The LM75B can be configured for different operation conditions. It can be set in normal mode to periodically monitor the ambient temperature, or in shutdown mode to minimize power consumption. 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 NXP LM75B is a temperature-to-digital converter designed as an industry-standard replacement for the LM75 and LM75A. It utilizes an on-chip band gap temperature sensor with Sigma-Delta A-to-D conversion to provide high-resolution thermal monitoring.
The device features a 2-wire serial I2C-bus interface capable of supporting up to eight devices on the same bus. It includes programmable overtemperature shutdown and hysteresis limits, configurable via set-point registers communicated by a controller.
| Temperature resolution | 0.125 °C |
|---|---|
| Power supply range | 2.8 V to 5.5 V |
| Operating temperature range | -55 °C to +125 °C |
| Supply current (shutdown) | 1.0 nA |
| Temperature accuracy (-25°C to +100°C) | +2 °C |
The device provides a temperature resolution of 0.125 °C.
The sensor operates with a power supply range from 2.8 V to 5.5 V.
The supply current is 1.0 nA in shutdown mode.