SE95D,112【PDF 1/27 页】IC SENSOR TEMP 2.8-5.5V SOT96-1

收藏本站

您好，
买卖IC网欢迎您。
请登录
免费注册

买卖IC网

Sheet目录46

[1页]2页 3页 4页 5页

1. 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 I

C-bus interface:

" Conguration 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

" Identication 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. There are three selectable logic address

pins (pins A2 to A0) so that eight devices can be connected on the same bus without

address conict.

The SE95 can be congured 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 and OS interrupt mode. Its active state can be selected as either HIGH

or LOW. The fault queue that denes the number of consecutive faults in order to activate

the OS output is programmable as well as the set-point limits.

The temperature register always stores a 13-bit twos complement data giving a

temperature resolution of 0.03125 癈. This high temperature resolution is particularly

useful in applications of measuring precisely the thermal drift or runaway. For normal

operation and compatibility with the LM75A, only the 11 MSBs are read, with a resolution

of 0.125 癈 to provide the accuracies specied. To be compatible with the LM75, read only

the 9 MSBs.

The device is powered-up in normal operation mode with the OS in comparator mode,

temperature threshold of 80 癈 and hysteresis of 75 癈, so that it can be used as a

stand-alone thermostat with those pre-dened temperature set points. The conversion

rate is programmable, with a default of 10 conversions/s.

SE95

Ultra high accuracy digital temperature sensor and thermal

watchdog

Rev. 07 2 September 2009

Product data sheet

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式