ADT7466
目录
规格................................................. .................................... 3
串行总线时序............................................... .......................... 5
绝对最大额定值............................................... ............. 6
热特性................................................ .............. 6
ESD注意事项................................................ .................................. 6
引脚配置和功能说明............................. 7
典型性能特征............................................. 8
功能说明................................................ .................. 11
测量输入................................................ .................. 11
连续测量................................................ ........... 11
风扇转速测控..................................... 11
该ADT7466 ........................................... 11的内部寄存器
工作原理............................................... ....................... 12
串行总线接口............................................... ...................... 12
写和读操作.............................................. ......... 14
报警响应地址（ ARA ） ............................................ .... 15
SMBus超时................................................ .......................... 15
电压测量................................................ ................ 15
参考电压输出............................................... ........... 16
引脚11和引脚12的配置......................................... 16
温度测量................................................ ....... 17
串联电阻抵消............................................... ... 17
温度测量方法........................................ 17
采用分立晶体管............................................... .......... 17
温度测量用热敏电阻..................... 19
读取温度从ADT7466 .............................. 21
额外的ADC功能............................................... ........ 22
限值................................................ ................................ 22
警报中断行为............................................... ............. 23
配置ADT7466 THERM引脚配置为输出......... 26
风扇驱动................................................ ..................................... 27
PWM或开关模式风扇驱动............................................ 27
风扇转速测量............................................... ............ 27
范初创超时............................................. ................... 29
自动风扇速度控制.............................................. .... 30
启动风扇............................................... ........................... 31
XOR测试模式............................................... ................................ 32
应用电路................................................ ......................... 33
ADT7466寄存器映射............................................... .................. 34
注册详细................................................ ........................... 36
外形尺寸................................................ ....................... 48
订购指南................................................ .......................... 48
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