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CAT34TS00 Datasheet

1.8V Digital Temperature Sensor

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CAT34TS00 pdf
CAT34TS00
1.8 V Digital Temperature
Sensor
Description
CAT34TS00 is a low-voltage digital temperature sensor, which
implements the JEDEC JC42.4 specification. CAT34TS00 measures
temperature every 100 ms over a range of −20°C to +125°C, with a
resolution of 12 bits.
The host communicates with the device via the serial I2C / SMBus
Interface, at either 100 kHz or 400 kHz. Temperature readings can be
retrieved via serial interface. Internally, they are compared to high,
low and critical trigger limits stored in device registers. Over or under
limit conditions can be signaled on the open−drain EVENT pin. These
limits, as well as other settings, can be configured via serial interface.
Features
JEDEC JC42.4 Compliant Temperature Sensor
Supply Range: 1.7 V to 1.9 V
Temperature Range: −20°C to +125°C
I2C / SMBus Interface
Temperature Sampling Rate: 100 ms max
Temperature Reading Accuracy:
±0.5°C typ for Active Range (+75°C to +95°C)
Schmitt Triggers and Noise Suppression Filters on SCL and SDA
Inputs
2 x 3 x 0.75 mm TDFN Package
These Devices are Pb−Free and are RoHS Compliant
Typical Applications
Solid State Drives
Graphics Cards
Portable Devices
Process Control Equipment
VCC
SCL
A2, A1, A0
SDA
CAT34TS00
EVENT
VSS
Figure 1. Functional Symbol
http://onsemi.com
TDFN−8
VP2 SUFFIX
CASE 511AK
PIN CONFIGURATION
A0 1
A1
(Top View)
A2
VSS
VCC
EVENT
SCL
SDA
TDFN (VP2)
For the location of Pin 1, please consult the
corresponding package drawing.
MARKING DIAGRAM
TDFN−8
OTA
ALL
YM
G
OTA = Specific Device Code
A = Assembly Location Code
LL = Assembly Lot Number (Last Two Digits)
Y = Production Year (Last Digit)
M = Production Month (1 − 9, O, N, D)
G = Pb−Free Package
= Pin 1 Indicator
PIN FUNCTIONS
Pin Name
Function
A0, A1, A2
VSS
SDA
SCL
Device Address Inputs
Ground
Serial Data Input / Output
Serial Clock Input
EVENT
Open−drain Event Output
VCC
DAP
Ground
Backside Exposed DAP at VSS
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
July, 2014 − Rev. 0
1
Publication Order Number:
CAT34TS00/D


  ON Semiconductor Electronic Components Datasheet  

CAT34TS00 Datasheet

1.8V Digital Temperature Sensor

No Preview Available !

CAT34TS00 pdf
CAT34TS00
Table 1. ABSOLUTE MAXIMUM RATINGS (Notes 1 and 2)
Parameter
Rating
Unit
Voltage on any pin (except A0) with respect to Ground (Note 3)
Voltage on pin A0 with respect to Ground
Operating Temperature
−0.5 to +6.5
−0.5 to +10.5
−45 to +130
V
V
°C
Storage Temperature Range
−65 to +150
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Refer to ELECTRICAL CHARACTERISTICS, RECOMMENDED OPERATING RANGES and/or APPLICATION INFORMATION for Safe
Operating parameters.
2. For information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
3. The DC input voltage on any pin should not be lower than −0.5 V or higher than VCC + 0.5 V. SCL and SDA inputs can be raised to the
maximum limit, irrespective of VCC. During transitions, the voltage on any pin may undershoot to no less than −1.5 V or overshoot to no more
than VCC + 1.5 V, for periods of less than 20 ns.
Table 2. TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Max Unit
Temperature Reading Error
ADC Resolution
+75°C TA +95°C, active range
+40°C TA +125°C, monitor range
−20°C TA +125°C, sensing range
±1.0 °C
±2.0 °C
±3.0 °C
12 Bits
Temperature Resolution
0.0625
°C
Conversion Time
100 ms
Thermal Resistance (Note 4) qJA
Junction−to−Ambient (Still Air)
92 °C/W
4. Power Dissipation is defined as PJ = (TJ − TA)/qJA, where TJ is the junction temperature and TA is the ambient temperature. The thermal
resistance value refers to the case of a package being used on a standard 2−layer PCB.
Table 3. D.C. OPERATING CHARACTERISTICS (VCC = 1.7 V to 1.9 V, TA = −20°C to +125°C, unless otherwise specified)
Symbol
Parameter
Test Conditions/Comments Min Max Unit
ICC Supply Current
TS active, Bus idle
500 mA
ISHDN
Standby Current
TS shut−down; Bus idle
5 mA
ILKG I/O Pin Leakage Current
Pin at GND or VCC
2 mA
VIL Input Low Voltage
−0.5
0.3 x VCC
V
VIH Input High Voltage
0.7 x VCC
VCC + 0.5
V
VOL Output Low Voltage
IOL = 1 mA
0.2 V
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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2


Part Number CAT34TS00
Description 1.8V Digital Temperature Sensor
Maker ON Semiconductor
Total Page 14 Pages
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