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LB1939T - 2 Channel H Bridge Constant Voltage/ Constant Current Driver IC

Features

  • low voltage operation, a low saturation voltage, and low power consumption. It supports constant voltage and constant current drive, can control two iris motors, and is optimal for shutter, iris, and AF drive in 3 V battery operated still digital cameras and other battery operated equipment. Package Dimensions unit: mm 3246-TSSOP20 [LB1939T] 20 11 0.5 4.4 6.4 0.08 (1.0) 1.2max 0.15 6.5 Features.
  • Low-voltage drive.
  • Dual power supply operation: VS = 1.6 to 7.5 V, VDD = 1.9 to 6.

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Full PDF Text Transcription

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www.DataSheet.co.kr Ordering number : ENN6194 Monolithic Digital IC LB1939T 2 Channel H Bridge Constant Voltage/ Constant Current Driver IC Overview The LB1939T is a two-phase excitation bipolar stepping motor driver that features low voltage operation, a low saturation voltage, and low power consumption. It supports constant voltage and constant current drive, can control two iris motors, and is optimal for shutter, iris, and AF drive in 3 V battery operated still digital cameras and other battery operated equipment. Package Dimensions unit: mm 3246-TSSOP20 [LB1939T] 20 11 0.5 4.4 6.4 0.08 (1.0) 1.2max 0.15 6.5 Features • Low-voltage drive — Dual power supply operation: VS = 1.6 to 7.5 V, VDD = 1.9 to 6.5 V — Single power supply operation: VS = VDD = 1.9 to 7.
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