MIC281中文资料Dual Temperature Sensor数据手册Microchip规格书

描述 Description

The MIC281 is a digital thermal sensor capable of measuring the temperature of a remote PN junction. It is optimized for applications favoring low cost and small size. The remote junction may be an inexpensive commodity transistor, e.g., 2N3906, or an embedded thermal diode such as found in Intel Pentium* II/III/IV CPUs, AMD Athlon* CPUs, and Xilinx Virtex* FPGAs.The MIC281 is 100% software and hardware backward compatible with the MIC280 and features the same industry-leading noise performance and small size. The advanced integrating A/D converter and analog front-end reduce errors due to noise for maximum accuracy and minimum guardbanding.A 2-wire SMBus 2.0-compatible serial interface is provided for host communication. The clock and data pins are 5V-tolerant regardless of the value of VDD. They will not clamp the bus lines low even if the device is powered down.Superior performance, low power, and small size make the MIC281 an excellent choice for cost-sensitive thermal management applications.

特性 Features

• Remote temperature measurement using embedded thermal diodes or commodity transistors
• Accurate remote sensing ±3°C max., 0°C to 100°C
• Excellent noise rejection
• I2C and SMBus 2.0 compatible serial interface
• SMBus timeout to prevent bus lockup
• Voltage tolerant I/Os
• Low power shutdown mode
• Failsafe response to diode faults
• 3.0V to 3.6V power supply range
• IttyBitty® SOT23-6 Package

简介

MIC281属于集成电路（IC）的线性稳压器控制器。由制造生产的MIC281稳压器 - 线性 + 开关此产品族中的产品用于构建执行 DC-DC 转换或电压调节功能的电路，采用的是开关模式和线性稳压器功能的组合。虽然具体的拓扑各不相同，但此类产品的主要目的是将开关模式技术的效率优势与线性稳压技术的低噪声特性结合在一起。