STK6712BMK4 Overview
EN4867A Thick Film Hybrid IC STK6712BMK4 Unipolar Fixed-Current Chopper-Type 4-Phase Stepping Motor Driver Overview The STK6712BMK4 is a unipolar fixed-current choppertype 4-phase stepping motor driver hybrid IC (HIC) which uses a MOSFET power device. The excitation sequence signal is active low. mm 4129 [STK6712BMK4] Applications Serial printer, line printer, and laser beam printer (LBP) paper feed and carriage...
STK6712BMK4 Key Features
- This IC has the features of the STK6712BMK3, plus a simultaneous input prevention circuit that protects the IC from any
- Self-excitation design means chopping frequency is determined by motor L and R. Supports chopping at 20 kHz or higher
- Very low number of external ponents required
- Wide operating supply voltage range (V CC1 = 18 to 42V)
- Excitation sequence signal is active low, and is TTL level for direct interfacing to the microputer and gate array
- The unipolar design enables use as a driver for hybrid, PW, or VR type stepping motors
- Supports W1-2 phase operation, with a dual Vref pin