LTC4088EDE-1#PBF

Battery Chargers Overview

The LTC4088EDE-1#PBF is a high-efficiency USB PowerPath controller and Li-Ion/Polymer battery charger in a 14-lead DFN package. It operates with an input voltage range of 4.25V to 5.5V and provides a regulated output voltage of 4.2V. The device supports a charge current of 1.5A and functions within a temperature range of -40°C to 85°C.

Battery Chargers Feature Summary

• Integrates a synchronous switching input regulator that automatically limits input current to 100mA, 500mA, or 1A via logic control for optimal USB power utilization.
• Features an internal ideal diode and external controller capability to seamlessly provide low-loss power path when input power is limited or unavailable.
• Automatically reduces charge current to maintain a regulated 3.6V output during low-battery conditions, ensuring system stability.

Battery Chargers Applications

• USB-powered portable devices requiring efficient battery charging
• Applications with space constraints needing low thermal dissipation
• Systems utilizing Li-Ion or Li-Polymer batteries

Battery Chargers Procurement Notes

Verify the specific suffix #PBF confirms lead-free compliance and RoHS standards. Confirm the -1 variant powers up with the charger off, distinct from other family members. Ensure the 14-lead DFN package dimensions match your PCB footprint requirements before finalizing procurement.

Battery Chargers Selection Notes

Select this component for designs prioritizing efficiency over linear regulators in USB applications. The -1 suffix indicates a specific power-up state where the charger is initially off. Consider the external P-channel MOSFET option if lower RON is required beyond the internal ideal diode capabilities.

Battery Chargers Part Context

This part belongs to the LTC4088 family of USB power managers. It shares core functionality with the LTC4088-2 but differs in initial power-up configuration. The device addresses thermal issues in constrained spaces by maximizing available USB port power for both application and battery charging.

Battery Chargers Replacement Considerations

LTC4088EDE-2#PBF offers identical electrical specifications but powers up with the charger enabled instead of disabled.