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LB1924 - Power Brushless Motor Driver IC

Description

1.

Speed control circuit This IC uses a speed discriminator circuit and a PLL circuit in combination for speed control.

The speed control circuit outputs an error signal once every two FG periods (a charge pump technique).

Features

  • he printed circuit board wiring, floating capacitances, and other aspects are accounted for appropriately. (Notes on printed circuit board lines) Floating capacitances on the printed circuit board can easily affect crystal oscillator circuits, since these are highspeed circuits. Th.

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Full PDF Text Transcription

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Ordering number : ENN5687B Monolithic Digital IC LB1924 Power Brushless Motor Driver IC for Office Automation Equipment Overview The LB1924 is a direct PWM drive output driver IC appropriate for the power brushless motors used in office automation equipment. It includes a speed control circuit, an FG amplifier, and other peripheral circuits and allows a drive circuit to be implemented with a single IC. It allows the number of external components to be reduced by including a lock protection circuit, a kickback absorption diode for the lower output side, and other components on chip. Package Dimension unit: mm 3147B-DIP28H [LB1924] 28 15 R1.7 12.7 11.2 8.4 Functions • • • • • • • • • Breakdown voltage: 30 V, output current: 3.
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