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Details for TC647EUA by Microchip Technology
Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs
IC PWM FAN SPEED CNTRL 8-MSOP
TC647EUA image

TC647EUA by Microchip Technology

IC PWM FAN SPEED CNTRL 8-MSOP
Features
3.0V to 5.5V Supply Range:
Efficient PWM Fan Drive
Fan Voltage Independent of TC647 Supply Voltage
FanSenseu2122 Technology Fault Detection Circuits Protect Against Fan Failure and Aid System Testing
Shutdown Mode for "Green" Syst
Supports any Fan Voltage
Part Information
TC647EUA image
RoHS Compliant
Description
The TC647 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 VIN furnishes the required control voltage of 1.25V to 2.65V (typical) for 0% to 100% PWM duty cycle. Minimum fan speed is set by a simple resistor divider on the VMIN input. An integrated Start-up Timer ensures reliable motor start- up at turn-on, coming out of shutdown mode or following a transient fault. A logic low applied to VMIN (Pin 3) causes fan shutdown. The TC647 also features Microchip Technology's pro- prietary FanSense™ technology for increasing system reliability. In normal fan operation, a pulse train is present at SENSE (Pin 5). A missing pulse detector monitors this pin during fan operation. A stalled, open or unconnected fan causes the TC647 to trigger its Start-up Timer once. If the fault persists, the FAULT output goes low and the device is latched in its shut- down mode. The TC647 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 TC647 GND CF VIN VMIN FAULT SENSE VDD
Specifications
Motor Type:
PWM
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:
647
Frequency:
30Hz
Input Current:
500µA
Operating Temperature Range:
-40°C to +85°C
Supply Voltage Range:
3V to 5.5V
Alternate Descriptions
MOTOR DRIVER, PWM, 5mA, MSOP-8; Motor Type:PWM; 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; Product Range:- RoHS Compliant: Yes Newark Electronics
PWM Fan Motor Speed Controller 8-Pin MSOP Tube Avnet America
Microchip TC647EUA Fan Controller IC, 5 V, 8-Pin MSOP Allied Electronics & Automation