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说明

EMC1843是一款1.8V、3通道、高精度、2线（I^2.C兼容）温度传感器。高级功能，如变化率、关闭、电阻误差校正（REC）、贝塔补偿（支持需要BJT/晶体管型号的CPU二极管）和理想配置相结合，为复杂的环境监测应用提供了强大的解决方案。

EMC1843显示器是第一个引入变化率功能的设备系列。除了温度本身，这些数据还有助于抢先系统f。这种类型的数据可以帮助客户更好地调节他们的应用程序控制温度。

电阻可设置的停机温度可防止烧坏。电阻误差校正自动消除由串联电阻引起的温度误差，从而使热敏二极管的布线更加灵活。贝塔补偿消除了由当今精细几何处理器中常见的低可变贝塔晶体管引起的温度误差。这使得用户无需为每个温度监测应用程序提供独特的传感器配置。这些先进的功能加上±1°的测量精度，为关键温度监测应用提供了一种低成本、高度灵活和准确的解决方案。

特性

1.8V Logic Levels, Compatible with EIA/JEDEC8-7 Standard

Rate of Temperature Change Calculation with Preemptive Alert Limits (Patent-Pending) dT/dt Measurement Programmable Duration and Gain Limits on Rates with Alert
• dT/dt Measurement
• Programmable Duration and Gain
• Limits on Rates with Alert

2 External Temperature Monitors ±1°C Max Accuracy, 25°C to 125°C Ta, 0°C to 127°C Td ±2°C Max Accuracy, -40°C to 125°C Ta, -40°C to 127°C Td 0.125 Resolution Resistance Error Correction for 100Ω Automatic Beta Compensation with BJT/Transistor Model Support Ideality Factor Configuration Supports up to 2.2nF Diode Filter Capacitor Anti-parallel Diodes for Extra Diode Support
• ±1°C Max Accuracy, 25°C to 125°C Ta, 0°C to 127°C Td
• ±2°C Max Accuracy, -40°C to 125°C Ta, -40°C to 127°C Td
• 0.125 Resolution
• Resistance Error Correction for 100Ω
• Automatic Beta Compensation with BJT/Transistor Model Support
• Ideality Factor Configuration
• Supports up to 2.2nF Diode Filter Capacitor
• Anti-parallel Diodes for Extra Diode Support

Internal Temperature ±°1C Max Accuracy, -40°C to 125°C 0.125 Resolution
• ±°1C Max Accuracy, -40°C to 125°C
• 0.125 Resolution

2-Wire / I2C compatible interface Up to 400kHz Clock Rate Support Both Byte and Block Operation Contiguous Block for Read of All Temperatures Programmable or Fixed Address Options
• Up to 400kHz Clock Rate
• Support Both Byte and Block Operation
• Contiguous Block for Read of All Temperatures
• Programmable or Fixed Address Options
• Frequency Hopping Technology Eliminates Noise Sensitivity (Patented)
• ALERT (Bar) pin, Maskable SMBUs / I2C Compatible Interrupt Configurable as Comparator
• SMBUs / I2C Compatible Interrupt
• Configurable as Comparator

THERM pin, Non-Maskable (Bar), Acts as Interrupt or Comparator
• Acts as Interrupt or Comparator
• Programmable temperature limits for ALERT# and THERM#

Register Compatible with EMC141X, EMC142X, and EMC118X

Operating Voltage:1.62V to 3.6V

Temperature Range: -40°C to +125°C

Available in 8-Lead 2.0x2.0 mm WDFN

Applications
• Portable Electronics
• IOT for Low System Voltage
• Handheld Gaming
• Industrial
• Computing
• Temperature sensitive storage
• Embedded applications

参数