Product Description
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.
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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
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