WT7062
| 【 General Description 】 |
| The WT7062 is a 3-phase full-wave driver for brushless sensorless DC motors. It features 150° square drive, high torque output, and silent drive. Rotation speed can be adjusted through either power supply modulation or pulse-width-modulation (using the PWM digital input pin). Due to the compact packaging and minimum bill-of-material (power transistors incorporated, no Hall sensor, no external tuning), WT7062 is the best suited for low-cost fan application which is requiring high efficiency and low acoustic noise, such as notebook cooling fan. Frequency generator output is also included (FG). The WT7062 driver includes a lock-up protection mode, which turns-off the output current when the motor is under lock condition, and an automatic recovery that enables the fan to release when the lock condition is removed. Thermal-shutdown protection is also included. They are available in a compact thermally-enhanced MSOP-10 & DFN-10 package. |
| 【 Features 】 | |
| ● | Position sensorless BLDC drivers (no Hall sensor required). |
| ● | 150° square drive, for high efficiency and low acoustic noise. |
| ● | Support 2.0V to 5.5V power supplies. |
| ● | Speed control through by PAM or PWM. |
| ● | Built-in frequency generator (FG output signal). |
| ● | Built-in lockup protection and automatic recovery circuit (external capacitors not necessary). |
| ● | Built-in thermal shutdown protection. |
| ● | MSOP-10 & DFN-10 package. |
| ● | No external tuning required. |
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