Overview
The NXP PCT2075DP,118 is a digital temperature sensor and thermal watchdog designed for precise temperature measurement and monitoring. This component features an on-chip band gap temperature sensor and utilizes a Sigma-Delta A-to-D conversion technique, providing ±1 °C accuracy over a temperature range of -25 °C to +100 °C. It is compatible with the I2C-bus Fast-mode Plus interface, making it a versatile and reliable choice for various industrial and consumer applications. The device is available in an 8-pin TSSOP package and is RoHS compliant, ensuring environmental sustainability.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | PCT2075DP,118 |
| Package | 8-TSSOP |
| Number of Pins | 8 |
| Min Supply Voltage | 2.7V |
| Max Supply Voltage | 5.5V |
| Min Operating Temperature | -55°C |
| Max Operating Temperature | 125°C |
| Resolution | 0.125 °C (11-bit two’s complement) |
| Interface | 2-Wire, I2C, Serial |
| Nominal Supply Current | 125µA |
| Output Type | Digital, I2C |
| Accuracy | ±1 °C (-25 °C to +100 °C) |
| RoHS Compliance | Yes |
Key Features
- High accuracy: ±1 °C over -25 °C to +100 °C range.
- I2C-bus Fast-mode Plus interface for easy communication.
- Programmable overtemperature shutdown and hysteresis limits.
- Open-drain output (OS) with selectable modes (comparator or interrupt mode).
- Three selectable logic address pins allowing up to 27 devices on the same bus.
- Low power consumption with a nominal supply current of 125µA.
- SDA and SCL inputs are overvoltage tolerant to 5.5V.
- Pin-for-pin replacement for LM75 series thermal sensors.
Applications
The PCT2075DP,118 is suitable for a wide range of applications, including:
- Industrial automation and control systems.
- Consumer electronics requiring precise temperature monitoring.
- Aerospace and automotive systems where temperature accuracy is critical.
- Medical devices and equipment.
- Server and data center thermal management.
Q & A
- What is the accuracy of the PCT2075DP,118 temperature sensor?
The PCT2075DP,118 has an accuracy of ±1 °C over the temperature range of -25 °C to +100 °C. - What is the operating temperature range of the PCT2075DP,118?
The operating temperature range is from -55 °C to +125 °C. - What interface does the PCT2075DP,118 use for communication?
The device uses the I2C-bus Fast-mode Plus interface. - What is the resolution of the temperature measurements?
The resolution is 0.125 °C, achieved through an 11-bit two’s complement data format. - Is the PCT2075DP,118 RoHS compliant?
Yes, the PCT2075DP,118 is RoHS compliant. - What is the power supply range for the PCT2075DP,118?
The power supply range is from 2.7V to 5.5V. - Can multiple PCT2075DP,118 devices be connected on the same bus?
Yes, up to 27 devices can be connected on the same bus due to three selectable logic address pins. - What is the nominal supply current of the PCT2075DP,118?
The nominal supply current is 125µA. - Does the PCT2075DP,118 have overtemperature shutdown capabilities?
Yes, it includes programmable overtemperature shutdown and hysteresis limits. - Is the PCT2075DP,118 compatible with other thermal sensors?
Yes, it is a pin-for-pin replacement for LM75 series thermal sensors.
