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LB1922 Datasheet - Sanyo

LB1922_SanyoSemiconDevice.pdf

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Datasheet Details

Part number:

LB1922

Manufacturer:

Sanyo

File Size:

123.28 KB

Description:

Three-phase brushless motor driver.

LB1922, Three-Phase Brushless Motor Driver

and Notes on External Components 1.

Speed control circuit Speed control in this IC is implemented with the combination of a speed discriminator circuit and a PLL circuit.

The speed discriminator circuit outputs an error output once every two FG periods using a charge pump technique.

The PLL circuit

Ordering number : EN5679 Monolithic Digital IC LB1922 Three-Phase Brushless Motor Driver for Office Automation Applications Overview The LB1922 is a single-chip drive circuit that provides the direct PWM drive output appropriate for the power brushless motors used in office automation equipment.

It provides a variety of peripheral circuits on chip, including a speed control circuit and an FG amplifier.

It is optimal in systems that use a 12-V power supply.

Package Dimensions unit: mm 3147A-

LB1922 Features

* D6 must be connected to GND2. All other external components must be connected to GND1. A single ground point must be taken for

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