A8439EEJTR-T

Overview

The A8439EEJTR-T is a dedicated photoflash capacitor charger integrated circuit manufactured by Allegro MicroSystems. It operates within a supply voltage range of 3V to 5.5V and draws a typical supply current of 1.5mA. The device is housed in a compact 10-lead TDFN package with dimensions of 3mm x 3mm, designed for surface-mount assembly. This component functions as a specialized power management IC intended for high-voltage charging applications in portable imaging systems.

Feature Summary

• Dedicated architecture optimized for rapid photoflash capacitor charging cycles
• Low quiescent supply current to preserve battery life in portable devices
• Compact 10-lead TDFN footprint suitable for space-constrained mobile designs

Applications

• Photoflash capacitor charging in digital cameras
• Power management for mobile phone camera modules
• Portable imaging equipment flash systems

Procurement Notes

Verify the specific suffix and tape-and-reel quantity against the manufacturer's latest datasheet before ordering. Confirm that the 10-TDFN (3x3) package matches your PCB footprint requirements. Ensure compatibility with the target system's input voltage range of 3V to 5.5V. Check for any recent lifecycle notices or obsolescence warnings from Allegro Microsystems.

Selection Notes

Select this component when designing portable imaging systems requiring efficient high-voltage capacitor charging. It is suitable for applications where low standby current is critical for battery-operated devices. Consider the 10-TDFN package size if board real estate is limited. Ensure the design supports the required input voltage range and thermal dissipation for the chosen enclosure.

Part Context

This part belongs to Allegro MicroSystems' portfolio of specialized power management integrated circuits. It is distinct from their motor drivers and LED controllers, focusing specifically on high-voltage charge pump applications. The A8439 series is engineered for the consumer electronics sector, particularly mobile photography hardware.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical specifications with alternative vendors if sourcing directly from Allegro is not possible.