BA6238A

Overview

The BA6238A is a monolithic integrated circuit manufactured by Rohm Semiconductor, designed as a two-channel reversible motor driver for small DC brush motors. It incorporates two independent H-bridge driver circuits within a single package, allowing control of two separate motors or one motor with bidirectional rotation and braking capabilities. The device is optimized for low external component count, simplifying circuit design. It operates from a single power supply and features built-in protection mechanisms to ensure reliable operation in various consumer electronic applications requiring precise motor control.

Feature Summary

• Integrates two independent reversible motor driver channels on a single chip
• Supports bidirectional rotation and dynamic braking for DC brush motors
• Minimizes external component requirements for simplified PCB layout
• Designed for direct interface with logic-level control signals

Applications

• Small DC brush motor control in home appliances
• Reversible actuator drives in office equipment
• Motor control modules in automotive accessories
• Fan and pump speed/direction control systems

Procurement Notes

Verify the exact suffix (e.g., AN) against your schematic, as pinouts or electrical characteristics may differ between variants. Confirm RoHS compliance status if required by your manufacturing standards. Ensure the supplier provides official Rohm documentation to validate authenticity and revision level before procurement.

Selection Notes

Select this IC when dual-channel or single-channel bidirectional control is needed without complex discrete transistor arrangements. Consider thermal dissipation requirements based on load current. Verify that the input voltage range matches your system's logic levels. Evaluate alternative ROHM series if higher current capacity or different packaging is required.

Part Context

This component belongs to ROHM's dedicated motor driver family, specifically targeting cost-sensitive consumer electronics. It complements other ROHM drivers like the BA6239A, which may offer similar functionality with slight parameter variations. The BA6238A is widely recognized for its simplicity and reliability in driving small loads where space and bill-of-materials cost are critical constraints.

Replacement Considerations

Check for direct pin-to-pin replacements such as the BA6238AN, ensuring functional equivalence. Verify that any substitute maintains the same voltage ratings and current handling capabilities. Cross-reference datasheets to confirm compatibility with existing control logic and thermal management solutions.