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LB1945D - Stepping Motor Driver

Description

GND VCC IA2 IA1 NC No.7633-3/9 LB1945D Block Diagram ENABLE2 PHASE2 SUBGND VREF2 VCC IB1 IB2 www.DataSheet4U.com S-GND Control logic circuit Current selection circuit VBB2 Blanking time OUTB E2 OUTB D-GND VBB1 Thermal shutdown circuit OSC CR D-GND OUTA E1 OUTA Blanking time Control

Features

  • PWM current control (external clock).
  • Digital load current selection function (supports 1-2, W1-2, and 2-phase excitation).
  • Built-in high and low side diodes.
  • Simultaneous on state prevention function (through-current prevention).
  • Built-in thermal shutdown circuit.
  • Noise canceling function Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Motor supply voltage Output peak current Output continuous current Logic system supply vol.

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Full PDF Text Transcription

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Ordering number : EN7633A www.DataSheet4U.com Monolithic Digital IC LB1945D Overview PWM Current Control Stepping Motor Driver The LB1945D is a PWM current control stepping motor driver that uses a bipolar drive technique. It is optimal for use with the carriage and paper feed stepping motors used in printers.
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