PTC PT12477
The PT12477 is a monolith integrated motor driver designed for printers, scanners, and home or office automated equipment. The dual H-bridge drivers are consisting by all of N-channel MOSFETs, and designed to drive a 4-wires bipolar stepper motor. The output driving current of the PT12477 allows up to 1.6 Amps (mounted on dual layer PCB with proper heatsinking, VM=24V, TA=25°C).DESCRIPTION
To simplified control interface, the STEP and DIR pins allows easy communicates with micro controller, Three Mode Select pins allow for configuration the micro steps from full-step divides to 1/32 micro-step. 3 kind of winding current decay modes are configurable to keeps motor not missing step and low current ripple. A low-power sleep mode is provided which shuts down internal circuitry to achieve very-low quiescent current draw. This sleep mode can be sets by SLEPN pin. The PT12477 is available in 28-pins HTSSOP or 28pins QFN package, both packages with thermal pad.APPLICATIONS
● Automatic teller machines● Video security cameras
● Printers
● Scanners
● Office automation machines
● Amusement machines
● Factory automation
● Robotics BLOCK DIAGRAM 3V3REF VREFA VREFB MS0 MS1 MS2 STEP DIR DECAY EN RSTN SLEPN HON FALTN
FEATURES
● Automotive AEC-Q100 Grade 1 (-40℃~+125℃) Qualified.● 7.4-V to 45-V supply voltage range
● 1.6-A maximum driving current at VM=24V (with additional...