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TMP451JQDQFTQ1 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. TMP451JQDQFTQ1
Description  짹1째C Remote and Local Temperature Sensor With 管-Factor and Offset Correction, Series-Resistance Cancellation, and Programmable Digital Filter
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TMP451JQDQFTQ1 Datasheet(HTML) 1 Page - Texas Instruments

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DXP
DXN
SCL
SDA
THERM
GND
V+
ALERT / THERM2
Processor or
ASIC
SMBus
Controller
1
2
3
4
5
8
7
6
TMP451-Q1
1.7V to 3.6V
1.7V to 3.6V
Built-in Thermal
Transistor/Diode
Overtemperature Shutdown
Product
Folder
Order
Now
Technical
Documents
Tools &
Software
Support &
Community
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.
TMP451-Q1
SLOS877B – OCTOBER 2014 – REVISED JUNE 2019
TMP451-Q1 ±1°C Remote and Local Temperature Sensor With η-Factor and Offset
Correction, Series-Resistance Cancellation, and Programmable Digital Filter
1
1 Features
1
Qualified for automotive applications
AEC-Q100 qualified with the following results:
Device temperature grade 1: –40°C to 125°C
ambient operating temperature range
±1°C accuracy for local and remote diode sensors
0.0625°C resolution for local and remote channels
1.7-V to 3.6-V supply and logic voltage range
27-µA operating current, 3-µA shutdown current
Series resistance cancellation
η-factor and offset correction
Programmable digital filter
Diode fault detection
Two-wire and SMBus™ serial interface
8-pin WSON (WDFN) package
2 Applications
Automotive infotainment systems
ECU processor temperature monitoring
TCM processor temperature monitoring
BCM processor temperature monitoring
LED headlight thermal control
3 Description
The TMP451-Q1 device is a high-accuracy, low-
power remote temperature sensor monitor with a
built-in
local
temperature
sensor.
The
remote
temperature sensors are typically low-cost discrete
NPN
or
PNP
transistors,
or
substrate
thermal
transistors or diodes that are integral parts of
microprocessors, microcontrollers, or FPGAs. The
temperature is represented as a 12-bit digital code for
both the local and the remote sensors, giving a
resolution of 0.0625°C. The temperature accuracy is
±1°C (maximum) in the typical operating range for the
local and the remote temperature sensors. The two-
wire
serial
interface
accepts
the
SMBus
communication protocol.
Advanced
features
such
as
series
resistance
cancellation, programmable nonideality factor (η-
factor),
programmable
offset,
programmable
temperature limits, and a programmable digital filter
are combined to provide a robust thermal monitoring
solution with improved accuracy and noise immunity.
The TMP451-Q1 device is ideal for multi-location,
high-accuracy
temperature
measurements
in
a
variety of automotive sub-systems. The device is
specified for operation over a supply voltage range of
1.7 V to 3.6 V and a temperature range of –40°C to
125°C.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TMP451-Q1
WSON (8)
2.00 mm × 2.00 mm
2.50 mm × 2.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application


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