I2C fan control ensures continuous system cooling
Dilian Reyes
Abstract
Linear Technology’s LTC1840, a dual fan speed controller for high availability servers and other rack-based network and telecom equipment, is described.
Keywords
Dual fan speed controller
LTC1840
Introduction
Linear Technology’s LTC1840 is a dual fan speed controller for high availability servers and other rack-based network and telecom equipment. The LTC1840 offers advanced control and monitoring capabilities, accessed via an I2C and SMBus compatible 2-wire serial interface. In addition to two fan speed control channels, the LTC1840 also includes a fan tachometer and fault monitoring, nine slave addresses and four general-purpose programmable I/O ...
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