Rainbow Electronics LM85 User Manual
Lm85 hardware monitor with integrated fan control, General description, Features
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Table of contents
Document Outline
- LM85
- General Description
- Features
- Key Specifications
- Applications
- Block Diagram
- Connection Diagram
- Pin Descriptions
- Absolute Maximum Ratings
- Operating Ratings (Notes , )
- DC Electrical Characteristics
- AC Electrical Characteristics
- Functional Description
- 1.0 SMBUS
- 2.0 FAN REGISTER DEVICE SET-UP
- 3.0 AUTO FAN CONTROL OPERATING MODE
- 4.0 REGISTER SET
- 4.1 Register 20-24h: Voltage Reading
- 4.2 Register 25-27h: Temperature Reading
- 4.3 Register 28-2Fh: Fan Tachometer Reading
- 4.4 Register 30-32h: Current PWM Duty
- 4.5 Register 3Eh: Company ID
- 4.6 Register 3Fh: Version/Stepping
- 4.7 Register 40h: Ready/Lock/Start/Override
- 4.8 Register 41h: Interrupt Status Register 1
- 4.9 Register 42h: Interrupt Status Register 2
- 4.10 Register 43h: VID
- 4.11 Registers 44-4Dh: Voltage Limit Registers
- 4.12 Registers 4E-53h: Temperature Limit Registers
- 4.13 Registers 54-5Bh: Fan Tachometer Low Limit
- 4.14 Registers 5C-5Eh: Fan Configuration
- 4.15 Registers 5F-61h: Auto Fan Speed Range, PWM Frequency
- 4.16 Registers 62, 63h: Min/Off, Spike Smoothing
- 4.17 Registers 64-66h: Minimum PWM Duty Cycle
- 4.18 Registers 67-69h: Temperature Limit
- 4.19 Registers 6A-6Ch: Absolute Temperature Limit
- 4.20 Registers 6D-6Eh: Zone Hysteresis Registers
- 4.21 Register 6Fh: Test Register
- 4.22 Registers 70-7Fh: Vendor Specific Registers
- 4.23 Undefined Registers
- 5.0 XOR TEST MODE
- 6.0 DIFFERENCES BETWEEN THE LM85BIMQ AND LM85CIMQ
- Revision History
- Physical Dimensions