The PCT2075 also includes an open-drain output (OS) which becomes active when the temperature exceeds the programmed limits. The OS output operates in either of two selectable modes: OS comparator mode or OS interrupt mode. Its active state can be selected as either HIGH or LOW. The fault queue that defines the number of consecutive faults in order to activate the OS output is programmable as well as the set-point limits.
The PCT2075 is a temperature-to-digital converter featuring ±1 °C accuracy over -25 °C to +100 °C range. It uses an on-chip band gap temperature sensor and Sigma-Delta A-to-D conversion technique with an overtemperature detection output that serves as a drop-in replacement for other LM75 series thermal sensors.
The device communicates via the 2-wire serial I2C-bus Fast-mode Plus interface and includes programmable set-point registers for overtemperature shutdown and hysteresis limits. It features an open-drain output (OS) that becomes active when temperature exceeds programmed limits, operating in either comparator or interrupt mode.
| Temperature Accuracy (-25°C to +100°C) | ±1 °C (max.) |
|---|---|
| Operating Temperature Range | -55 °C to +125 °C |
| Power Supply Range | 2.7 V to 5.5 V |
| Temperature Resolution | 0.125 °C |
| Interface Speed | 1 MHz Fast-mode Plus |
The device offers ±1 °C accuracy from -25 °C to +100 °C and ±2 °C accuracy from -55 °C to +125 °C.
The PCT2075 operates with a power supply range from 2.7 V to 5.5 V.
Yes, it is a pin-for-pin replacement for LM75 series but allows up to 27 devices on the bus.