The EVAL-ADT7470EBZ is an evaluation board for temperature sensor hub and fan controller device ADT7470. The ADT7470 controller is a multichannel temperature sensor and PWM fan controller and fan speed monitor for noise sensitive systems requiring active system cooling. It is designed to interface directly to an I2C bus and control/monitor the fans using a service processor. The device can monitor up to ten temperature sensors. It can also monitor and control the speed of four fans so that they operate at the lowest possible speed for minimum acoustic noise. A FULL_SPEED input is provided to allow the fans to be "blasted" to 100% via external hardware control, under extreme thermal conditions or on system startup. An SMBALERT interrupt communicates error conditions such as fan under speed, fan failure to the system service processor. Individual error conditions can then be read from status registers over the I2C bus.
- Monitors up to 10 remote temperature sensors
- Monitors and controls speed of up to 4 fans independently
- PWM outputs drive each fan under software control
- Full speed input allows fans to be blasted 100% by external hardware
- SMBALERT interrupt signals failures to system controller
- Tristate ADDR pin allows up to 3 devices on a single bus
- Temperature decoder interprets TMP05/TMP06 temperature sensors and communicates values over I2C bus
- Limit comparison of all monitored values
工业, 通信与网络
(EN)
