AN41908A-VB

Overview

The AN41908A-VB is a lens driver IC designed for network and surveillance cameras, featuring integrated iris control. It operates on a 2.7V to 5.5V supply voltage with bipolar stepper motor support. The device provides five output channels: two for zoom, two for focus, and one for the iris. Output currents reach 250mA for zoom/focus and 150mA for iris. Step resolution ranges from 1 to 1/256. It utilizes Power MOSFET technology in a 44-pin QFN package.

Feature Summary

• Integrated iris control functionality within a single lens driver IC
• Voltage drive system combined with torque ripple correction techniques for super-low noise operation
• Supports high-resolution step control up to 1/256 for precise motor positioning

Applications

• Network camera lens driving
• Surveillance camera lens driving
• Optical zoom module control
• Auto-focus mechanism actuation

Procurement Notes

Verify component status as obsolete before procurement planning. Confirm exact suffix requirements for packaging or variant specifications. Ensure compatibility with existing 44QFN footprints. Check for authorized distributors offering remaining stock or valid alternatives. Validate technical documentation availability for design-in purposes.

Selection Notes

Select this component for applications requiring integrated zoom, focus, and iris control in a compact form factor. Suitable for designs needing low-noise performance through torque ripple correction. Consider the 44QFN package constraints and 2.7V-5.5V operating range. Evaluate if the 250mA output current meets specific motor load requirements.

Part Context

This part belongs to Panasonic's lens driver series for imaging systems. It integrates multiple motor drivers into one chip, reducing board space compared to discrete solutions. The AN41908A-VB specifically targets cost-sensitive surveillance and network camera modules requiring reliable optical control.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Due to the obsolete status, engineering teams should evaluate functional equivalents with similar pinouts and electrical characteristics. Verify interface compatibility and thermal performance when selecting alternative components.