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Details for TC665EUN by Microchip Technology
TC665
TC665EUN
Buy Directly from Microchip Technology Inc (2610 in stock) $1.8300
Single, SMBusTM PWM Fan Speed Controller With Fan Fault & Over-Temperature Detec
TC665EUN image

TC665EUN by Microchip Technology

Single, SMBusTM PWM Fan Speed Controller With Fan Fault & Over-Temperature Detec
Features
Temperature Proportional Fan Speed for Acoustic Control and Longer Fan Life
FanSenseu2122 Protects Against Fan FailureProvides RPM Data
Over-Temperature Detection
2-wire SMBus Compatible Interface
3.0V to 5.5V Supply Range
Fan Voltage Independent of Supply Voltage
Supports Any Fan Voltage
Supports Low Cost NTC/PTC Thermistors
Description
The TC665 is a single PWM mode fan speed controller with FanSense™ TM technology for use with brush-less DC motors. The device allows temperature proportional speed control and therefore accomplishes lower acoustic fan noise and longer fan life. The TC665 reads the voltage provided by an external ther-mistor (or voltage output temperature sensor) and adjust sa 30% to 100% PWM duty cycle output to the fan with respect to the input temperature voltage. The PWM duty cycle can also be programmed via SMBus to allow fan speed control without the need of an external thermistor.

In normal fan operation, pulse trains are present at the SENSE pin. These pulses are used to calculate the fan RPM. The fan RPM data is used to detect a worn out, stalled, open or unconnected fan. An RPM level below the user-programmable threshold causes the TC665 to assert a logic low alert signal (FAULT). Thedefault value is 500RPM. The TC665 consumes only 0.3mA during operation and can also enter a low-power shutdown mode by setting the appropriate bit in the configuration register.

Specifications
Device Description:
Programmable Single Fan Manager
Typical Accuracy (°C):
Depends on external thermistor
Max Accuracy @ 25°C (°C):
Depends on external thermistor
Temp. Range Max. (°C):
+85
Temp. Range. Min. (°C):
-40
Vcc Range Max. (V):
+5.5
Vcc Range Min. (V):
+3.0
Max. Supply Current (µA):
320
External Temp Input:
True
SM Bus:
True
PWMFreq:
Low
Fan Sense:
True
Predictive Fan Fault:
True
Over Temp Alert:
True
Temperature Range:
-40C to +85C
Alternate Descriptions
Motor Type:PWM; No. of Outputs:1Outputs; Output Current:5mA; Output Voltage:4.4V; Driver Case Style:MSOP; No. of Pins:10Pins; Supply Voltage Min:3V; Supply Voltage Max:5.5V; Operating Temperature Min:-40°C; Product Range:- RoHS Compliant: Yes Newark Electronics
PWM Fan Motor Speed Controller 10-Pin MSOP Tube Avnet America
Single SMBusTM PWM Fan Speed Controller With Fan Fault & Over-Temperature Detec Microchip Technology Inc
Microchip TC665EUN Fan Controller IC, 10-Pin MSOP Allied Electronics & Automation
TC664 Series 5.5 V PWM Fan Speed Controller w/ Fault Detection - MSOP-10 Future Electronics
Similar Part
Details for TC665EUN by Microchip Technology
TC665
TC665EUN
Buy Directly from Microchip Technology Inc (2610 in stock) $1.8300
IC PWM FAN SPEED CNTRL 10-MSOP
TC665EUN image

TC665EUN by Microchip Technology

IC PWM FAN SPEED CNTRL 10-MSOP
Features
2-Wire SMBusu2122-Compatible Interface
Efficient PWM Fan Drive
FanSenseu2122 Protects against Fan Failure and Eliminates the Need for 3-wire Fans
Over Temperature Detection (TC665)
Provides RPM Data
Software Controlled Shutdown Mode for "Green" Systems
Supports Any Fan Voltage
Supports Low Cost NTC/PTC T
Part Information
TC665EUN image
RoHS Compliant
Description
The TC664/TC665 devices are PWM mode fan speed controllers with FanSense technology for use with brushless DC fans. These devices implement temper- ature proportional fan speed control which lowers acoustic fan noise and increases fan life. The voltage at VIN (Pin 1) represents temperature and is typically provided by an external thermistor or voltage output temperature sensor. The PWM output (VOUT) is adjusted between 30% and 100%, based on the volt- age at VIN. The PWM duty cycle can also be pro- grammed via SMBus to allow fan speed control without the need for an external thermistor. If VIN is not con- nected, the TC664/TC665 will start driving the fan at a default duty cycle of 39.33%. See Section 4.3, "Fan Startup", for more details). In normal fan operation, a pulse train is present at the SENSE pin (Pin 8). The TC664/TC665 use these pulses to calculate the fan revolutions per minute (RPM). The fan RPM data is used to detect a worn out, stalled, open or unconnected fan. An RPM level below the user-programmable threshold causes the TC664/ TC665 to assert a logic low alert signal (FAULT). The default threshold value is 500 RPM. Also, if this condi- tion occurs, FF (bit 0<0>) in the Status Register will also be set to a ‘1’. An over-temperature condition is indicated when the voltage at VIN exceeds 2.6 V (typical). The TC664/ TC665 devices indicate this by setting OTF(bit 5) in the Status Register to a '1'. The TC665 device also pulls the FAULT line low during an over-temperature condition. The TC664/TC665 devices are available in a 10-Pin MSOP package and consume 150 µA during opera- tion. The devices can also enter a low-power shutdown mode (5 µA, typ.) by setting the appropriate bit in the Configuration Register. The operating temperature range for these devices is -40°C to +85ºC. 10-Pin MSOP
Specifications
Motor Type:
PWM
No. of Outputs:
1Outputs
Output Current:
5mA
Output Voltage:
4.4V
Driver Case Style:
MSOP
No. of Pins:
10Pins
Supply Voltage Min:
3V
Supply Voltage Max:
5.5V
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (15-Jan-2018)
Base Number:
665
Frequency:
30Hz
Input Current:
150µA
Operating Temperature Range:
-40°C to +85°C
Supply Voltage Range:
3V to 5.5V
Alternate Descriptions
Motor Type:PWM; No. of Outputs:1Outputs; Output Current:5mA; Output Voltage:4.4V; Driver Case Style:MSOP; No. of Pins:10Pins; Supply Voltage Min:3V; Supply Voltage Max:5.5V; Operating Temperature Min:-40°C; Product Range:- RoHS Compliant: Yes Newark Electronics
PWM Fan Motor Speed Controller 10-Pin MSOP Tube Avnet America
Single SMBusTM PWM Fan Speed Controller With Fan Fault & Over-Temperature Detec Microchip Technology Inc
Microchip TC665EUN Fan Controller IC, 10-Pin MSOP Allied Electronics & Automation
TC664 Series 5.5 V PWM Fan Speed Controller w/ Fault Detection - MSOP-10 Future Electronics