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TMP468AIYFFR Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce TMP468AIYFFR
Description  9-Channel (8-Remote and 1-Local), High-Accuracy Temperature Sensor
Download  43 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TMP468AIYFFR Fiches technique(HTML) 1 Page - Texas Instruments

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D3+
D4+
SCL
SDA
THERM
ADD
V+
THERM2
D3
C1
D1
D4
C4
B4
TMP468
C3
B3
D5+
D6+
A2
B2
D1+
D2+
D-
D7+
A1
B1
C2
A3
GND
A4
D8+
D2
CDIFF
RS1
RS2
CDIFF
RS1
RS2
CDIFF
RS1
RS2
CDIFF
RS1
RS2
CDIFF
RS1
RS2
CDIFF
RS1
RS2
CDIFF
RS1 RS2
CDIFF
RS1
RS2
1.7V to 3.6V
CBYPASS
RSCL RSDA
RT
RT2
2-Wire Interface
SMBus/I2C
Compatible
Cotnroller
Over-
Temperature
Shutdown
Local
Zone 9
Remote
Zone 1
Remote
Zone 2
Remote
Zone 3
Remote
Zone 4
Remote
Zone 8
Remote
Zone 7
Remote
Zone 6
Remote
Zone 5
Product
Folder
Sample &
Buy
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.
TMP468
SBOS762 – NOVEMBER 2016
TMP468 9-Channel (8-Remote and 1-Local), High-Accuracy Temperature Sensor
1
1 Features
1
8-Channel Remote Diode Temperature Sensor
Accuracy: ±0.75°C
Local Temperature Sensor Accuracy: ±0.35°C
Temperature Resolution: 0.0625°C
Supply and Logic Voltage Range: 1.7 V to 3.6 V
67-µA Operating Current (1 SPS, All Channels
Active)
0.3-µA Shutdown Current
Remote Diode: Series Resistance Cancellation,
η-Factor Correction, Offset Correction, and Diode
Fault Detection
Register Lock Function Secures Key Registers
I2C- or SMBus™-Compatible Two-Wire Interface
With Pin-Programmable Address
16-Bump DSBGA Package
2 Applications
MCU, GPU, ASIC, FPGA, DSP, and CPU
Temperature Monitoring
Telecommunication Equipment
Servers and Personal Computers
Cloud Ethernet Switches
Secure Data Centers
Highly Integrated Medical Systems
Precision Instruments and Test Equipment
LED Lighting Thermal Control
3 Description
The TMP468 device is a multi-zone, high-accuracy,
low-power
temperature
sensor
using
a
2-wire,
SMBus- or I2C-compatible interface. Up to eight
remote diode-connected temperature zones can be
monitored simultaneously in addition to the local
temperature.
Aggregating
the
temperature
measurements across a system allow improved
performance through tighter guard bands and can
also reduce board complexity. A typical use case is
for
monitoring
the
temperature
across
different
processors, such as MCUs, GPUs, and FPGAs in
complex
systems
such
as
servers
and
telecommunications equipment.
Advanced
features
such
as
series
resistance
cancellation,
programmable
non-ideality
factor,
programmable offset, and programmable temperature
limits are included to provide a robust thermal
monitoring solution with improved accuracy and noise
immunity.
Each of the 8 remote channels (and the local
channel) can be programmed independently with two
thresholds which trigger when the corresponding
temperature is exceeded at the measured location. In
addition, there is a programmable hysteresis setting
to avoid constant toggling of the threshold.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TMP468
DSBGA (16)
1.60 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
Note: See section Design Requirements for remote diode recommendations (most common discrete transistor
recommendation is MMBT3904). Place remote diode differential filter capacitors close to TMP468 pins. Unused diode
channels must be tied to D–. Remote diode filter capacitor and the sum of the series resistance (RS1 + RS2) values
must be less than 1 nF and 1 kΩ, respectively.


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