LB1929 - Sanyo

LB1929 Three-Phase Brushless Motor Driver

Pin No. 28 1 2 3 Symbol OUT1 OUT2 OUT3 GND2 Pin Description Equivalent circuit Motor drive output pin Connect the Schottky diode between the output – VCC. VCC 300Ω VM 5 Output GND pin 1 Power and output current detection pins of the output. Connect a low resistance (Rf) between this pin and VCC. The output current is limited to the current value set w.

Features

on-chip peripheral circuits such as a speed control circuit and an FG amplifier, and can implement a drive circuit in a single chip. Package Dimensions unit: mm 3147B-DIP28H [LB1929] 28 15 R1.7 Functions and Features
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• Three-phase bipolar drive (30 V, 3.5 A) Direct PWM drive Built-in low side output kickback absorption diode Control technique that combines a speed discriminator with PLL speed control
• Speed lock detection output
• Built-in forward/reverse switching circuit
• Full complement of built-in protection circuits, including current limiter, thermal protection circuit, and mo.