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Product Detailed Parameters
- Description：IC MTR DRV BIPLR 4.5-5.5V 28HDIP
- Series：-
- Mfr：onsemi
- Package：Tube,Tube
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：-
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (4)
- Interface：Parallel, Serial
- Technology：Bipolar
- Step Resolution：-
- Applications：General Purpose
- Current - Output：1.5A
- Voltage - Supply：4.5V ~ 5.5V
- Voltage - Load：10V ~ 45V
- Operating Temperature：-20°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：28-SDIP (0.500", 12.70mm) Exposed Pad
- Supplier Device Package：28-HDIP
- Grade：-
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Overview
The onsemi LB1946-E is a bipolar stepper motor driver IC designed for general-purpose motion control applications. It integrates fully integrated control and power stages within a single package, eliminating the need for external driver components. The device operates with an operating supply current of 37 mA and supports both parallel and serial interface modes for flexible system integration. It is housed in a 28-pin PDIP-H or HDIP package, providing robust performance for driving bipolar stepper motors in various industrial and consumer electronic devices requiring precise motor positioning.
Feature Summary
- Fully integrated control and power stage design reduces component count
- Supports both parallel and serial interface configurations
- Optimized for bipolar stepper motor drive applications
Applications
- General-purpose motion control systems
- Industrial automation equipment
- Consumer electronics requiring precise motor positioning
Procurement Notes
Verify the specific package variant (PDIP-H vs HDIP) required for your PCB layout, as pinout compatibility may vary between these form factors. Confirm interface mode requirements (parallel or serial) during design-in to ensure signal compatibility with the host controller. Check current status as some listings indicate obsolete status; validate availability through authorized distributors before finalizing procurement plans.
Selection Notes
Select this component when a fully integrated solution for bipolar stepper motors is needed without external driver circuitry. Consider the 37 mA operating supply current for power budget calculations. Ensure the host system supports either parallel or serial communication protocols compatible with the LB1946-E interface options.
Part Context
The LB1946-E belongs to onsemi's portfolio of intelligent power and sensing technologies, specifically targeting motion control solutions. It represents a legacy bipolar motor driver series from the company's acquisition history, offering reliable performance for established designs requiring discrete bipolar stepper motor driving capabilities.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Verify functional equivalence with newer onsemi motor driver families if transitioning from obsolete stock.
