MAX6643LBEVKIT：Evaluation Kit for the MAX6643/MAX6644
The MAX6643LB evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that demonstrates the operation of the MAX6643LB fan controller. The MAX6643LB monitors its internal temperature and the junction temperature of an optional external diode-connected transistor. Based on the temperature measurements, the MAX6643LB generates a PWM waveform that drives the gate of an external n-channel power MOSFET, which modulates the cooling fan's power supply, thus providing automatic fan-speed control.
The high- and low-temperature fan-control thresholds are easily programmable by connecting programming pins to ground or supply or leaving them disconnected. The fan-control algorithm is optimized to minimize the audible artifacts of varying fan speeds. Fan failure is detected by monitoring the fan's tachometer output. Also provided is an over-temperature output with pin-programmable threshold.
The EV kit can also be used to evaluate other versions of the MAX6643/MAX6644 fan-controlling ICs.
Key Features- Automatic Fan-Speed Control
- Local and Remote Temperature Sensing
- Programmable Low, High, and Over-Temperature Thresholds
- Minimizes Acoustic Noise
- Fan-Failure Detection
- Configured for 5V to 12V Fans Up to 1A
- Reconfigurable for Up to Two Fans
- Surface-Mount Components
- Fully Assembled and Tested
- Evaluates All Versions of the MAX6643 and MAX6644 (IC Replacement Required)
| Applications/Uses- Desktop Computers
- Networking Equipment
- Servers
- Storage Equipment
- Workstations
|
DataSheet
Ordering Information
| Part Number | Status | Recommended Replacement | Package |
|---|
| MAX6643LBEVKIT | Active | | EVKIT; |
