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Product Detailed Parameters
- Description：IC MOTOR DRIVER SMD
- Series：-
- Mfr：Sanken Electric USA Inc.
- Package：Tube
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：-
- Output Configuration：-
- Interface：-
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：-
- Voltage - Load：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The SLA7077MWB is a two-phase unipolar stepper motor driver from the SLA707xM series, manufactured by Sanken Electric. It integrates low-power CMOS logic with high-current, high-voltage power FET outputs to provide complete control and drive for stepper motors within a single Power Multi-Chip Module (PMCM). The device features internal fixed off-time and pulse-width modulation (PWM) control of output current, eliminating the need for complex microprocessor sequencing or high-frequency control lines. It supports externally selectable full-, half-, quarter-, eighth-, and sixteenth-step operation modes.
Feature Summary
- Integrates CMOS logic and power MOSFETs for complete stepper motor control without external sequencers
- Supports multiple step resolutions including full, half, quarter, eighth, and sixteenth steps
- Includes internal PWM current control and fixed off-time management
- Features built-in clamp diodes for inductive transient protection
Applications
- Personal Printer Copiers (PPC)
- Printer mechanisms
- Office Automation (OA) equipment
Procurement Notes
Verify the specific suffix 'W' against official Sanken Electric documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with system voltage requirements, as the load supply voltage range extends up to 44V. Confirm that the required step resolution settings align with the externally selectable options provided by this specific variant.
Selection Notes
Select this component when designing systems requiring integrated control and power stages for unipolar stepper motors. It is suitable for applications where minimizing external component count and simplifying interface logic is prioritized. Consider the maximum sink current capabilities and thermal dissipation requirements associated with the PMCM package for the intended operating environment.
Part Context
This part belongs to the SLA707xM series, which combines CMOS logic with high-current power FETs. The series is designed to simplify stepper motor driving by providing sequencing, direction control, and PWM operation in a single module. It targets applications needing reliable motor control without complex microprocessor overhead.
FAQ
What step resolutions are supported by the SLA7077MWB?
The SLA7077MWB supports externally selectable full-step, half-step, quarter-step, eighth-step, and sixteenth-step operations.
Does the SLA7077MWB require an external sequencer?
No, the device integrates internal sequencing logic, direction control, and PWM operation, eliminating the need for external phase-sequence tables or complex interfaces.
