L6924UTR

Battery Chargers Overview

The L6924UTR is a monolithic battery charger for single-cell Li-Ion/Polymer packs, housed in a VFQFPN-16 (3x3 mm) package. It supports an input voltage range of 2.5 V to 12 V and delivers up to 1 A charge current. The device integrates power MOSFETs, reverse blocking diodes, and sense resistors. It operates in linear mode with CC/CV profiles or quasi-pulse mode for current-limited adapters. Features include programmable pre-charge/fast-charge currents, end-of-charge thresholds, and timers. Output voltage accuracy is ±1% at 4.1 V or 4.2 V. Closed-loop thermal control prevents overheating.

Battery Chargers Feature Summary

• Integrates all power elements including MOSFETs, diodes, and sense resistors within a compact package
• Supports both linear constant current/constant voltage charging and quasi-pulse operation modes
• Provides closed-loop thermal control to prevent device overheating during charging cycles
• Offers diagnostic outputs for communication with host microcontrollers or LED indication

Battery Chargers Applications

• Handheld equipment requiring space-limited power solutions
• Digital cameras utilizing single-cell lithium-based batteries
• USB bus-compatible portable electronic devices
• Applications requiring flexible charge process termination control

Battery Chargers Procurement Notes

Verify the specific suffix 'UTR' corresponds to the required tape-and-reel packaging configuration containing 4000 units per reel. Confirm that the VFQFPN-16 surface-mount package aligns with your PCB footprint requirements. Ensure compatibility with the intended input voltage range of 2.5 V to 12 V for your power adapter specifications before finalizing procurement.

Battery Chargers Selection Notes

Select this component when designing for single-cell Li-Ion or Polymer batteries where board space is constrained. It is suitable for applications needing integrated power switches without external Schottky diodes. Choose this part if you require programmable charge parameters and thermal protection. It is ideal for systems powered by voltage-regulated wall adapters or current-limited USB sources.

Battery Chargers Part Context

This device belongs to STMicroelectronics' battery management portfolio, specifically designed for portable electronics. It replaces discrete charging solutions by integrating power MOSFETs and protection circuits. The L6924 series addresses the need for high-density power management in consumer gadgets like digital cameras and handheld devices.

Battery Chargers Replacement Considerations

Check for other variants within the L6924U series that may offer different packaging options or slight parameter variations. Verify pinout compatibility if substituting with similar monolithic chargers from other manufacturers. Ensure any replacement maintains the same 16-pin VFQFPN form factor for direct board integration.