Ordering number : EN5686 Monolithic Digital IC LB1821M Power Brushless Motor Pre-Driver IC for OA Equipment Overview The LB1821M is a pre-driver IC that supports direct PWM drive and is appropriate for the power brushless motors used in office automation equipment.
A motor drive circuit with the desired output capability (voltage and current characteristics) can be constructed by attaching a driver array at the IC output.
The LB1821M includes on chip a speed control circuit that allows the motor speed to be varied using an external clock.
Package Dimensions unit: mm 3148-QFP44MA [LB1821M] Features • • • • • • • Direct PWM drive output Speed discriminator + PLL speed control circuit FG a...

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