OBSOLETE

[ Alternative : SLA7078MPRT]

SLA7078MS

Package Image

Package:ZIP23 (with heatsink)

Packing Specification

2-phase stepper motor unipolar IC, self excitation PWM current control with fixed off time.
The built-in current sense resistor allows reduction in external components.
The series also has a built-in protection function which operate during abnormal operation (motor coil opens/shorts) and thermal shutdown protection as well.
Lineup with various rated currents and sequencers are also available.

Design Support

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Features

    ・Power supply voltages VBB:
       46V(max), normal operating range: 10V to 44V
    ・Logic supply voltages VDD: 3.0V to 5.5V
    ・Maximum output current Io: 3A
    ・Supports clock-input-method micro-step drive
       (built-in sequencer)
    ・Built-in current sense resistor
    ・PWM current control with fixed OFF time
    ・Synchronous PWM chopping function prevents motor noise
       in Hold mode
    ・Sleep mode for reducing the IC input current in stand-by
       state
    ・Built-in protection circuitry against motor coil opens/shorts
       and thermal shutdown protection

Application

    ・Copying machines
    ・Printers
    ・Manufacturing equipment

Specifications

Excitation Method 2 phase/4W1-2 phase
Maximum Supply Voltage 44 V
Output Current 3.0 A
On-Resistance 0.18 Ω
Input Method Clock in
OCP YES
TSD YES
STP (Simultaneous ON Protection Feature) YES
Open Coil YES
Package Weight (Typ.) g

Block Diagram

Block Diagram

Pin Configuration Definitions

Pin Configuration Definitions

Physical Dimensions

Physical Dimensions

Questions or Comments?

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