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SE95 Datasheet Ultra high accuracy digital temperature sensor and thermal Watchdog

Manufacturer: NXP Semiconductors

General Description

The SE95 is a temperature-to-digital converter using an on-chip band gap temperature sensor and Sigma Delta analog-to-digital conversion technique.

The device is also a thermal detector providing an overtemperature detection output.

The SE95 contains a number of data registers accessed by a controller via the 2-wire serial I2C-bus interface: • Configuration register (Conf) to store the device settings such as sampling rate, device operation mode, OS operation mode, OS polarity, and OS fault queue • Temperature register (Temp) to store the digital Temp reading • Set-point registers (Tos and Thyst) to store programmable overtemperature shutdown and hysteresis limits • Identification register (ID) to store manufacturer numbers The device includes an open-drain output (pin OS) which becomes active when the temperature exceeds the programmed limits.

Overview

SE95 Ultra high accuracy digital temperature sensor and thermal watchdog Rev.

07 — 2 September 2009 Product data sheet 1.

Key Features

  • I Pin-for-pin replacement for industry standard LM75/LM75A I Specification of a single part over supply voltage from 2.8 V to 5.5 V I Small 8-pin package types: SO8 and TSSOP8 (MSOP8) I I2C-bus interface to 400 kHz with up to 8 devices on the same bus I Supply voltage from 2.8 V to 5.5 V I Temperature range from.
  • 55 °C to +125 °C I 13-bit ADC that offers a temperature resolution of 0.03125 °C I Temperature accuracy of ± 1 °C from.
  • 25 °C to +100 °C I Programmable temperature thresh.