Specifications
| Type | Description |
|---|---|
| Part Number | TMP441 |
| Manufacturer | Texas Instruments |
| Product Type | Remote temperature sensor |
| Category | Sensors |
| Package / Case | SOT23-8, DCN package, 8-lead |
| Remote channels | 1 |
| Local channels | 1 |
| Interface | Two-Wire/SMBus serial interface |
| Two-wire address | 10011xx |
| Package marking | DIGI |
| Supply voltage absolute maximum | +7 V |
| Input voltage absolute maximum, pins 1, 2, 3, and 4 | -0.5 to VS + 0.5 V |
| Input voltage absolute maximum, pins 6 and 7 | -0.5 to 7 V |
| Input current absolute maximum | 10 mA |
| Operating temperature absolute maximum range | -55 to +127 °C |
| Storage temperature absolute maximum range | -60 to +130 °C |
| Junction temperature absolute maximum | +150 °C |
| ESD rating HBM | 3000 V |
| ESD rating CDM | 1000 V |
| ESD rating MM | 200 V |
| Local temperature sensor error, -40 °C to +125 °C, VS 2.7 V to 5.5 V | typ ±1.25 °C, max ±2.5 °C |
| Local temperature sensor error, 0 °C to +100 °C, VS 3.3 V | typ ±0.25 °C, max ±1 °C |
| Remote temperature sensor error, TA 0 °C to +100 °C, TDIODE -40 °C to +150 °C, VS 3.3 V | typ ±0.25 °C, max ±1 °C |
| Remote temperature sensor error, TA -40 °C to +100 °C, TDIODE -40 °C to +150 °C, VS 3.3 V | typ ±0.5 °C, max ±1.5 °C |
| Remote temperature sensor error, TA -40 °C to +125 °C, TDIODE -40 °C to +150 °C | typ ±3 °C, max ±5 °C |
| Temperature error vs supply | typ 0.2 °C/V, max ±0.5 °C/V |
| Local conversion time | min 12 ms, typ 15 ms, max 17 ms |
| Remote conversion time, beta correction enabled, RC=1 | min 97 ms, typ 126 ms, max 137 ms |
| Remote conversion time, beta correction enabled, RC=0 | min 36 ms, typ 47 ms, max 52 ms |
| Remote conversion time, beta correction disabled, RC=1 | min 72 ms, typ 93 ms, max 100 ms |
| Remote conversion time, beta correction disabled, RC=0 | min 33 ms, typ 44 ms, max 47 ms |
| Local temperature resolution | 12 bits |
| Remote temperature resolution | 12 bits |
| Remote sensor source current high | 120 µA |
| Remote sensor source current medium high | 60 µA |
| Remote sensor source current medium low | 12 µA |
| Remote sensor source current low | 6 µA |
| Remote transistor ideality factor, beta correction 1000 and GND collector-connected sensor | 1.000 |
| Remote transistor ideality factor, beta correction 0111 or diode-connected sensor | 1.008 |
| Beta correction range | 0.1 to 27 |
| SMBus logic input high voltage | min 2.1 V |
| SMBus logic input low voltage | max 0.8 V |
| SMBus input hysteresis | 500 mV |
| SMBus output low sink current | 6 mA |
| SDA output low voltage | typ 0.15 V, max 0.4 V |
| SMBus logic input current | -1 to +1 µA |
| SMBus input capacitance | 3 pF |
| SMBus clock frequency | max 3.4 MHz |
| SMBus timeout | min 25 ms, typ 32 ms, max 35 ms |
| SCL falling edge to SDA valid time | max 1 µs |
| Digital input capacitance | 3 pF |
| Digital input high voltage | min 0.7(V+), max (V+) + 0.5 V |
| Digital input low voltage | min -0.5 V, max 0.3(V+) V |
| Digital input leakage current | max 1 µA |
| Specified supply voltage range | 2.7 to 5.5 V |
| Quiescent current, 0.0625 conversions per second | typ 35 µA, max 45 µA |
| Quiescent current, eight conversions per second, beta correction disabled | typ 0.7 mA, max 1 mA |
| Shutdown current, serial bus inactive | typ 3 µA, max 10 µA |
| Shutdown current, serial bus active, fS=400 kHz | typ 90 µA |
| Shutdown current, serial bus active, fS=3.4 MHz | typ 350 µA |
| Undervoltage lockout | min 2.3 V, typ 2.4 V, max 2.6 V |
| Power-on reset threshold | min 1.6 V, max 2.3 V |
| Specified temperature range | -40 to +125 °C |
| Storage range | -60 to +130 °C |
| Thermal resistance | 170 °C/W |
| V+ pin function | Positive supply voltage, 2.7 V to 5.5 V |
| SDA pin function | Serial data line for SMBus, open-drain; requires pull-up resistor to V+ |
| SCL pin function | Serial clock line for SMBus, open-drain; requires pull-up resistor to V+ |
| Remote sensor connection | DXP positive, DXN negative |
| Recommended supply bypass capacitor | 0.1 µF |
| Typical SMBus pull-up resistor | 10 kΩ |
| Recommended series resistance | <1 kΩ |
| Recommended differential capacitance | <500 pF |
| Datasheet Status | request_only |
Product Overview
The device is supplied in an SOT23-8, DCN, 8-lead package with DIGI package marking. V+ on pin 8 accepts a 2.7 V to 5.5 V positive supply. SDA on pin 6 and SCL on pin 7 are open-drain SMBus lines that require pull-up resistors to V+. The remote sensor connects with DXP as positive and DXN as negative on pins 1 and 2.
Key Features
- One local and one remote temperature channel
- Two-Wire/SMBus serial interface for configuration and readout
- 12-bit local and remote temperature resolution
- Specified supply voltage range of 2.7 V to 5.5 V
- SMBus clock frequency supports up to 3.4 MHz
- Remote beta correction range from 0.1 to 27
- Open-drain SDA and SCL require pull-up resistors
- Remote sensor connects through DXP positive and DXN negative
- SOT23-8 DCN package with DIGI marking
- Recommended 0.1 µF supply bypass capacitor
Typical Applications
- Local temperature measurement
- Remote temperature measurement
- SMBus temperature monitoring
- Diode-connected remote sensors
- GND collector-connected remote sensors
- Beta-corrected remote sensing
- 2.7 V to 5.5 V systems
Procurement Notes
When requesting a quote for TMP441, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
How many temperature channels does the TMP441 provide?
The TMP441 provides one local temperature channel and one remote temperature channel. Both local and remote temperature sensors have 12-bit resolution, with readout and device configuration handled through the Two-Wire/SMBus serial interface.
What supply range is specified for the TMP441?
The TMP441 specified supply voltage range is 2.7 V to 5.5 V. Its V+ pin is pin 8, and the extracted pin description identifies it as the positive supply voltage input for that same range.
What package is used for the TMP441?
The TMP441 is listed in an SOT23-8, DCN package with 8 leads. The package marking for the TMP441 SOT23-8 DCN package is DIGI, and the listed thermal resistance is 170 °C/W for SOT23-8 θJA.
What SMBus electrical details are specified?
The SMBus interface uses SCL and SDA. The logic input high voltage is at least 2.1 V, logic input low voltage is at most 0.8 V, input capacitance is 3 pF, and the SMBus clock frequency is specified up to 3.4 MHz.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 28, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.