Active Shutdown Mode, Serial Port Inactive ( 25° Note 1 User Programmable -55°C ≤ T ≤ +125° 3.3V: TCN75-3.3 MOA, DD TCN75-3.3 MUA V = 5.0V: TCN75-5.0 MOA, DD TCN75-5.0 MUA 25°C ≤ T ≤ 100°C A Power-up Power- 25° DS21490C-page 3 ...

Page 4

... At maximum rated output current and saturation voltage and 0.8V, respectively, the error amounts to 0.544°C for the SOIC. 2: All part types of the TCN75 will operate properly over the wider power supply range of 2.7V to 5.5V. Each part type is tested and specified for rated accuracy at its nominal supply voltage Human body model, 100 pF discharged through a 1 ...

Page 5

... Symbol 8-Pin MSOP) 1 SDA 2 SCL 3 INT/CMPTR 4 GND © 2006 Microchip Technology Inc. Description Bidirectional Serial Data. Serial Data Clock Input. Interrupt or Comparator Output. System Ground. Address Select Pin (MSB). Address Select Pin. Address Select Pin (LSB). Power Supply Input. TCN75 DS21490C-page 5 ...

Page 6

... A5, A4, A3) are fixed to 1001[B]. The states of A2, A1 and A0 in the serial bit stream must match the states of the A2, A1 and A0 address inputs for the TCN75 to set- respond with an Acknowledge (indicating the TCN75 is HYST on the bus and ready to accept data). The Slave Address is represented in Table 3-1 ...

Page 7

... Comparator/Interrupt Modes INT/CMPTR behaves differently depending on whether the TCN75 is in Comparator mode or Interrupt mode. Comparator mode is designed for simple thermostatic operation. INT/CMPTR will go active anytime TEMP exceeds T . When in Comparator mode, INT/ SET CMPTR will remain active until TEMP falls below T , whereupon it will reset to its inactive state ...

Page 8

... Serial Port Operation The Serial Clock input (SCL) and bidirectional data port (SDA) form a 2-wire bidirectional serial port for pro- gramming and interrogating the TCN75. The following table indicates TCN75 conventions that are used in this bus scheme. DS21490C-page 8 TABLE 4-1: Term Transmitter The device sending data to the bus ...

Page 9

... Acknowledge (ACK) provides a positive handshake between the host and the TCN75. The host releases SDA after transmitting eight bits then generates a ninth clock cycle to allow the TCN75 to pull the SDA line LOW to acknowledge that it successfully received the previous eight bits of data or address. ...

Page 10

... TCN75 5.0 REGISTER SET AND PROGRAMMER’S MODEL TABLE 5-1: REGISTER (POINT), 8 BITS, WRITE ONLY D[7] D[6] D[5] D[4] D[3] D[2] D[1] Must Be Set To Zero Register Selection Via the Pointer Register D1 D0 Register Selection TEMP 0 0 CONFIG HYST SET TABLE 5-2: ...

Page 11

... TABLE 5-7: TCN75’S REGISTER SET SUMMARY Name Description TEMP Ambient Temperature TSET Temperature Setpoint T Temperature Hysteresis HYST POINT Register Pointer CONFIG Configuration Register © 2006 Microchip Technology Inc. ...

Page 12

... Typical 1-Byte Read From Configuration Register with Preset Pointer FIGURE 5-1: Timing Diagrams DS21490C-page Ack Most Significant Data Byte by Least Significant Data Byte Master Ack Pointer Byte by TCN75 Ack Ack by Most Significant Data Byte by TCN75 Master 1 9 Stop No Ack Cond Data Byte by by Master Master 9 Stop No Ack Cond by by ...

Page 13

... Timing Diagrams (Continued) © 2006 Microchip Technology Inc. TCN75 DS21490C-page 13 ...

Page 14

... TCN75 6.0 PACKAGING INFORMATION 6.1 Package Marking Information Package marking data not available at this time. 6.2 Taping Form Component Taping Orientation for 8-Pin MSOP Devices Pin 1 Carrier Tape, Number of Components Per Reel and Reel Size Package 8-Pin MSOP Component Taping Orientation for 8-Pin SOIC (Narrow) Devices ...

Page 15

... Max. Max. .006 (0.15) .028 (0.70) .016 (0.40) Dimensions: inches (mm) Pin 1 .157 (3.99) .244 (6.20) .150 (3.81) .228 (5.79) .069 (1.75) .053 (1.35) ° 8 Max. .050 (1.27) .016 (0.40) TCN75 .008 (0.20) .005 (0.13) .010 (0.25) .007 (0.18) Dimensions: inches (mm) DS21490C-page 15 ...

Page 16

... TCN75 NOTES: DS21490C-page 16 © 2006 Microchip Technology Inc. ...

Page 17

... Customers representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document. Technical support is available through the web site at: http://support.microchip.com TCN75 should contact their distributor, DS21490C-page 17 ...

Page 18

... Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Y Device: TCN75 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

... PowerMate, PowerTool, REAL ICE, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, 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. ...

Page 20

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2006 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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