TMP431BDGKT Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TMP431BDGKT is a dual-channel remote/local temperature sensor IC by Texas Instruments, featuring ±1°C accuracy, SMBus/I2C interface, and programmable temperature limits. Available from $0.64 in TSSOP-8 package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TMP431BDGKT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6435(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel temperature sensing: monitors one remote diode-connected transistor plus local on-chip sensor simultaneously
- High accuracy ±1°C (remote) over -40°C to +125°C range, suitable for precision thermal management
- SMBus/I2C-compatible interface with programmable high/low temperature limit registers and ALERT output
- Low supply current (3.4 mA typical) in compact TSSOP-8 (S-PDSO-G8) package for space-constrained designs
Applications
The TMP431BDGKT is widely used in computing and networking equipment to monitor CPU, GPU, and FPGA junction temperatures, enabling dynamic fan speed control and thermal throttling. It suits telecom infrastructure, industrial control systems, and power supply units where precise remote temperature monitoring is critical to system reliability and protection.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | ANALOG CIRCUIT |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.045mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TMP431BDGKT:
Frequently Asked Questions
What is the temperature measurement accuracy of the TMP431BDGKT?
The TMP431BDGKT provides ±1°C accuracy for the remote temperature channel and ±2°C for the local channel over the operating range of -40°C to +125°C, making it suitable for precision thermal management in computing and industrial applications.
What interface does the TMP431BDGKT use to communicate with a host microcontroller?
The TMP431BDGKT uses an SMBus/I2C-compatible two-wire serial interface operating at standard (100 kHz) and fast (400 kHz) modes, allowing easy integration with microcontrollers and system-on-chip devices without additional components.
What package is the TMP431BDGKT available in, and what are typical applications?
The TMP431BDGKT comes in a TSSOP-8 (S-PDSO-G8) small-outline package with a shrink pitch. It is commonly used in servers, laptops, networking switches, and industrial equipment to monitor processor and board temperatures for thermal protection and fan control.
Can the TMP431BDGKT replace other dual-channel temperature sensors like the ADT7461 or LM90?
Yes, the TMP431BDGKT is pin-compatible and register-compatible with the ADT7461 and LM90, making it a drop-in replacement. It supports the extended temperature range mode and programmable ideality factor correction for various remote sensing transistors.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.6000 | $2.60 |
| 126+ | $0.9750 | $122.85 |
| 250+ | $0.9699 | $242.47 |
| 401+ | $0.7313 | $293.25 |
| 1001+ | $0.6435 | $644.14 |
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