Sensors, Transducers

MAX6665ASA40+

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Analog Devices Inc./Maxim Integrated

PWM FAN CONTROLLER/DRIVER WITH FACTORY PROGRAMMED TEMPERATURE THRESHOLD

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Sensors, Transducers

MAX6665ASA40+

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Analog Devices Inc./Maxim Integrated

PWM FAN CONTROLLER/DRIVER WITH FACTORY PROGRAMMED TEMPERATURE THRESHOLD

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MAX6665ASA40+

Accuracy	3 °C
Current - Output (Max) [Max]	250 mA
Current - Supply	65 µA
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Output Function	/FanOut, FanOn, /OverTemp, /Warn
Output Type	Open Drain, Push-Pull
Package / Case	Exposed Pad, 8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Selectable Hysteresis	True
Supplier Device Package	8-SOIC-EP
Switching Temperature	40 °C
Trip Temperature Threshold	Hot
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.7 V

MAX6665 Series

Fan Controller/Driver with Factory-Programmed Temperature Thresholds

Part	Trip Temperature Threshold	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Switching Temperature	Accuracy	Voltage - Supply [Max]	Voltage - Supply [Min]	Current - Output (Max) [Max]	Current - Supply	Supplier Device Package	Mounting Type	Output Function	Package / Case	Package / Case [y]	Package / Case [x]
Analog Devices Inc./Maxim Integrated MAX6665ASA45+	Hot	Open Drain Push-Pull	125 °C	-40 C	45 °C	3 °C	5.5 V	2.7 V	250 mA	65 µA	8-SOIC-EP	Surface Mount	/FanOut /OverTemp /Warn FanOn	8-SOIC Exposed Pad	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated MAX6665ASA65+T	Hot	Open Drain Push-Pull	125 °C	-40 C		3 °C	5.5 V	2.7 V	250 mA	65 µA	8-SOIC-EP	Surface Mount	/FanOut /OverTemp /Warn FanOn	8-SOIC Exposed Pad	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated MAX6665ASA50+T	Hot	Open Drain Push-Pull	125 °C	-40 C	122 °F	3 °C	5.5 V	2.7 V	250 mA	65 µA	8-SOIC-EP	Surface Mount	/FanOut /OverTemp /Warn FanOn	8-SOIC Exposed Pad	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated MAX6665ASA70+	Hot	Open Drain Push-Pull	125 °C	-40 C	70 °C	3 °C	5.5 V	2.7 V	250 mA	65 µA	8-SOIC-EP	Surface Mount	/FanOut /OverTemp /Warn FanOn	8-SOIC Exposed Pad	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated MAX6665ASA45+T	Hot	Open Drain Push-Pull	125 °C	-40 C	45 °C	3 °C	5.5 V	2.7 V	250 mA	65 µA	8-SOIC-EP	Surface Mount	/FanOut /OverTemp /Warn FanOn	8-SOIC Exposed Pad	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated MAX6665ASA40+	Hot	Open Drain Push-Pull	125 °C	-40 C	40 °C	3 °C	5.5 V	2.7 V	250 mA	65 µA	8-SOIC-EP	Surface Mount	/FanOut /OverTemp /Warn FanOn	8-SOIC Exposed Pad	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated MAX6665ASA40+T	Hot	Open Drain Push-Pull	125 °C	-40 C	40 °C	3 °C	5.5 V	2.7 V	250 mA	65 µA	8-SOIC-EP	Surface Mount	/FanOut /OverTemp /Warn FanOn	8-SOIC Exposed Pad	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated MAX6665ASA55+	Hot	Open Drain Push-Pull	125 °C	-40 C	55 °C	3 °C	5.5 V	2.7 V	250 mA	65 µA	8-SOIC-EP	Surface Mount	/FanOut /OverTemp /Warn FanOn	8-SOIC Exposed Pad	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated MAX6665ASA60+T	Hot	Open Drain Push-Pull	125 °C	-40 C	60 °C	3 °C	5.5 V	2.7 V	250 mA	65 µA	8-SOIC-EP	Surface Mount	/FanOut /OverTemp /Warn FanOn	8-SOIC Exposed Pad	3.9 mm	0.154 in
Analog Devices Inc./Maxim Integrated MAX6665ASA55+T	Hot	Open Drain Push-Pull	125 °C	-40 C	55 °C	3 °C	5.5 V	2.7 V	250 mA	65 µA	8-SOIC-EP	Surface Mount	/FanOut /OverTemp /Warn FanOn	8-SOIC Exposed Pad	3.9 mm	0.154 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	133	$ 4.65
		6500	$ 4.65
	Tube	1	$ 5.54
		10	$ 3.71
		25	$ 3.24
		100	$ 2.71
		250	$ 2.45
		500	$ 2.30
		1000	$ 2.17
		2500	$ 2.03
		5000	$ 1.98

Description

General part information

MAX6665 Series

The MAX6665 is a fully integrated thermal switch with an internal power transistor for driving a cooling fan rated up to 24V and 250mA. When the MAX6665's temperature rises above a factory-programmed threshold, the active-low FANOUT pin becomes active and powers the fan.The MAX6665 is available with factory-programmed fan activation threshold temperatures from +40°C to +70°C in 5°C increments. Accuracy of the fan activation trip point is ±1°C (typ) and ±3°C (max). The trip point's hysteresis is pin selectable to 1°C, 4°C, or 8°C. Two open-drain logic outputs indicate overtemperature con- ditions: active-low WARN is activated when the temperature is 15°C above the fan activation threshold, and OT is activated when the temperature is 30°C above the threshold. These features can be used to safely power down systems that are overheated.The MAX6665 operates from a +2.7V to +5.5V power supply, and the associated fan can be powered from 4.5V to 24V. It is available in an 8-pin SO package and operates from -40°C to +125°C.ApplicationsCard RacksLaboratory InstrumentsNotebook and Desktop ComputersPC Power SuppliesServers

Documents

Technical documentation and resources