| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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60 pcs
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60 pcs | On Request | 1 | On Request | On Request | 07+15 | On Request | On Request |
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The MAX6644LBAAEE+ is an integrated circuit from Analog Devices that provides automatic fan speed control. It is designed to monitor temperature, both internally and externally, and adjust the fan's speed accordingly to ensure optimal cooling while minimizing acoustic noise. This device operates within a voltage range of 3V to 5.5V and consumes a typical supply current of 500μA.
The MAX6644LBAAEE+ generates a PWM waveform to drive an external power transistor, which modulates the fan's power supply. It features multiple, 1.6% output duty-cycle steps for low audibility of fan-speed changes and a 32Hz PWM output. The device includes an overtemperature output (OT) for warning or system shutdown and a FANFAIL output to indicate a failed fan. It offers pin-selectable or factory-selectable low and high-temperature fan thresholds.
This IC is suitable for applications in networking equipment, storage equipment, servers, desktop computers, and workstations. It is available in a compact 16-QSOP package, making it ideal for space-constrained designs. The operating temperature range is -40°C to +125°C, with temperature measurement accuracy of ±3.5°C for local sensing and ±3°C for remote sensing.
The MAX6644LBAAEE+ supports internal and external temperature sensing, with sensing temperatures ranging from -40°C to 125°C for external sensors. Its topology includes ADC, PWM generator, and Tach counter functionalities. The device also features an output alarm and an output fan control.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.06 | $2.06 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating temperature range is -40°C to +125°C.
The MAX6644LBAAEE+ operates from a 3V to 5.5V supply voltage.
It supports both internal and external temperature sensors.
The accuracy is ±3.5°C for local sensing and ±3°C for remote sensing.
The output type is PWM.
Yes, it includes an overtemperature output.
It is supplied in a 16-QSOP package.