UC3906Q

Battery Chargers Overview

The UC3906Q is a sealed lead-acid battery charger integrated circuit manufactured by Texas Instruments. It operates with a maximum input voltage of 40V and provides a charge current up to 2A. The device is housed in a 20-pin PLCC (LCC-20) package. It supports an operating temperature range from -40°C to +70°C. This component is designed for managing the charging cycles of lead-acid batteries, ensuring proper voltage regulation and current control during the charging process.

Battery Chargers Feature Summary

• Integrated linear charge management specifically engineered for sealed lead-acid battery applications
• Supports high-current charging capabilities up to 2 amperes for efficient power delivery
• Operates reliably within extended industrial temperature ranges suitable for diverse environmental conditions

Battery Chargers Applications

• Sealed lead-acid battery charging systems
• Uninterruptible Power Supply (UPS) units
• Solar energy storage battery management

Battery Chargers Procurement Notes

Verify the specific package variant, as the UC3906Q designation corresponds to the PLCC-20 form factor. Confirm that the required charge current aligns with the 2A maximum rating. Ensure the application environment stays within the specified -40°C to +70°C operational limits. Cross-reference the manufacturer part number to distinguish it from similar UC2906 or UC3906N variants which may differ in pinout or packaging.

Battery Chargers Selection Notes

Select this component when designing for sealed lead-acid batteries requiring robust linear charge management. It is suitable for applications needing up to 2A charge current and 40V input tolerance. Consider the PLCC-20 package constraints for PCB layout. Evaluate thermal dissipation requirements given the linear regulation nature at higher currents. Compare against UC2906 series if lower current or different packaging is preferred.

Battery Chargers Part Context

The UC3906Q belongs to the UC3906 family of battery chargers from Texas Instruments. It is distinct from the UC2906 series, which typically offers lower current ratings. The Q suffix often denotes a specific package type or qualification level within the manufacturer's lineup. It serves as a dedicated solution for maintaining and charging sealed lead-acid cells in portable or stationary power systems.

Battery Chargers Replacement Considerations

UC2906DWG4 and UC2906NG4 are related parts in the same family but offer lower output currents (40mA). Direct substitution requires verifying if the reduced current capacity meets the system requirements. Package differences between PLCC-20 and SOIC/PDIP must be addressed during board redesign.