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LB11847 - PWM Current Control Type Stepping Motor Driver

Description

Sets the OFF time for FAST mode and SLOW mode in MIX DECAY Setting input range: 4V to 1.5V Output set current reference supply pins Setting voltage range: 0V to 3V Output OFF time setting pins for switching operation CR1 CR2 E1 E2 DECAY1 DECAY2 Pins for controlling the set current with sensing res

Features

  • PWM current control (fixed OFF time) Load current digital selector (1-2, W1-2, 2W1-2, 4W1-2 phase exciter drive possible) Selectable current decay pattern (SLOW DECAY, FAST DECAY, MIX DECAY) Simultaneous ON prevention function (feedthrough current prevention) Noise canceler Built-in thermal shutdown circuit Built-in logic low-voltage OFF circuit Any and all SANYO products described or contained herein do not have specificatio.

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Datasheet preview – LB11847

Datasheet Details

Part number LB11847
Manufacturer Sanyo
File Size 112.65 KB
Description PWM Current Control Type Stepping Motor Driver
Datasheet download datasheet LB11847 Datasheet
Additional preview pages of the LB11847 datasheet.

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Full PDF Text Transcription

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Ordering number : EN*6183 LB11847 Monolithic Digital IC LB11847 PWM Current Control Type Stepping Motor Driver Preliminary Overview The LB11847 is a driver IC for stepping motors with PWM current control bipolar drive (fixed OFF time). A special feature of this IC is that VREF voltage is constant while the current can be set in 15 steps, allowing drive of motors ranging from 12 phase exciter types to 4W 1-2 phase exciter types. The current decay pattern can also be selected (SLOW DECAY, FAST DECAY, MIX DECAY) to increase the decay of regenerative current at chopping OFF, thereby improving response characteristics. This is especially useful for carriage and paper feed stepping motors in printers and similar applications where highprecision control and low vibrations are required.
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