MAX6665ASA40+

The MAX6665ASA40+ is a fan controller/driver with factory programmed temperature threshold of 40°C in 8 pin NSOIC package. It is a fully integrated thermal switch with an internal power transistor for driving a cooling fan rated up to 24V and 250mA. The active-low FANOUT pin becomes active and power the fan when temperature of MAX6665 rises above a factory programmed threshold. Accuracy of fan activation trip point is ±1°C (typical) and ±3°C (maximum). The trip point hysteresis is pin selectable to 1°C, 4°C, or 8°C. Two open-drain logic outputs indicate overtemperature conditions. The active-low WARN is activated when temperature is 15°C above fan activation threshold and complementary OT is activated when temperature is 30°C above threshold. These features can be used to safely power down systems that are overheated. The MAX6665 is typically used in PC power supplies, laboratory instruments and card racks.

• Supply voltage range from 2.7V to 5.5V
• Operating temperature range from -40°C to 125°C
• No external components required
• Two overtemperature warning signals
• Low supply current of 65μA
• Active-low FANOUT leakage current of 3μA

Note

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party