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LB1976 - DC Fan Motor Driver

Description

Direct PWM Drive This IC (LB1976) employs the direct PWM drive principle.

Motor rotation speed is controlled by varying the output duty cycle according to an analog voltage input (VCTL).

This eliminates the need to alter the motor power supply voltage.

Features

  • Withstand voltage 60 V, output current 2.5 A Direct PWM drive output 3 built-in output top-side diodes Built-in current limiter Built-in FG output circuit R1.7 12.7 11.2 8.4 1 20.0 26.75 14 (1.81) 1.78 0.6 1.0 4.0 4.0 SANYO: DIP28H Any and all SANYO products described or contained herein do not have specifications that can handle.

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Full PDF Text Transcription

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Ordering number : ENN6088A Monolithic Digital IC LB1976 DC Fan Motor Driver Overview The LB1976 is a three-phase brushless motor driver IC suited for use in direct PWM driving of DC fan motors for air conditioners, water heaters, and other similar equipment. Since a shunt regulator circuit is built in, single power supply operation sharing the same power supply for the motor is supported. Package Dimensions unit: mm 3147C-DIP28H [LB1976] 28 15 Features • • • • • Withstand voltage 60 V, output current 2.5 A Direct PWM drive output 3 built-in output top-side diodes Built-in current limiter Built-in FG output circuit R1.7 12.7 11.2 8.4 1 20.0 26.75 14 (1.81) 1.78 0.6 1.0 4.0 4.
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