Overview
The TMP75C-Q1 is an integrated digital temperature sensor produced by Texas Instruments. It features a 12-bit analog-to-digital converter (ADC) and can operate with a supply voltage as low as 1.8 V. This device is available in SOIC-8 and VSSOP-8 packages and does not require any external components to sense temperature. The TMP75C-Q1 is designed to read temperatures with a high resolution of 0.0625°C and is specified over a wide temperature range of –40°C to +125°C. It is pin and register compatible with the NCT75 and ADT75, making it a versatile option for various applications.
Key Specifications
| Parameter | Description | Min | Max | Unit | |
|---|---|---|---|---|---|
| Operating Temperature Range | –40 | 125 | °C | ||
| Operating Supply Range | 1.4 | 3.6 | V | ||
| Temperature Resolution | 0.0625 | °C | |||
| Temperature Accuracy (Error) | 0°C to +70°C | ±0.25 | ±1 | °C | |
| –20°C to +85°C | ±0.5 | ±2 | °C | ||
| –40°C to +125°C | ±1 | ±3 | °C | ||
| Quiescent Current | Serial bus inactive | 15 | 37 | µA | |
| Serial bus active, SCL frequency = 400 kHz | 25 | µA | |||
| Serial bus active, SCL frequency = 3.4 MHz | 95 | µA | |||
| Shutdown Current | Serial bus inactive | 0.3 | 8 | µA | |
| Serial bus active, SCL frequency = 400 kHz | 10 | µA | |||
| Serial bus active, SCL frequency = 3.4 MHz | 80 | µA | |||
| ADC Resolution | 12 | Bits | |||
| Conversion Time (One-shot mode) | 20 | 27 | 35 | ms | |
| Update Rate | 80 | ms |
Key Features
- Qualified for Automotive Applications and AEC-Q100 certified with a temperature grade 1: –40°C to 125°C.
- Digital output with two-wire serial interface (SMBus compatible).
- Up to 8 pin-programmable bus addresses.
- Overtemperature ALERT pin with programmable trip values.
- Shutdown mode for battery power saving.
- One-shot conversion mode.
- Low-voltage alternative to NCT75 and ADT75.
- Factory-calibrated temperature accuracy.
- Noise-immune digital interface.
Applications
The TMP75C-Q1 is ideal for thermal management and protection in various applications, including:
- Consumer electronics.
- Computer systems.
- Communication devices.
- Industrial equipment.
- Environmental monitoring and HVAC systems.
- Power supply and battery thermal protection.
- Electrical motor driver thermal protection.
- Video game consoles.
Q & A
- What is the operating temperature range of the TMP75C-Q1?
The TMP75C-Q1 operates over a temperature range of –40°C to +125°C.
- What is the resolution of the temperature readings provided by the TMP75C-Q1?
The TMP75C-Q1 provides temperature readings with a resolution of 0.0625°C.
- What are the package options available for the TMP75C-Q1?
The TMP75C-Q1 is available in SOIC-8 and VSSOP-8 packages.
- What is the operating supply voltage range for the TMP75C-Q1?
The TMP75C-Q1 can operate with a supply voltage ranging from 1.4 V to 3.6 V.
- Does the TMP75C-Q1 require external components to sense temperature?
No, the TMP75C-Q1 does not require any external components to sense temperature.
- What is the quiescent current of the TMP75C-Q1 in active mode?
The quiescent current in active mode is typically 15 µA.
- What is the shutdown current of the TMP75C-Q1?
The shutdown current is typically 0.3 µA.
- Is the TMP75C-Q1 compatible with SMBus and two-wire interfaces?
- Can multiple TMP75C-Q1 devices be connected on the same bus?
- What are some typical applications of the TMP75C-Q1?
The TMP75C-Q1 is used in consumer electronics, computer systems, communication devices, industrial equipment, environmental monitoring, and HVAC systems, among others.
