MAX1618

远端温度传感器,带有SMBus串行接口

业内尺寸最小的远端二极管温度传感器 - 提供测量、保护功能,µMAX-10封装


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说明

The MAX1618 precise digital thermometer reports 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. Remote accuracy is ±3°C for multiple transistor manufacturers, with no calibration needed. The MAX1618 can also measure the die temperature of other ICs, such as microprocessors, that contain an on-chip, diode-connected transistor.

The 2-wire serial interface accepts standard System Management Bus (SMBus™) Write Byte, Read Byte, Send Byte, and Receive Byte commands to program the alarm thresholds and to read temperature data. The data format is 7 bits plus sign, with each bit corresponding to 1°C, in two's complement format. Measurements can be done automatically and autonomously, with the 16Hz conversion rate or programmed to operate in a single-shot mode.

The thermostat mode configures the active-low ALERT output as an interrupt or as a temperature reset that remains active only while the temperature is above the maximum temperature limit or below the minimum temperature limit. The active-low ALERT output polarity in thermostat mode can be configured for active high or active low. Fan control is implemented using this active-low ALERT output.

The MAX1618 is available in a small (1.1mm high) 10-pin µMAX package.
MAX1618:典型工作电路 MAX1618:典型工作电路 放大+

关键特性

  • Single Channel: Measures Remote CPU Temperature
  • No Calibration Required
  • SMBus 2-Wire Serial Interface
  • Programmable Under/Overtemperature Alarms
  • Overtemperature Output for Fan Control (Thermostat Mode)
  • Supports SMBus Alert Response Accuracy
    • ±3°C (+60°C to +100°C)
    • ±5°C (-55°C to +120°C)
  • 3°A (typ) Standby Supply Current
  • 900°A (max) Supply Current in Autoconvert Mode
  • +3V to +5.5V Supply Range
  • Small 10-Pin °MAX Package

应用

  • 局端电信设备
  • 计算机:台式机、工作站和服务器
  • 工业控制
  • LAN服务器
  • 多芯片模块
  • 智能电池组/充电器
  • 测试与测量设备

技术资料

应用笔记 694 Temperature Sensor ICs Simplify Designs

质量和环境数据

产品可靠性报告: MAX1618.pdf 
无铅封装的锡(Sn)晶须报告

其它资源

温度系列产品,按产品类型划分
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

质量管理体系 >
环境管理体系 >

 
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类型 编号 PDF 标题
应用笔记 694 Temperature Sensor ICs Simplify Designs