LM3420M5X-8.4

Battery Chargers Overview

The LM3420M5X-8.4/NOPB is a lithium-ion battery charge controller designed for charging single-cell batteries with an 8.4 V output voltage option. It supports input voltages up to 20 V and provides an output current of up to 15 mA. The device features precision end-of-charge detection with 0.5% accuracy. It is housed in a SOT-23 (DBV) package with five pins and operates within a temperature range of -40°C to 125°C.

Battery Chargers Feature Summary

• Supports charging for one, two, three, or four lithium-ion cells depending on the specific voltage variant selected.

Battery Chargers Applications

• Portable electronic devices requiring single-cell lithium-ion battery management
• Low-power consumer electronics with limited space constraints
• Battery-powered instrumentation systems

Battery Chargers Procurement Notes

Verify the exact suffix and marking code when sourcing, as the LM3420 series includes multiple voltage options. Confirm availability status, as this specific part number may be obsolete. Ensure the supplier provides original manufacturer documentation to validate authenticity and revision level before procurement.

Battery Chargers Selection Notes

Select this component when a fixed 8.4 V charging profile is required for a single-cell lithium-ion application. Consider the 15 mA current limit and 20 V maximum input voltage against system requirements. Evaluate the SOT-23-5 package size for PCB layout compatibility and thermal performance needs.

Battery Chargers Part Context

This part belongs to the Texas Instruments LM3420 family of linear charge controllers. The family offers various voltage options to accommodate different cell configurations. The LM3420M5X-8.4 specifically targets single-cell applications with a defined 8.4 V termination voltage, distinguishing it from variants designed for multi-cell stacks.

Battery Chargers Replacement Considerations

Direct substitutes include other LM3420 variants with compatible pinouts if voltage requirements differ. Verify electrical specifications and package dimensions match before substitution. Check manufacturer obsolescence notices for alternative recommendations.

Battery Chargers FAQ

What is the maximum input voltage supported by the LM3420M5X-8.4?

The device supports an input voltage range of up to 20 V.

What is the package type for this component?

It is available in a SOT-23 (DBV) package with five pins.