SLA7073MS |Sanken Electric

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SLA7073MS

Data sheetdownload (PDF:4422.04KB)
Application Note

Description

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.

Application

・Copying machines
・Printers
・Manufacturing equipment

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

Remarks

Package

Package Name:ZIP23(SLA-23)

Package Diagram

Specifications

Excitation Method2 phase/1-2 phase
Supply Voltage10V to 44V
Output Current3.0A
On-Resistance0.18Ω
Input MethodClock in
OCPYES
TSDYES
STP (Simultaneous ON Protection Feature)YES
Open Coil ProtectionYES

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Representative Circuit

Internal Block Diagram

Pin-out Diagrams

Data sheetdownload (PDF:4422.04KB)
Application Note
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