| part number | TC649 |
| manufacturer | MICROCHIP |
| lead free | ??? |
| prefix | U |
| Description | TC649 |
| octopart part number | |
| package | |
| RoHS | ??? |
| pin 2 description | positive terminal for PWM ramp generator timing capacitor; 1 µF for 30 Hz PWM |
| pin 3 description | auto-shutdown voltage; auto-shutdown occurs when VIN <= VAS |
| pin 4 description | ground |
| pin 5 description | fan rotation pulses; absense of pulses indicates a fault |
| pin 7 description | active high complimentary output that drives the fan motor through an NPN transistor or N-channel MOSFET |
| pin 8 description | power supply |
| supply voltage | 6V |
| pin 6 description | goes low to indicate a fault condition |
| pin 6 activelow | True |
| pin 1 description | temperature sensor; voltage range of 1.25V to 2.65V (typical) |
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