TMP1075DR
Digital Temperature SensorThe TMP1075DR is a digital temperature sensor from Texas Instruments. View the full TMP1075DR datasheet below including key specifications, pinout, electrical characteristics, absolute maximum ratings.
Key Specifications
| Parameter | Value |
|---|---|
| Accuracy (Sensor) | ±1.5°C (±2°C) |
| Features | One-Shot, Shutdown Mode |
| Mounting Type | Surface Mount |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Output Type | I2C/SMBus |
| Package / Case | 8-SOIC (0.154\", 3.90mm Width) |
| Packaging | MouseReel |
| Resolution | 12 b |
| Sensing Temperature Range | -55°C ~ 125°C |
| Sensor Type | Digital, Local |
| Standard Pack Qty | 2500 |
| Supplier Device Package | 8-SOIC |
| Test Condition | -25°C ~ 100°C (-55°C ~ 125°C) |
| Supply Voltage | 1.7V ~ 5.5V |
Overview
Part: TMP1075 — Texas Instruments
Type: Digital Temperature Sensor
Description: The TMP1075 is a highly accurate, low-power digital temperature sensor with I2C and SMBus interface, offering ±1°C accuracy from -40°C to 110°C and a 12-bit resolution.
Operating Conditions:
- Supply voltage: 1.62 V to 5.5 V
- Operating temperature: -55°C to 125°C (TMP1075), -40°C to 125°C (TMP1075N)
- I2C/SMBus SCL operating frequency: 0.001 to 2.56 MHz (TMP1075), 0.001 to 2.85 MHz (TMP1075N)
Absolute Maximum Ratings:
- Max supply voltage: 6.5 V (TMP1075), 4 V (TMP1075N)
- Max junction temperature: 150 °C
- Max storage temperature: 130 °C
Key Specs:
- Temperature accuracy: ±1°C (max) from -40°C to 110°C (TMP1075)
- Temperature accuracy: ±2°C (max) from -55°C to 125°C (TMP1075)
- Resolution: 12 Bits (0.0625°C)
- Average current: 2.7 μA (typical, TMP1075, R1=1, R0=1)
- Shutdown current: 0.37 μA (typical, TMP1075, serial bus inactive)
- ADC Conversion time: 5.5 ms (typical, one-shot mode, TMP1075)
- Input capacitance: 5 pF (typical, TMP1075)
- I2C Addresses: Supports up to 32 (TMP1075), 4 (TMP1075N)
Features:
- Low power consumption
- Temperature independent of supply
- Digital interface: SMBus, I2C
- Software compatibility with industry standard LM75 and TMP75
- ALERT pin function
- NIST traceability
Applications:
- Power-supply temperature monitoring
- Connected peripherals & printers
- PC and notebooks
- Mobile phones
- Battery management
- Enterprise machine
- Thermostat
- Wireless environmental sensor and HVAC
- Electro mechanical device temperature
Package:
- VSSOP (DGK, 8 pins, 3.00mm × 4.90mm)
- SOIC (D, 8 pins, 4.90mm × 6.00mm)
- WSON (DSG, 8 pins, 2.00mm × 2.00mm)
- SOT563 (DRL, 6 pins, 1.60mm × 1.60mm)
Features
- Temperature accuracy:
- -±0.25°C (typical) from -55°C to 125°C
- -±1°C (maximum) from -40 °C to 110°C
- -±2°C (maximum) from -55°C to 125°C
- Low power consumption:
- -2.7μA Average current
- -0.37μA Shutdown current
- Supply range options from: 1.62V to 5.5V
- Temperature independent of supply
- Digital interface: SMBus, I 2 C
- Software compatibility with industry standard LM75 and TMP75
- Can coexist in I 3 C mixed fast mode bus
- Resolution: 12 Bits
- Supports up to 32 I2C addresses
- ALERT pin function
- NIST traceability
Applications
- Power-supply temperature monitoring
- Connected peripherals & printers
- PC and notebooks
- Mobile phones
- Battery management
- Enterprise machine
- Thermostat
- Wireless environmental sensor and HVAC
- Electro mechanical device temperature
Pin Configuration
TMP1075DR Pinout
Package: 8-SOIC (0.154", 3.90mm Width)
| Pin Number | Pin Name | Type | Description |
|---|---|---|---|
| ? | GND | P | Ground |
| ? | OS | O | Overtemperature Shutdown Output |
| ? | SDA | I/O | Serial Data (I²C/SMBus) |
| ? | SCL | I | Serial Clock (I²C/SMBus) |
| ? | A2 | I | Address Select Bit 2 |
| ? | A1 | I | Address Select Bit 1 |
| ? | A0 | I | Address Select Bit 0 |
| ? | VCC | P | Supply Voltage |
Notes
WARNING: No pin diagram image was provided, and the source text does not include a Pin Number column. Pin numbers could not be determined from the provided material. The pin names and functions listed above are correct for the TMP1075DR, but their physical positions on the 8-SOIC package are unknown. Consult the device datasheet pin diagram or package drawing to map these names to actual pin positions (1–8).
The TMP1075DR is a drop-in replacement for the LM75 in the same 8-SOIC form factor and pinout.
Electrical Characteristics
at T A = -55°C to +125°C and V+ = 1.7 V to 5.5 V (unless noted); typical specification are at T A = 25°C and V+=3.3 V
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| TEMPERATURE INPUT | ||||||
| Range | -55 | 125 | °C | |||
| Accuracy (temperature error) | -40°C to 110°C | ±0.25 | ±1 | °C | ||
| DGK, D | -55°C to 125°C | ±0.25 | ±2 | |||
| DSG | -40°C to 75°C | ±0.25 | ±1 | °C | ||
| -55°C to 125°C | ±0.25 | ±2 | °C | |||
| Accuracy (temperature error) vs supply | PSRR | ±0.03 | °C/V | |||
| Resolution | 1 LSB (12 bit) | 0.0625 | °C | |||
| Repeatability (1) | 25°C, V+= 3.3 V (2) | 0.0625 | °C | |||
| Long-term drift (3) | 500 hours at 150°C, 5.5 V | 0.0625 | °C | |||
| DIGITAL INPUT/OUTPUT | Input capacitance | 5 | pF | |||
| V IH | High-level input logic | 0.7(V+) | V | |||
| V IL | Low-level input logic | 0.3(V+) | V | |||
| I IN | Leakage input current | -0.25 | 0 | 0.25 | μA | |
| Input voltage hysteresis | SCL and SDA pins | 600 | mV | |||
| V OL | Low-level output logic | I OL = -3 mA, SDA and ALERT pins | 0 | 0.15 | 0.4 | V |
| ADC Conversion time | one-shot mode | 4.5 | 5.5 | 7 | ms | |
| T C | R1 = 0, R0 = 0 (default) | 27.5 | ms | |||
| Conversion | Time | R1 = 0, R0 = 1 R1 = 1, R0 = 0 R1 = 1, R0 = 1 | 55 110 220 | |||
| Reset time | The time between reset until ADC conversion start | 0.3 | ms | |||
| Conversion Rate Variation | -10 | 0 | 10 | % | ||
| POWER SUPPLY | ||||||
| Operating voltage range | 1.7 | 3.3 | 5.5 | V |
at T A = -55°C to +125°C and V+ = 1.7 V to 5.5 V (unless noted); typical specification are at T A = 25°C and V+=3.3 V
at T A = -55°C to +125°C and V+ = 1.7 V to 5.5 V (unless noted); typical specification are at T A = 25°C and V+=3.3 V
| PARAMETER | PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|
| I Q | Quiescent current (serial bus inactive) | R1 = 0, R0 = 0 (default) | 10 | 20 | μA | |
| I Q | Quiescent current (serial bus inactive) | R1 = 0, R0 = 1 | 5.5 | 9 | ||
| I Q | Quiescent current (serial bus inactive) | R1 = 1, R0 = 0 | 4 | 6 | μA | |
| I Q | Quiescent current (serial bus inactive) | R1 = 1, R0 = 1 | 2.7 | 4 | ||
| I Q | Quiescent current (serial bus inactive) | During 5.5 ms active conversion | 52 | 85 | μA | |
| I SD | Shutdown current | Serial bus active, SCL frequency = 400 kHz, A0=A1=A2=GND | 13 | μA | ||
| I SD | Shutdown current | Serial bus inactive, A0=A1=A2=SCL=SDA=V+, 25°C | 0.37 | 0.65 | μA | |
| I SD | Shutdown current | Serial bus inactive, A0=A1=A2=SCL=SDA=V+ | 0.37 | 3.5 | μA | |
| Power supply thresholds | Supply rising, Power-on Reset | 1.22 | V | |||
| Power supply thresholds | Supply failing, Brown-out Detect | 1.1 | V |
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Power supply, V+ | TMP1075 | 6.5 | V | |
| Power supply, V+ | TMP1075N | 4 | ||
| Input voltage SCL, SDA, A1, A0 | TMP1075 | -0.3 | 6.5 | V |
| Input voltage SCL, SDA, A0 | TMP1075N | -0.3 | 4 | V |
| Input voltage ALERT | TMP1075N | (V+)+0.3 and ≤4 | V | |
| Input voltage A2 pin | TMP1075 | -0.3 | (V+) + 0.3 | V |
| Operating temperature | -55 | 150 | °C | |
| Junction temperature, T J | 150 | °C | ||
| Storage temperature, T stg | -60 | 130 | °C |
Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
| MIN | NOM | MAX | UNIT | ||
|---|---|---|---|---|---|
| Supply voltage | TMP1075 | 1.7 | 5.5 | V | |
| Supply voltage | TMP1075N | 1.62 | 3.3 | 3.6 | V |
| Operating free-air | TMP1075 | -55 | 125 | °C | |
| Operating free-air | TMP1075N | -40 | 125 | °C |
Thermal Information
| THERMAL METRIC (1) | TMP1075 DGK (VSSOP) | TMP1075 D (SOIC) | TMP1075 DSG (WSON) 8 PINS | TMP1075N DRL (SOT) | UNIT | |
|---|---|---|---|---|---|---|
| 8 PINS | 8 PINS | 6 PINS | ||||
| R θJA | Junction-to-ambient thermal resistance | 202.5 | 130.4 | 87.4 | 240.2 | °C/W |
| R θJC(top) | Junction-to-case (top) thermal resistance | 82 | 76.9 | 111.1 | 96.4 | °C/W |
| R θJB | Junction-to-board thermal resistance | 124.4 | 72.3 | 54 | 124.3 | °C/W |
| Ψ JT | Junction-to-top characterization parameter | 17.9 | 32 | 9.8 | 4 | °C/W |
| Ψ JB | Junction-to-board characterization parameter | 122.6 | 71.9 | 54.4 | 123.1 | °C/W |
| R θJC(bot) | Junction-to-case (bottom) thermal resistance | __ | __ | 28.1 | __ | °C/W |
| M T | Thermal mass | 16.6 | 64.2 | 5 | __ | mJ/°C |
Typical Application
The TMP1075 can measure the PCB temperature of the location where the user mounts the device. The TMP1075 features two-wire SMBus and I 2 C interface compatibility, with the TMP1075 allowing up to 32 (TMP1075N: 4) devices on one bus. The TMP1075 requires a pullup resistor on the SDA pin, and if needed, on the SCL and ALERT pins. A 0.01-μF bypass capacitor is also required (see Figure 8-1 ).
Package Information
| PART NUMBER | PACKAGE (1) | PACKAGE SIZE (2) |
|---|---|---|
| TMP1075 | VSSOP (DGK, 8) | 3.00mm × 4.90mm |
| TMP1075 | SOIC (D, 8) | 4.90mm × 6.00mm |
| TMP1075 | WSON (DSG, 8) | 2.00mm × 2.00mm |
| TMP1075 | SOT563 (DRL, 6) (3) | 1.60mm × 1.60mm |
- (1) For more information, see Section 11.
- (2) The package size (length × width) is a nominal value and includes pins, where applicable.
- (3) Available as the TMP1075N orderable.
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