Description
The MCP9902/3/4 is a high-accuracy, low-cost, System Management Bus (SMBus) temperature sensor. The MCP9902/3/4 monitors up to four temperature channels. Advanced features such as Resistance Error Correction (REC), Beta Compensation and automatic diode-type detection combine to provide a robust solution for complex environmental monitoring applications.

FEATUREs
• Up to Three External Temperature Monitors
   - ±1°C maximum accuracy
      MCP9902: -40°C to +105°C
      MCP9903/4: -40°C to +125°C
   - ±2°C maximum accuracy
      (+65°C < TDIODE < +125°C)
   - 0.125°C resolution
• Internal Temperature Monitor
   - ±1°C accuracy
   - (-40°C to +65°C)
   - 0.125°C resolution
• Supports up to 2.2 nF diode filter capacitor
• Up to 400 kHz clock rate
   - Maskable with register control
• Programmable SMBus address
• Operating voltage: 3.0 to 3.6 (V)
• ESD protection: 2 kV HBM
• Temperature Range: -40°C to +125°C
• Available in a small 8-Lead 2x2 mm WDFN and
   10-lead 3x3 mm VDFN packages

Typical Applications
• General Purpose Temperature Sensing
• Industrial Freezers and Refrigerators
• Food Processing
• Base Stations
• Remote Radio Unit