OBSOLETE
SLA7077MS
Package:ZIP23 (with heatsink)
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.
Features
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・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: 2A ・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
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・Copying machines ・Printers ・Manufacturing equipment
Specifications
Excitation Method | 2 phase/4W1-2 phase |
---|---|
Maximum Supply Voltage | 44 V |
Output Current | 2.0 A |
On-Resistance | 0.25 Ω |
Input Method | Clock in |
OCP | YES |
TSD | YES |
STP (Simultaneous ON Protection Feature) | YES |
Open Coil | YES |
Package Weight (Typ.) | g |
Block Diagram
Pin Configuration Definitions
Physical Dimensions
Questions or Comments?
Please feel free to contact us if you cannot find the desired product from the lineup.