BQ2003PN-N

Overview

The BQ2003PN-N is a fast-charge controller IC designed for nickel-cadmium and nickel-metal hydride batteries. It utilizes hysteretic PWM switch-mode technology to manage charging cycles efficiently. The device operates within an ambient temperature range of 0°C to 70°C. It is housed in a standard 16-pin DIP package, suitable for through-hole mounting. This component serves as a dedicated power management solution for battery conditioning applications.

Feature Summary

• Supports fast charge and conditioning protocols for nickel-based chemistries
• Employs hysteretic PWM switch-mode control architecture
• Designed specifically for multi-chemistry battery management

Applications

• Nickel-cadmium battery charging systems
• Nickel-metal hydride battery conditioning circuits
• Portable electronic device power management

Procurement Notes

Verify the specific suffix 'N' indicates the lead-free or specific packaging variant required for your assembly process. Confirm that the 16-DIP package aligns with your PCB footprint specifications. Ensure the operating temperature range meets your environmental requirements. Cross-reference the manufacturer's latest datasheet for any pinout revisions or updated electrical characteristics before finalizing procurement.

Selection Notes

Select this component when designing chargers for NiCd or NiMH batteries requiring hysteretic PWM control. It is appropriate for applications needing a dedicated fast-charge controller rather than a complete integrated charger. Consider the 16-DIP package constraints if space is limited. Evaluate thermal performance within the specified 0°C to 70°C range for your specific enclosure design.

Part Context

This part belongs to Texas Instruments' battery management portfolio, focusing on nickel-based battery technologies. It complements other PMIC solutions by providing specialized control for fast-charging cycles. The BQ2003 series is distinct from lithium-ion controllers, targeting legacy and specific industrial battery chemistries that require precise voltage and current regulation during charge phases.

Replacement Considerations

Check for direct substitutes like the BQ2003PNN or variants with different suffixes for packaging changes. Verify compatibility with existing circuit designs when replacing with generic fast-charge controllers. Ensure any alternative maintains the hysteretic PWM functionality and supports the same battery chemistries.