TMP144
SBOS891B – OCTOBER 2018 – REVISED ATPMRILP2104241
www.ti.com
SBOS891B – OCTOBER 2018 – REVISED APRIL 2021
TMP144 Low-Power, Digital Temperature Sensor With SMAART Wire™ / UART
Interface
1 Features
3 Description
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Multiple Device Access (MDA):
– Global read/write operations
SMAART Wire™ / UART interface
Resolution: 12-bit or 0.0625 °C
±1 °C maximum (–10 °C to +100 °C)
±2 °C maximum (–40 °C to +125 °C)
Low quiescent current:
– 3-μA active IQ at 0.25 Hz
– 0.6-μA shutdown
Supply range: 1.4 V to 3.6 V
Push-pull digital output
The TMP144 digital output temperature sensor can
read temperatures to a resolution of 0.0625 °C.
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The device has
a
SMAART Wire™
/
UART
interface that supports daisy-chain configurations. The
interface also supports Multiple Device Access (MDA)
commands that let the host communicate with multiple
devices on the bus simultaneously. MDA commands
are used as an alternative to sending individual
commands to each device on the bus. Up to 16
TMP144 devices can be attached together serially
and can be read by the host computer.
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Package:
The TMP144 device is designed for space-
constrained, power-sensitive applications with multiple
temperature measurement zones that must be
monitored. The device is specified for operation
over a temperature range of –40 °C to 125 °C
and is available in two different 4-ball, low-height
wafer chip-scale package (DSBGA) options. The YMT
package of the device has a height of 150 µm, which
is 40% thinner than a 0201 resistor. The thinner
YMT package can be placed under heat-dissipating
components on the system for better accuracy and
faster thermal response times.
– 0.76 mm × 0.96 mm, 150-µm maximum height,
4-ball YMT (DSBGA)
– 0.76 mm × 0.96 mm, 625-µm maximum height,
4-ball YFF (DSBGA)
2 Applications
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Handsets
Smartphones
Tablets
LED Backlighting
HDTVs
Enterprise Servers
Notebooks
Medical
Device Information(1)
PART NUMBER
TMP144
PACKAGE
YFF DSBGA (4)
YMT DSBGA (4)
BODY SIZE (NOM)
0.76 mm x 0.96 mm
0.76 mm x 0.96 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VCC
VCC
VCC
VCC
0.1µ F
0.1µ F
0.1µ F
0.1µ F
Host
TX
V+
V+
V+
V+
RX
TX
RX
TX
RX
TX
RX
TX
TMP144
U1
TMP144
U2
TMP144
U(n-1)
TMP144
U(n)
GND
GND
GND
GND
RX
Up to 16 TMP144 devices can be configured as a daisy-chain. (See Device Nomenclature)
Simplified Application
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.
Product Folder Links: TMP144
Copyright © 2021 Texas Instruments Incorporated
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