LTC4056ETS8-4.2#TRMPBF

Battery Chargers Overview

The LTC4056ETS8-4.2#TRMPBF is a linear lithium-ion battery charger IC manufactured by Analog Devices Inc., designed for single-cell applications with a fixed 4.2V output voltage. It operates within a supply voltage range up to 6.5V and supports a maximum programmable charging current of 1A. The device integrates thermal regulation to limit junction temperature during high-power charging or elevated ambient conditions. It utilizes a TSOT-23-8 surface-mount package and functions reliably across an operating temperature range of -40°C to +85°C, ensuring stable performance in portable electronic environments.

Battery Chargers Feature Summary

• Integrates thermal regulation circuitry to dynamically adjust charging current based on junction temperature
• Provides constant-current/constant-voltage charging profile optimized for single-cell lithium-ion batteries
• Includes status indicators for charge completion and thermal throttling via dedicated pins

Battery Chargers Applications

• Single-cell lithium-ion battery charging in portable consumer electronics
• Power management systems for mobile communication devices
• Battery backup units requiring compact linear charging solutions

Battery Chargers Procurement Notes

Verify the specific suffix TRMPBF corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 4.2V output variant matches the target battery chemistry specifications. Ensure compatibility with the TSOT-23-8 footprint during PCB layout finalization. Cross-reference the manufacturer's latest datasheet for any updates to pin configurations or recommended external component values.

Battery Chargers Selection Notes

Select this component when a compact, low-component-count solution is required for single-cell lithium-ion charging. The integrated thermal regulation simplifies design by reducing the need for external temperature sensing circuits. Consider the 1A current capability against the target battery capacity and system power constraints. Evaluate the TSOT-23-8 package size relative to available board space compared to larger packages like SOT-23-5 variants.

Battery Chargers Part Context

This part belongs to the LTC4056 family of linear chargers from Analog Devices Inc., which offers various current ratings and package options. The ETS8 designation indicates the specific TSOT-23-8 package variant, distinguishing it from other form factors within the same functional family. The 4.2# suffix specifies the fixed output voltage setting for standard lithium-ion cells.

Battery Chargers Replacement Considerations

Direct substitutes include other LTC4056 variants with different current ratings or packages, such as the LTC4054 series for lower current requirements. Verify pin-to-pin compatibility and thermal performance characteristics before substitution. Consult official replacement guides for cross-referencing package-specific alternatives.