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Details for TC648EUA by Microchip Technology
TC648
TC648EUA
Buy Directly from Microchip Technology Inc (6750 in stock) $1.3400
PWM FAN SPEED CONTROLLER WITH FANSENSE
TC648EUA image

TC648EUA by Microchip Technology

PWM FAN SPEED CONTROLLER WITH FANSENSE
Features
Temperature Proportional
Fan Speed for Acoustic Control and Longer Fan Life
Efficient PWM Fan Drive
3.0V to 5.5V Supply Range
Fan Voltage Independent of TC648 Supply Voltage - Supports Any Fan Voltage!
Over-Temperature Fault Detection
Automatic Shutdown Mode for "Green" Systems
Supports Low Cost NTC/PTC Thermistors
Description
The TC648 is a switch mode fan speed controller for use with brushless DC motors. Temperature proportional speed control is accomplished using pulse width modulation(PWM). A thermistor (or other voltage output temperature sensor) connected to the VIN input furnishes the required control voltage of 1.25V to 2.65V(typical) for 0% to 100% PWM duty cycle. The TC648 can be configured to operate in either Auto-Shutdown or Minimum Speed mode. In Auto-Shutdown mode,fan operation is automatically suspended when measured temperature (VIN) is lower than a user-programmed minimum setting (VAS). The fan is automatically restarted and proportional speed control restored when VIN exceeds VAS (plus hysteresis). Operation in Minimum Speed mode is similar to Auto-Shutdown mode, except the fan is operated at a user-programmed minimum setting when measured temperature is low. An integrated Start-Up Timer ensures reliable motor start-up at turn-on, or when coming out of Shutdown mode. The over-temperature fault (OTF) is asserted when the PWM reaches 100% duty cycle, indicating a possible thermal runaway situation. The TC648 is packaged in a space-saving 8-pin plastic DIP, MSOP or SOIC package and is available in the industrial temperature range.
Specifications
Device Description:
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):
1000
External Temp Input:
True
PWMFreq:
Low
Auto Shutdown:
True
Over Temp Alert:
True
Temperature Range:
-40C to +85C
Alternate Descriptions
MOTOR DRIVER, DC BRUSHLESS, 5mA, MSOP-8; Motor Type:DC Brushless; No. of Outputs:1Outputs; Output Current:5mA; Output Voltage:4.4V; Driver Case Style:MSOP; No. of Pins:8Pins; Supply Voltage Min:3V; Supply Voltage Max:5.5V RoHS Compliant: Yes Newark Electronics
PWM Fan Motor Speed Controller 8-Pin MSOP Tube Avnet America
Driver; PWM controller; Channels:1; MSOP8 Transfer Multisort Elektronik
PWM FAN SPEED CONTROLLER WITH FANSENSE Microchip Technology Inc
Microchip TC648EUA Fan Controller IC, 5 V, 8-Pin MSOP Allied Electronics & Automation
Details for TC648EUA by Microchip Technology
TC648
TC648EUA
Buy Directly from Microchip Technology Inc (6750 in stock) $1.3400
IC PWM FAN SPEED CNTRL 8-MSOP
TC648EUA image

TC648EUA by Microchip Technology

IC PWM FAN SPEED CNTRL 8-MSOP
Features
3.0V to 5.5V Supply Range:
Automatic Shutdown Mode for u201cGreenu201d Syst
Efficient PWM Fan Drive
Fan Voltage Independent of TC648 Supply Voltage
Over-temperature Fault Detection
Supports any Fan Voltage
Part Information
TC648EUA image
RoHS Compliant
Description
The TC648 is a switch mode, fan speed controller for use with brushless DC fans. Temperature proportional speed control is accomplished using pulse width mod- ulation (PWM). A thermistor (or other voltage output temperature sensor) connected to the VIN input furnishes the required control voltage of 1.25V to 2.65V (typical) for 0% to 100% PWM duty cycle. The TC648 can be configured to operate in either auto-shutdown or minimum speed mode. In auto-shutdown mode, fan operation is automatically suspended when measured temperature (VIN) is lower than a user programmed minimum setting (VAS). The fan is automatically restarted, and proportional speed control restored, when VIN exceeds VAS (plus hysteresis). Operation in minimum speed mode is similar to auto-shutdown mode, with the exception that the fan is operated at a user programmed minimum setting when the mea- sured temperature is low. An integrated Start-up Timer ensures reliable motor start-up at turn-on, and when coming out of shutdown or auto-shutdown mode. The over-temperature fault output (OTF) is asserted when the PWM reaches 100% duty cycle, indicating a possible thermal runaway situation. The TC648 is available in the 8-pin plastic DIP, SOIC and MSOP packages and is available in the industrial and extended commercial temperature ranges. 1 8 2 7 3 6 4 5 TC648 GND CF VIN VAS OTF NC VDD
Specifications
Motor Type:
DC Brushless
No. of Outputs:
1Outputs
Output Current:
5mA
Output Voltage:
4.4V
Driver Case Style:
MSOP
No. of Pins:
8Pins
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:
648
Frequency:
30Hz
Input Current:
500µA
Operating Temperature Range:
-40°C to +85°C
Supply Voltage Range:
3V to 5.5V
Alternate Descriptions
MOTOR DRIVER, DC BRUSHLESS, 5mA, MSOP-8; Motor Type:DC Brushless; No. of Outputs:1Outputs; Output Current:5mA; Output Voltage:4.4V; Driver Case Style:MSOP; No. of Pins:8Pins; Supply Voltage Min:3V; Supply Voltage Max:5.5V RoHS Compliant: Yes Newark Electronics
PWM Fan Motor Speed Controller 8-Pin MSOP Tube Avnet America
Driver; PWM controller; Channels:1; MSOP8 Transfer Multisort Elektronik
PWM FAN SPEED CONTROLLER WITH FANSENSE Microchip Technology Inc
Microchip TC648EUA Fan Controller IC, 5 V, 8-Pin MSOP Allied Electronics & Automation