LMT85_17 Datasheet, PDF (1/30 Pages) Texas Instruments – SC70/TO-92, Analog Temperature Sensors with Class-AB Output

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LMT85, LMT85-Q1
SNIS168C – MARCH 2013 – REVISED OCTOBER 2015
LMT85/LMT85-Q1 SC70/TO-92, Analog Temperature Sensors with Class-AB Output
1 Features
•1 LMT85-Q1 is AEC-Q100 Grade 0 qualified and is
manufactured on an automotive grade flow
• Very accurate: ±0.4°C typical
• Wide temperature range of -50°C to 150°C
• Low 5.4µA quiescent current
• Sensor gain of -8.2 mV/°C
• Packages:
– Small SC70 (SOT 5-lead) surface mount
– Leaded TO-92
• Output is short-circuit protected
• Push-pull output with 50 µA source current
capability
• Footprint compatible with the industry-standard
LM20/19 and LM35 temperature sensor
• Cost-effective alternative to thermistors
2 Applications
• Automotive
• Industrial
• White Goods – Appliances
• Battery Management
• Disk Drives
• Games
• Wireless Transceivers
• Cell phones
3 Description
The LMT85/LMT85-Q1 are precision CMOS
integrated-circuit temperature sensors with an analog
output voltage that is linearly and inversely
proportional to temperature. Its features make it
suitable for many general temperature sensing
applications. It can operate down to 1.8V supply with
5.4 µA power consumption making it ideal for battery
powered devices. Package options including through-
hole TO-92 package allows the LMT85 to be
mounted on-board, off-board, to a heat sink, or on
multiple unique locations in the same application. A
class-AB output structure gives the LMT85/LMT85-
Q1 strong output source and sink current capability
that can directly drive up to 1.1 nF capacitive loads.
This means it is well suited to drive an analog-to-
digital converter sample-and-hold input with its
transient load requirements. It has accuracy specified
in the operating range of −50°C to 150°C. The
accuracy, 3-lead package options, and other features
also make the LMT85/LMT85-Q1 an alternative to
thermistors.
For devices with different average sensor gains and
comparable accuracy the LMT84/LM84-Q1,
LMT86/LMT86-Q1 and LMT87/LMT87-Q1 (For more
details see Comparable Alternative Devices.)
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMT85
SOT (5)
TO-92 (3)
2.00 mm x 1.25 mm
4.3 mm x 3.5 mm
LMT85-Q1
SOT (5)
2.00 mm x 1.25 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
4 Full-Range Celsius Temperature Sensor (−50°C to 150°C)
VDD (+1.8V to +5.5V)
VDD
Output Voltage vs Temperature
LMT85
CBP
OUT
GND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.