TMP144YFFR

The TMP144 digital output temperature sensor can
read temperatures to a resolution of 0.0625°C.
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.
The TMP144 device is designed for spaceconstrained, 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 three 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.

Category: Temperature Sensors

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SPECIFICATION

• 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
• Package:
– 0.76 mm × 0.96 mm, 150-µm maximum height,
4-ball YMT (DSBGA)
– 0.76 mm × 0.96 mm, 310-µm maximum height,
4-ball YBK (DSBGA)
– 0.76 mm × 0.96 mm, 625-µm maximum height,
4-ball YFF (DSBGA)