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LB11946

Features: • PWM current control (with a fixed off time)• Logic input serial-parallel converter (allows 1-2, W1-2, 2W1-2, and 4W1-2 phase excitation drive)• Current attenuation switching function (with slow decay, fast decay, and mixed decay modes)• Built-in upper and lower ...

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SeekIC No. : 004390973 Detail

LB11946: Features: • PWM current control (with a fixed off time)• Logic input serial-parallel converter (allows 1-2, W1-2, 2W1-2, and 4W1-2 phase excitation drive)• Current attenuation swit...

LB11946 Data Sheet

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Part Number:
LB11946
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• PWM current control (with a fixed off time)
• Logic input serial-parallel converter (allows 1-2, W1-2, 2W1-2, and 4W1-2 phase excitation drive)
• Current attenuation switching function (with slow decay, fast decay, and mixed decay modes)
• Built-in upper and lower side diodes
• Simultaneous on state prevention function (through current prevention)
• Noise canceller function
• Thermal shutdown circuit
• Shutoff on low logic system voltage circuit
• Low-power mode control pin




Pinout

Connection Diagram




Specifications

Parameter Symbol Conditions Ratings Unit
Motor supply voltage VBB 50 V
Peak output current IO peak tw 20 S 1.2 A
Continuous output current IO max 1.0 A
Logic system supply voltage VCC 7.0 V
Logic system supply voltage VIN 0.3 to VCC V
Emitter output voltage VE 1.0 V
VE VCC=5 V specifications 0.5 V
Allowable power dissipation (IC internal) Pdmax Ta=25°C, independent IC 3.0 W
Operating temperature Topr -20 to +85
Storage temperature Tstg -55 to +150





Description

The LB11946 is a stepping motor driver IC that implements PWM current control bipolar drive with a fixed off time. This IC features 15 current setting levels using a fixed VREF voltage and support for microstepping drive from 1-2 phase excitation drive to 4W1-2 phase excitation drive. This device is optimal for driving stepping motors such as those used for carriage drive and paper feed in printers.






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