A8731EEJTR-T

Overview

The A8731EEJTR-T is a specialized power management integrated circuit manufactured by Allegro MicroSystems. It functions as a photoflash capacitor charger and xenon flash driver, designed for portable electronic applications requiring high-voltage pulse generation. The device operates within a supply voltage range of 2.3V to 5.5V and features a low quiescent current of 10μA. It is housed in a compact 10-WFDFN Exposed Pad package, specifically the 10-TDFN (3x3) configuration, suitable for surface-mount assembly.

Feature Summary

• Integrated photoflash capacitor charging capability for xenon flash systems
• Low quiescent current consumption for extended battery life
• Compact surface-mount packaging optimized for space-constrained designs

Applications

• Mobile phone camera xenon flash circuits
• Digital camera flash power supplies
• Portable imaging devices requiring high-voltage pulses

Procurement Notes

Verify the specific suffix and tape-and-reel quantity against the manufacturer's latest datasheet before ordering. Confirm that the 10-TDFN footprint matches your PCB layout constraints. Ensure input voltage requirements align with your system's battery profile to guarantee proper operation of the internal charge pump.

Selection Notes

Select this component when designing portable imaging systems that require a dedicated xenon flash driver. It is appropriate for applications needing a small form factor and low standby current. Compare its output voltage capabilities and charging speed against alternative PMICs if higher power or different interface protocols are required.

Part Context

This part belongs to Allegro MicroSystems' portfolio of specialized power management ICs. It is distinct from their motor drivers and gate drivers, focusing specifically on energy storage and release for flash photography. The TDFN package variant ensures compatibility with standard SMT manufacturing processes used in consumer electronics assembly lines.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Allegro MicroSystems technical support for direct replacements or pin-compatible alternatives.