LB1861M-MPB-H

Overview

The LB1861M-MPB-H is a monolithic linear integrated circuit manufactured by Sanyo, designed specifically as a charging IC for Nickel-Cadmium and Nickel Metal Hydride batteries. It features a single-channel power supply support circuit architecture housed in a compact SSOP-10 package. The device supports cycle charge and trickle charge switching modes, making it suitable for microcontroller-based systems that utilize charge voltage detection. Key electrical parameters include an allowable power dissipation rating and an operating temperature range spanning from -20°C to +80°C. The component utilizes external resistors to set the change current and operates within specified maximum supply and input voltage limits defined in its datasheet.

Feature Summary

• Supports cycle charge and trickle charge switching for optimized battery management
• Ideally suited for microcontroller-based charging systems utilizing charge voltage detection
• Allows change current setting via external resistor configuration

Applications

• Charging systems for Nickel-Cadmium batteries
• Charging systems for Nickel Metal Hydride batteries
• Microcontroller-based battery management units

Procurement Notes

Verify the manufacturer origin, as Sanyo Semiconductor has undergone corporate restructuring and brand transitions. Confirm the specific package variant matches the SSOP-10 requirement. Ensure the sourcing channel provides valid documentation for the LA5614M equivalent if applicable, as part number variations may exist across different production eras or subsidiary branding.

Selection Notes

Select this component when designing chargers for NiCd or NiMH chemistries requiring simple, cost-effective control. It is appropriate for applications where charge voltage detection is preferred over delta-V methods. Consider the thermal constraints of the SSOP package and the -20°C to +80°C operating range during system integration.

Part Context

This component belongs to the family of monolithic linear ICs produced by Sanyo for battery charging applications. It serves as a dedicated power supply support circuit, distinct from general-purpose regulators. The device integrates necessary control logic for safe charging cycles into a small footprint, facilitating easy implementation in portable electronic devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.