LM85 Datasheet (National Semiconductor)

LM85, Hardware Monitor

The LM85, hardware monitor, has a two wire digital interface compatible with SMBus 2.0.

Using an 8-bit Σ∆ ADC, the LM85 measures: * the temperature of two remote diode connected transistors as well as its own die * the VCCP, 2.5V, 3.3VSBY, 5.0V, and 12V supplies (internal scaling res

LM85 Features

* n 2-wire, SMBus 2.0 compliant, serial digital interface n 8-bit Σ∆ ADC n Monitors VCCP, 2.5V, 3.3 VSBY, 5.0V, and 12V motherboard/processor supplies n Monitors 2 remote thermal diodes n Programmable autonomous fan control based on temperature readings Applications n Desktop PC n Microprocessor base