ATS75D8 ETC2 [List of Unclassifed Manufacturers], ATS75D8 Datasheet

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ATS75D8

Manufacturer Part Number
ATS75D8
Description
LOW- OLTAGE 2-WIRE DIGITAL TEMPERATURE SENSOR With Thermal Alarm
Manufacturer
ETC2 [List of Unclassifed Manufacturers]
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATS75D8T
Manufacturer:
ANADIGICS
Quantity:
1 818
Fully Released Specification
Product Description
The aTS75 is a CMOS temperature sensor with a Delta-
Sigma temperature-to-digital converter and a SMBus
compatible serial digital interface. The aTS75 is accurate
to ±2° at 25°C and to ±3°C over the range of 0°C to 100°C.
The aTS75 provides digital temperature data with 9- to 12-
bit resolution.
applications requiring higher resolution, the user can
program the aTS75 to provide 10-, 11-, or 12-bit data.
The aTS75 features a thermal alarm function with a user-
programmable trip temperature and turn-off temperature.
This alarm can operate in two modes — interrupt mode and
comparator mode — which allows flexibility for many types
of applications.
The aTS75 is available in SOIC-8 and MSOP-8 surface
mount packages.
Features
User Configurable to 9-, 10-, 11-, or 12-bit Resolution
Calibrated to ±3°C from 0°C to 100°C
Temperature Range: -30°C to 125°C
Low Operating Current (less than 250μA)
Low Self Heating (0.2°C max in still air)
Operating Voltage Range: 2.7V to 5.5V
Applications
Battery Management
FAX Management
Printers
Portable Medical Instruments
HVAC
Power Supply Modules
Disk Drives
Computers
Automotive
Ordering Information
© Andigilog, Inc. 2005
AYWW – assembly site code, last digit of year, workweek
Part Number
aTS75M8
aTS75D8
The default resolution is 9-bits, but for
8-Lead MSOP
8-Lead SOIC
Package
L
OW
Temperature Range
-
-30°C to 125°C
-30°C to 125°C
V
www.andigilog.com
OLTAGE
- 1 -
2-W
Programmable
Address
User
SMBus
Interface
IRE
Marking
P
AYWW
AYWW
D
aTS75
GND
SDA
O.S.
TS75
SCL
RODUCT
IGITAL
Application Diagram
Pin Configuration
SDA
SCL
A0
A1
A2
SOP8 and MSOP8
1
2
3
4
T
5
7
6
1
2
EMPERATURE
2500 units Tape & Reel
2500 units Tape & Reel
aTS75
Configuration
2.7V to 5.5V
With Thermal Alarm
S
How Supplied
aTS75
8 Pin
PECIFICATION
8
April 2006 - 70A03204
8
7
6
5
aTS75
V
A0
A1
A2
3
DD
S
ENSOR
O.S.

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ATS75D8 Summary of contents

Page 1

... Battery Management FAX Management Printers Portable Medical Instruments HVAC Power Supply Modules Disk Drives Computers Automotive Ordering Information Part Number Package aTS75D8 8-Lead SOIC aTS75M8 8-Lead MSOP AYWW – assembly site code, last digit of year, workweek © Andigilog, Inc. 2005 2 ...

Page 2

Absolute Maximum Ratings Supply Voltage Output Voltage Continuous Current, any terminal Storage Temperature Range Lead Soldering Temperature ESD 3 Electrical Characteristics (- 30°C ≤ T ≤ +125° 5.0V unless otherwise noted. A Parameter Specified Temperature Range ...

Page 3

This specification only indicates how often temperature information is updated to the Temperature Register. The aTS75 can be read at any time without interrupting the temperature conversion process. 5. Accuracy (expressed in °C) = Difference between the aTS75 output ...

Page 4

Basic Operation The aTS75 temperature sensing circuitry continuously produces an analog voltage that is proportional to the device temperature. At regular intervals the aTS75 converts the analog voltage to a two’s complement digital value, which is placed into the temperature ...

Page 5

Comparator Mode In Comparator Mode, each time an temperature-to- digital(T-to-D) temperature conversion occurs, the new digital temperature is compared to the value stored in the T and T Registers fault tolerance number of OS HYST consecutive temperature measurements ...

Page 6

Registers The ATS75 contains the following five registers: 1) Command Register 2) Temperature Register 3) Configuration Register 4) Over-Limit-Signal Temperature Register (T 5) Hysteresis Temperature Register (T All of these registers can be accessed by the user via the digital ...

Page 7

Temperature Register The Temperature Register is a two-byte (16-bit) read-only register. Digital temperatures from the T-to-D converter are stored in the Temperature Register in two’s complement format, and the contents of this register are updated at regular intervals—i.e., each time ...

Page 8

Over-Limit-Signal Temperature Register (T The T Register is a two-byte (16-bit) read/write register OS that stores the user-programmable temperature for the thermal alarm in two’s-complement format. At power-up this register defaults to 80°C (i.e., 0101 0000 0000 0000. The format ...

Page 9

Serial Data Bus Operation General Operation Writing to and reading from the aTS75 registers is accomplished via the SMBus-compatible two-wire serial interface. SMBus protocol requires that one device on the bus initiates and controls all read and write operations. This ...

Page 10

Reading If the pointer is already pointing to the desired register, the master can read from that register by setting the read/write bit (following the slave address After sending an ACK, the aTS75 will begin transmitting data ...

Page 11

SCL SDA Address Byte . . . SCL SDA Repeat Start Address Byte from Figure 8. Pointer set followed by immediate read from a 2-byte ...

Page 12

SCL SDA Address Byte . . . . Most Significant Data Byte Figure 11. Pointer set followed by immediate write to a 2-byte register (T SCL ...

Page 13

D8 Package – 8-Lead SOIC Package Dimensions 0.53mm 3.81mm (min) 5.80mm (min) 3.99mm (max) 6.20mm (max) 1.52mm (min) 1.72mm (max) 0.10mm (min) 0.36mm (min) 0.25mm (max) 0.46mm (max) © Andigilog, Inc. 2005 1.27mm BSC 4.80mm (min) 4.98mm (max) 1.37mm (min) ...

Page 14

M8 Package – 8-Lead MSOP Package Dimensions 0.525mm BSC 2.90mm (min) 4.75mm (min) 3.10mm (max) 5.05mm (max) 2.85mm (min) 3.05mm (max) 1.10mm (max) 0.10m 0.25mm (min) m 0.40mm (max) 2.90mm (min) 3.10mm (max) © Andigilog, Inc. 2005 9° (min) 0.65mm ...

Page 15

... Fully released datasheets do not contain any classification in the first page header. These documents contain specification on products that are in full production. Andigilog will not change any guaranteed limits without written notice to the customers. Obsolete datasheets that were written prior to January 1, 2001 without any header classification information should be considered as obsolete and non-active specifications the best case as Preliminary Specifications. ® ...

Page 16

Notes: Andigilog, Inc. 8380 S. Kyrene Rd., Suite 101 Tempe, Arizona 85284 Tel: (480) 940-6200 Fax: (480) 940-4255 © Andigilog, Inc. 2005 - 16 - www.andigilog.com aTS75 April 2006 - 70A03204 ...

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