LM3622MX-8.2/NOPB

Battery Chargers Overview

The LM3622MX-8.2/NOPB is a lithium-ion battery charger controller manufactured by Texas Instruments, designed specifically for two-cell Li-ion battery applications. It operates within an input voltage range of 4.5V to 10V and provides a regulated charging current up to 25mA. The device features a fixed output voltage setting of 8.2V, suitable for series-connected cells. It utilizes an 8-pin SOIC surface-mount package with a thermal pad for efficient heat dissipation. The component supports constant-current/constant-voltage charging profiles and includes safety features such as thermal regulation and charge termination detection.

Battery Chargers Feature Summary

• Provides constant current charging capability optimized for two-cell lithium-ion battery configurations
• Ensures high efficiency and low noise operation during the charging cycle
• Integrates thermal regulation to manage junction temperature under varying load conditions
• Utilizes a compact 8-SOIC package design to minimize printed circuit board footprint

Battery Chargers Applications

• Two-cell lithium-ion battery pack management systems
• Portable electronic devices requiring safe rechargeable battery charging
• Consumer electronics with limited space for power management components
• Industrial control units utilizing dual-cell lithium-ion power sources

Battery Chargers Procurement Notes

Verify the exact part number suffix NOPB to confirm lead-free compliance and RoHS status. Ensure the package type matches the required 8-SOIC form factor with thermal pad. Confirm the manufacturer is Texas Instruments to avoid counterfeit components. Check datasheet revisions for any updates to electrical characteristics or recommended operating conditions before integration into final designs.

Battery Chargers Selection Notes

Select this component when designing circuits for two-cell lithium-ion batteries requiring precise current control. Consider the 25mA maximum charging current limit against battery capacity requirements. Evaluate the 8.2V fixed output voltage against the specific series cell configuration needs. Assess the thermal performance capabilities of the SOIC package relative to the expected ambient operating temperatures and PCB copper area available for heat spreading.

Battery Chargers Part Context

This device belongs to the LM3622 series of battery charger controllers from Texas Instruments. The series focuses on providing reliable charging solutions for portable applications. The MX suffix indicates the SOIC package variant, while NOPB denotes non-pb-free (lead-free) construction. This specific model targets the niche market for dual-cell lithium-ion systems where size and efficiency are critical constraints.

Battery Chargers Replacement Considerations

Consult official Texas Instruments documentation for direct pin-to-pin replacements within the LM3622 family. Verify that alternative parts support the same two-cell lithium-ion architecture and 8.2V output requirement. Ensure compatibility with the 8-SOIC package dimensions if physical space is constrained. Cross-reference electrical specifications to maintain system stability and safety margins.