SLLS648D – FEBRUARY 2005 – REVISED SEPTEMBER 2011
Digital Temperature Sensor
with Two-Wire Interface
Check for Samples: TMP105
•23 SUPPORTS 1.8V I2C™ BUS
• TWO ADDRESSES
• DIGITAL OUTPUT: Two-Wire Serial Interface
• RESOLUTION: 9- to 12-Bits, User-Selectable
– ±2.0°C (max) from –25°C to +85°C
– ±3.0°C (max) from –40°C to +125°C
• LOW QUIESCENT CURRENT:
50μA, 1.5μA Standby
• NO POWER-UP SEQUENCE REQUIRED, I2C
PULLUPS CAN BE ENABLED PRIOR TO V+
• CELL PHONES
• COMPUTER PERIPHERAL THERMAL
• NOTEBOOK COMPUTERS
• BATTERY MANAGEMENT
• THERMOSTAT CONTROLS
• ENVIRONMENTAL MONITORING AND HVAC
The TMP105 is a two-wire, serial output temperature
sensor available in a WCSP package. Requiring no
external components, the TMP105 is capable of
reading temperatures with a resolution of 0.0625°C.
The TMP105 features a Two-Wire interface that is
SMBus-compatible, with the TMP105 allowing up to
two devices on one bus. The TMP105 features an
SMBus Alert function.
The TMP105 is ideal for extended temperature
measurement in a variety of communication,
computer, consumer, environmental, industrial, and
The TMP105 is specified for operation over a
temperature range of –40°C to +125°C.
YZC LEAD- FREE
2 X 3 ARRAY
1,50 mm SCL
A1 A2 GND
B1 B2 ALERT
C1 C2 A0
(Bump Side Down)
Note: Pin A1 is marked with a 0 for Pb-free (YZC)
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
I2C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2011, Texas Instruments Incorporated