Thermal Monitor and Fan Speed (RPM) Controller

The ADM1034 is a dual-channel remote- and local-temperature sensor and fan controller. The remote channels monitor the temperature of two remote thermal diodes, which may be discrete 2N3904/6s or may be located on a microprocessor die. The device also monitors its own ambient temperature.

FEATUREs
• 1 Local and 2 Remote Temperature Channels
• ±1°C Accuracy on Local and Remote Channels
• Automatic Remote Temperature Channels, Up to 1 kΩ
• Fast (Up to 64 Measurements per Second)
• SMBus 2.0, 1.1, and 1.0 Compliant
• SMBus Address Input/LOCATION Input to UDID
• Programmable Over/Undertemperature Limits
• Programmable Fault Queue
• SMBusALERT Output
• Fail-Safe Overtemperature Comparator Output
• Fan Speed (RPM) Controller
• Look-up Table for Temperature-to-Fan Speed Control
• Linear and Discrete Options for Look-up Table
• FAN_FAULT Output
• THERM Input, Used to Time PROCHOT Assertions
• REF Input, Used as Reference for THERM (PROCHOT)
• 3.0 V to 5.5 V Supply
• Small 16-lead QSOP Package
• This is a Pb-Free Device*

APPLICATIONs
• Desktop and Notebook PCs
• Embedded Systems
• Telecommunications Equipment
• LCD Projectors