LB11850VA-TLM-E

1-Phase Full Wave Fan Motor Driver 24Pin SSOP T/R

The LB11850VA is a single-phase bipolar fan motor driver with speed control function that works with a speed feedback signal. A highly efficient, quiet and low power consumption motor driver circuit, with a high speed accuracy and large variable speed can be implemented by adding a small number of external components. This pre-driver is optimal for driving large scale fan motors with large air volume and large current such as those used in servers and consumer products.

Features

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Pre-driver for single-phase full-wave drive

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On-chip speed control circuit

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External PWM input or analog voltage input enabling variable speed control

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On-chip soft start circuit

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Reactive current cut circuit incorporated

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Constraint protection and automatic reset functions incorporated

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FG speed detection, RD lock detection output

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Constant-voltage output pin for hall bias