LB1821 - Power Brushless Motor Pre-Driver

Product Overview

Sanyo

Part number	LB1821
Manufacturer	Sanyo
File Size	223.46 KB
Description	Power Brushless Motor Pre-Driver
Datasheet	LB1821 Datasheet
Additional preview pages of the LB1821 datasheet.

Speed Control Circuit This IC implements speed control using the combination of a speed discriminator circuit and a PLL circuit.

The speed discriminator and the PLL circuit output (using a charge pump technique) an error signal once every two FG periods.

Direct PWM drive output Speed discriminator + PLL speed control circuit FG and integrating amplifiers Forward/reverse switching circuit Braking circuit (short braking) Speed lock detection output Full complement of on-chip protection circuits, including lock protection, current limiter, and thermal shutdown protection circuits. SANYO: QIP44MA Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply volta.

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Published: Apr 25, 2005 |