MAX6628 - 精度为±1°C的远端数字温度传感器，带有SPI兼容的串行接口

MAX6628是Maxim美信半导体公司的一款1-Wire器件产品，MAX6628是精度为±1°C的远端数字温度传感器，带有SPI兼容的串行接口，本站介绍了MAX6628的封装应用图解、特点和优点、功能等，并给出了与MAX6628相关的Maxim元器件型号供参考。

MAX6628 - 精度为±1°C的远端数字温度传感器，带有SPI兼容的串行接口 - 1-Wire器件 - 首款远端温度检测器，SPI兼容接口、SOT封装，具有±1°C的精度和12位(+0.0625°C)分辨率 - 美信半导体

产品概述

The MAX6627/MAX6628 precise digital temperature sensors report the temperature of a remote sensor. The remote sensor is a diode-connected transistor, typically a low-cost, easily mounted 2N3904 NPN type that replaces conventional thermistors or thermocouples. The MAX6627/MAX6628 can also measure the die temperature of other ICs, such as microprocessors (µPs) or microcontrollers (µCs) that contain an on-chip, diode-connected transistor.

Remote accuracy is ±1°C when the temperature of the remote diode is between 0°C and +125°C and the temperature of the MAX6627/MAX6628 is +30°C. The temperature is converted to a 12-bit + sign word with 0.0625°C resolution. The architecture of the device is capable of interpreting data as high as +145°C from the remote sensor. The MAX6627/MAX6628 temperature should never exceed +125°C.

These sensors are 3-wire serial interface SPI™ compatible, allowing the MAX6627/MAX6628 to be readily connected to a variety of µCs. The MAX6627/MAX6628 are read-only devices, simplifying their use in systems where only temperature data is required.

Two conversion rates are available, one that continuously converts data every 0.5s (MAX6627), and one that converts data every 8s (MAX6628). The slower version provides minimal power consumption under all operating conditions (30µA, typ). Either device can be read at any time and provide the data from the last conversion.

Both devices operate with supply voltages between +3.0V and +5.5V, are specified between -55°C and +125°C, and come in space-saving 8-pin SOT23 and lead-free TDFN packages.

关键特性

以下关键特性由Maxim美信半导体提供：

Accuracy

±1°C (max) from 0°C ≤ TRJ ≤ +125°C, TA = +30°C

±2.4°C (max) from -55°C ≤ TRJ ≤ +100°C,

0°C ≤ TA ≤ +70°C

12-Bit + Sign, 0.0625°C Resolution

Low Power Consumption

30µA (typ) (MAX6628)

200µA (typ) (MAX6627)

Operating Temperature Range (-55°C to +125°C)

Measurement Temperature Range, Remote Junction (-55°C to +145°C)

0.5s (MAX6627) or 8s (MAX6628) Conversion Rate

SPI-Compatible Interface

+3.0V to +5.5V Supply Range

8-Pin SOT23 and TDFN Packages

Lead-Free Version Available (TDFN Package)

热门应用

硬盘驱动器

工业控制系统

笔记本电脑、PC

智能电池组/充电器

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