TC648BEOA
ActivePWM, FAN SPEED CNTRL, SD, 8-SOIC
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TC648BEOA
ActivePWM, FAN SPEED CNTRL, SD, 8-SOIC
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Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | TC648BEOA | TC648B Series |
|---|---|---|
| Applications | - | Fan Controller |
| Function | - | Controller - Speed |
| Interface | - | Parallel |
| Motor Type - AC, DC | - | Brushless DC (BLDC) |
| Mounting Type | - | Surface Mount, Through Hole |
| null | - | |
| Operating Temperature | - | 85 °C |
| Operating Temperature | - | -40 °C |
| Output Configuration | - | Pre-Driver - Low Side |
| Package / Case | - | 8-MSOP, 8-TSSOP, 8-SOIC, 8-DIP |
| Package / Case | - | 0.118 in |
| Package / Case | - | 0.3 - 3 mm |
| Package / Case | - | 3.9 mm |
| Package / Case | - | 0.154 in |
| Package / Case | - | 7.62 mm |
| Supplier Device Package | - | 8-MSOP, 8-SOIC, 8-PDIP |
| Voltage - Supply | - | 5.5 V |
| Voltage - Supply | - | 3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Microchip Direct | TUBE | 1 | $ 1.61 | |
| 25 | $ 1.33 | |||
| 100 | $ 1.20 | |||
| 1000 | $ 1.17 | |||
| 5000 | $ 1.16 | |||
| Newark | Each | 1 | $ 1.67 | |
| 10 | $ 1.53 | |||
| 25 | $ 1.38 | |||
| 50 | $ 1.36 | |||
| 100 | $ 1.33 | |||
TC648B Series
IC MOTOR DRIVER 3V-5.5V 8MSOP
| Part | Applications | Mounting Type | Operating Temperature [Max] | Operating Temperature [Min] | Supplier Device Package | Package / Case | Package / Case [custom] | Package / Case | Function | Motor Type - AC, DC | Interface | Voltage - Supply [Max] | Voltage - Supply [Min] | Output Configuration | Package / Case [y] | Package / Case [x] | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Microchip Technology TC648BEUA713 | Fan Controller | Surface Mount | 85 °C | -40 °C | 8-MSOP | 8-MSOP, 8-TSSOP | 0.118 in | 3 mm | Controller - Speed | Brushless DC (BLDC) | Parallel | 5.5 V | 3 V | Pre-Driver - Low Side | |||
Microchip Technology TC648BEOA713 | Fan Controller | Surface Mount | 85 °C | -40 °C | 8-SOIC | 8-SOIC | Controller - Speed | Brushless DC (BLDC) | Parallel | 5.5 V | 3 V | Pre-Driver - Low Side | 3.9 mm | 0.154 in | |||
Microchip Technology TC648BEOA | |||||||||||||||||
Microchip Technology TC648BEUA | Fan Controller | Surface Mount | 85 °C | -40 °C | 8-MSOP | 8-MSOP, 8-TSSOP | 0.118 in | 3 mm | Controller - Speed | Brushless DC (BLDC) | Parallel | 5.5 V | 3 V | Pre-Driver - Low Side | |||
Microchip Technology TC648BEUA | |||||||||||||||||
Microchip Technology TC648BEUA713 | |||||||||||||||||
Microchip Technology TC648BEPA | Fan Controller | Through Hole | 85 °C | -40 °C | 8-PDIP | 8-DIP | 0.3 in | Controller - Speed | Brushless DC (BLDC) | Parallel | 5.5 V | 3 V | Pre-Driver - Low Side | 7.62 mm |
Description
General part information
TC648B Series
The TC648B is a new version of the existing TC648 fan speed controller. This device is a switch mode fan speed controller, which incorporates a new fan auto restart function. Temperature proportional speed control is accomplished using pulse width modulation. A thermistor (or other voltage output temperature sensor) connected to the VIN input supplies the required control voltage of 1.20V to 2.60V (typical)
for 0% to 100% PWM duty cycle. The auto-shutdown speed is set by a simple resistor divider on the VAS input. An integrated Start-Up Timer ensures reliable fan motor start-up at turn-on, coming out of shutdown mode, auto-shutdown mode, or following a transient fault. A logic low applied to VIN, pin 1, causes fan shutdown. The OTF signal is asserted if the PWM reaches 100% duty cycle, indicating that maximum cooling capability has been reached and a possible thermal runaway condition exists.
Documents
Technical documentation and resources