Analog Devices MAX6639FAEE+, 2-channel temperature monitor with fan control, ±1°C remote accuracy, I²C/SMBus output, 16-QSOP package, -40°C to +125°C operation.
| Parameter | Value |
|---|---|
| Output type | I²C/SMBus |
| Sensor type | Internal and External |
| Mounting | Surface Mount |
| Supply voltage | 3V ~ 3.6V |
| Operating temperature | -40°C ~ 125°C |
| Package | Tube |
| Accuracy | -2.5°C Local(Max), ±1°C Remote(Max) |
| Function | Fan Control, Temp Monitor |
| Topology | ADC, PWM Generator, Tach Counter |
| Output fan | Yes |
| Output alarm | Yes |
| Case | 16-SSOP (0.154\", 3.90mm Width) |
| Sensing temperature | 0°C ~ 150°C, External Sensor |
The remote channel's ±1°C max error is the figure that matters for processor or FPGA hot-spot monitoring — a diode-connected transistor placed near the heat source gives a reliable reading.
The part runs on a 3V to 3.6V supply, which aligns with common 3.3V rails in server, telecom, and industrial control boards.
Sourcing is through independent distribution; submit an RFQ for current pricing and availability.
The remote channel accuracy is ±1°C (max), and the local channel accuracy is -2.5°C (max). The remote sensor is the one to rely on for precise thermal monitoring.
Yes, the remote temperature measurement needs an external diode-connected transistor (e.g., a 2N3904) placed near the target heat source. The PWM fan output typically requires an external MOSFET or driver to handle the fan current.
The '+' suffix indicates ROHS3 compliance and lead-free construction. Functionally, the two are identical — the '+' version meets the latest environmental directives for European and global markets.
This part is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — lead times and stock levels are confirmed at quote time.