BD6753KV

Overview

The BD6753KV is a six-channel motor driver IC designed for digital still cameras and single-lens reflex cameras. It integrates four Full-ON drive H-bridge channels with a typical on-resistance of 1.2Ω, and two PWM constant-current drive H-bridge channels also featuring 1.2Ω typical on-resistance. The device operates on a supply voltage range of 4.5V to 10.5V for the first channel (VM1) and 2.0V to 10.5V for channels VM2 through VM4. Control is managed via a serial 3-line bus interface. Internal circuitry includes a charge pump for DMOS gate driving, under-voltage lockout protection, and thermal shutdown capabilities.

Feature Summary

• Integrates mixed drive modes combining four full-on H-bridge channels with two peak current control PWM constant-current channels for versatile lens actuation.
• Utilizes a low on-resistance DMOS output structure to minimize power loss and heat generation during operation.
• Features an internal charge pump circuit to ensure reliable gate voltage drive for the DMOS outputs without external components.
• Includes comprehensive protection mechanisms such as under-voltage lockout and thermal shutdown to maintain system safety.

Applications

• System lens drivers for digital still cameras
• System lens drivers for single-lens reflex cameras

Procurement Notes

Verify the specific ordering suffix and package variant when sourcing, as availability may vary by region. Confirm that the application environment remains within the specified temperature and voltage limits defined in the official datasheet. Ensure ESD handling protocols are followed during assembly due to the CMOS/DMOS nature of the component. Cross-reference the pinout with your PCB layout to avoid misalignment issues.

Selection Notes

Select this component for camera systems requiring precise control of multiple lens motors with mixed drive requirements. The integration of both full-on and PWM constant-current drives simplifies the design for complex lens assemblies. Consider the 3-line serial interface compatibility with your microcontroller. The low standby current consumption supports battery-operated portable devices effectively.

Part Context

This part belongs to ROHM's family of motor drivers optimized for imaging equipment. It addresses the need for compact, high-efficiency solutions in consumer electronics where space is limited. The design focuses on reducing the bill of materials by integrating necessary protection and drive circuits into a single package suitable for wafer-level CSP applications.

Replacement Considerations

Check ROHM documentation for direct pin-to-pin replacements or functional equivalents within the BD63xx or BD68xx series if stock is unavailable. Ensure any substitute maintains the same voltage ratings and drive channel configuration to guarantee compatibility with existing lens mechanisms.