ADT7490中文资料带 PECI 接口的远程温度监控器和风扇控制器数据手册ONSEMI规格书

描述 Description

The ADT7490 is a thermal monitor and multiple PWM fan controller for noise-sensitive or power-sensitive applications requiring active system cooling. The ADT7490 includes a local temperature sensor, two remote temperature sensors including series resistance cancellation, and monitors CPU temperature with a PECI interface. The ADT7490 can drive a fan using either a low or high frequency drive signal, and measure and control the speed of up to four fans so they operate at the lowest possible speed for minimum acoustic noise.

特性 Features

• 1 local on-chip temperature sensor
• 2 remote temperature sensors
• 3-current external temperature sensors with series resistance cancellation (SRC)
• PECI interface for CPU thermal information and support of up to 4 PECI inputs on one pin
• 3 high frequency or low frequency PWM outputs for use with 3-wire or 4-wire fans
• 4 TACH inputs to measure fan speed
• OS independent automatic fan speed control based on thermal information
• Dynamic TMIN control mode to optimize system acoustics
• Default startup at 100% PWM for all fans for robust operation

应用 Application

• Thermal Management
• Notebook and Desktop Computers
• Servers
• Game Consoles
• RFID Reader

简介

ADT7490属于集成电路（IC）的热管理。由制造生产的ADT7490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。