TI-TMP139.pdf
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TMP139 0.5 °C Accuracy, JEDEC DDR5 Grade B, Digital Temperature Sensor With I
2
C
and I3C Interface
1 Features
• Supports JEDEC JESD302-1 DDR5 Grade B
temperature sensor
• Exceeds JEDEC temperature accuracy
specification:
– ±0.25 °C typical
– ±0.5 °C maximum (+75 °C to +95 °C)
– ±0.75 °C maximum (–40 °C to +125 °C)
• Operating temperature range: –40 °C to +125 °C
• Low power consumption:
– 4.7-µA typical average quiescent current
– 0.6-µA typical standby current
• I/O power supply of 1 V
• Core power supply of 1.8 V
• Two wire serial bus interface (I
2
C and I3C basic
operation modes)
• Up to 12.5-MHz data transfer rate in I3C basic
mode
• In Band Interrupt (IBI) for alerting host
• Parity error check function for host writes
• Packet error check function for host read and
writes
• 11-bit resolution: 0.25 °C (1 LSB)
• Standard 6-ball DSBGA (WCSP) package with
0.5-mm pitch
2 Applications
• DDR5 DIMM modules
• Server
• Laptops
• Workstations
• SSDs
3 Description
The TMP139 is a high-accuracy temperature sensor
with an I
2
C / I3C compliant digital interface supporting
In Band Interrupts (IBI). Supporting the interface
requirements of JEDEC JESD302-1 for Grade-B
devices, the TMP139 exceeds the temperature
accuracy requirements of the specification, enabling
higher performance DDR5 memory modules.
Available in a compact 6-ball DSBGA package,
TMP139 is designed for high-speed, high-accuracy
and low-power thermal monitoring applications.
The TMP139 has a typical accuracy of ±0.25 °C over
the entire temperature range from –40 °C to +125 °C
and offers an on-chip 11-bit analog-to-digital converter
(ADC) providing a temperature resolution of 0.25 °C.
The TMP139 is designed to operate from a core
power supply of 1.8 V and I/O power supply of 1 V,
with a low typical average quiescent current of 4.7 µA
when performing conversions every 125 ms.
Table 3-1. Device Information
PART NUMBER PACKAGE
(1)
BODY SIZE (NOM)
TMP139 DSBGA (6)
1.328 mm × 0.828
mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
TMP139
V
DDIO
= 1.0V V
DDSPD
= 1.8V
SDA
SCL
V
DDIO
V
DDSPD
VSS
SA
TMP139
SDA
SCL
V
DDIO
V
DDSPD
VSS
SA
LSCL
LSDA
SPD Hub
Local Sideband Bus
Figure 3-1. Simplified Schematic
www.ti.com
TMP139
SNIS217 – DECEMBER 2020
Copyright © 2021 Texas Instruments Incorporated
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Product Folder Links: TMP139
TMP139
SNIS217 – DECEMBER 2020
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.
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