EMC2103-4中文资料Closed Loop Fan Controller数据手册Microchip规格书

描述 Description

The EMC2103 is an SMBus compliant fan controller with up to up to 3 external and 1 internal temperature channels. The fan driver can be operated using two methods each with two modes. The methods include an RPM based Fan Speed Control Algorithm and a direct PWM drive setting. The modes include manually programming the desired settings or using the internal programmable temperature look-up table to select the desired setting based on measured temperature.The temperature monitors offer 1°C accuracy (for external diodes) with sophisticated features to reduce errors introduced by series resistance and beta variation of substrate thermal diode transistors commonly found in processors.The EMC2103 also includes a hardware programmable temperature limit and dedicated system shutdown output for thermal protection of critical circuitry.

特性 Features

Features
• Programmable Fan Control circuit
• 4-wire fan compatible
• High and low frequency PWM
• RPM based fan control algorithm
• 2.5% accuracy from 500RPM to 16k RPM
• Detects fan aging and variation
• Temperature Look-Up Table
• Allows programmed fan response to temperature
• Controls fan speed or PWM drive setting
• Allows externally set temperature data to drive fan
• Supports DTS data from CPU
• Up to Three External Temperature Channels (EMC2103-2 only)
• Supports 45nm, 60nm, and 90nm CPU diodes
• Automatically detects and supports CPUs requiring BJT or Transistor models
• Resistance error correction
• Supports discrete transistors (i.e. 2N3904)
• 1°C accurate (60°C to 125°C)
• 0.125°C resolution
• Hardware Programmable Thermal Shutdown Temperature
• Cannot be altered by software
• 65°C to 127°C Range
• Programmable High and Low Limits for all channels
• Internal Temperature Monitor
• 2°C accuracy
• 0.125°C resolution
• 3.3V Supply Voltage
• SMBus 2.0 Compliant
• SMBus Alert compatible
• Two dedicated GPIOs (EMC2103-2 and EMC2103-4 only)
• Available in 12-pin, QFN RoHS Compliant Package (EMC2103-1) or 16-pin, QFN RoHS Compliant Package (EMC2103-2 and EMC2103-4)
Applications
• Notebook Computers
• Projectors
• Graphics Cards
• Industrial and Networking Equipment

应用 Application

·Notebook Computers
·Projectors
·Graphics Cards
·Industrial and Networking Equipment

简介

EMC2103-4属于集成电路（IC）的热管理。由制造生产的EMC2103-4热管理热管理 IC 是根据温度控制电路电源的半导体器件。这些 IC 的功能包括风扇控制、硬件监控器、温度监控系统、热监控器、热电偶放大器、热电偶调节器和温度计–温控器。检测温度范围为 -260℃ 至 +1800℃，输出类型有 I2C、SMBus、低电平有效/高电平有效、模拟电压、开漏、PWM、SPI、2 线串行和并行–串行。