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Product Detailed Parameters
- Description：IC MTR DRV UNIPOLAR 3-5.5V 23ZIP
- Series：-
- Mfr：Sanken Electric USA Inc.
- Package：Tube
- Motor Type - Stepper：Unipolar
- Motor Type - AC, DC：-
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Low Side (4)
- Interface：Parallel
- Technology：Power MOSFET
- Step Resolution：1, 1/2
- Applications：General Purpose
- Current - Output：1A
- Voltage - Supply：3V ~ 5.5V
- Voltage - Load：10V ~ 44V
- Operating Temperature：-20°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：23-ESIP Formed Leads
- Supplier Device Package：23-ZIP (SLA)
- Grade：-
- Qualification：-
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Overview
The SLA7070MR is a two-phase unipolar stepper motor driver from the Sanken Electric SLA707xM series. It integrates low-power CMOS logic with high-current, high-voltage power FET outputs in a Power Multi-Chip Module (PMCM). The device provides complete control and drive for two-phase unipolar stepper motors, featuring internal fixed off-time and pulse-width modulation (PWM) current control. It eliminates the need for phase-sequence tables or complex interfaces. The NMOS outputs are capable of sinking up to 1 A and withstanding 46 V in the off state. Key specifications include a maximum motor supply voltage (VM) of 44 V, a load supply voltage (Vs) range of 10 V to 44 V, and a logic supply voltage (Vcc) range of 3 V to 5.5 V.
Feature Summary
- Integrates CMOS sequencing logic with high-current power FET outputs for direct stepper motor control
- Supports external selection of full-step and half-step operation modes
- Includes internal fixed off-time and PWM control for output current regulation
- Features clamp diodes for protection against inductive transients
Applications
- Personal Printer Copiers (PPC)
- Printers
- Office Automation (OA) Equipment
Procurement Notes
Verify the specific suffix 'MR' matches the required package and temperature grade. Confirm that the 1 A sink current capability meets the motor coil requirements. Ensure the 46 V breakdown voltage aligns with the system's motor supply voltage. Check for any specific ordering codes related to tape and reel quantities if applicable.
Selection Notes
Select this component when driving two-phase unipolar stepper motors requiring integrated logic and power stages. It is suitable for applications where microprocessor sequencing is undesirable or unavailable. Consider the 1 A output limit and 46 V voltage rating during design. Verify compatibility with TTL or LSTTL input levels using appropriate pull-up resistors if necessary.
Part Context
The SLA7070MR belongs to the SLA707xM family of 2-Phase Unipolar Stepper Motor Drivers manufactured by Sanken Electric Co., Ltd. This series combines CMOS logic with power FETs to simplify stepper motor interface designs. The part is designed for office automation and printer applications, offering a compact solution for motor control without complex external circuitry.
Replacement Considerations
Consult official Sanken Electric documentation for confirmed substitute part numbers within the SLA707xM series or equivalent product lines. Verify pinout compatibility and electrical specifications before substitution.
