LT1769IGN#PBF

Battery Chargers Overview

The LT1769IGN#PBF is a multi-chemistry battery charger IC from Analog Devices, designed for constant-current and constant-voltage charging profiles. It supports lithium-ion, lithium-polymer, nickel-cadmium, and nickel-metal hydride batteries within a 1V to 20V input range. The device delivers up to 2A of charge current and includes programmable input current limiting to protect upstream power sources. Packaged in a 28-pin SSOP, it integrates thermal regulation and status indicators for robust standalone operation.

Battery Chargers Feature Summary

• Supports multiple battery chemistries including Li-Ion, Li-Pol, NiCd, and NiMH
• Integrates programmable input current limiting for source protection
• Includes internal thermal regulation to prevent overheating during high-current charging

Battery Chargers Applications

• Portable electronic devices requiring multi-chemistry battery support
• Industrial equipment using NiCd or NiMH battery packs
• Medical devices with strict safety and charging profile requirements

Battery Chargers Procurement Notes

Verify the specific suffix against the manufacturer's latest datasheet to confirm pinout and feature variations. Confirm RoHS compliance status directly with the supplier. Check for obsolescence notices as legacy components may have limited availability. Ensure the package type matches your PCB footprint design constraints before ordering.

Battery Chargers Selection Notes

Select this component when supporting diverse battery types like NiCd or NiMH alongside Li-Ion is required. It is suitable for applications needing integrated input current limiting to manage USB or wall adapter limits. Consider the 28-pin SSOP package size relative to available board space. Verify that the 2A output current meets the target battery's maximum charge rate specifications.

Battery Chargers Part Context

This part belongs to the Linear Technology (now Analog Devices) portfolio of battery management solutions. It serves as a dedicated charger controller for systems requiring reliable, safe charging cycles across various electrochemical standards. The device simplifies design by integrating control loops and protection features typically found in discrete implementations.

Battery Chargers Replacement Considerations

Consult Analog Devices documentation for direct pin-compatible alternatives within the LTC series. Verify functional equivalence regarding input voltage ranges and maximum charge currents. Ensure any substitute maintains compatibility with the intended battery chemistry support capabilities.