ML5243-001TDZ0ARL

Overview

The ML5243-001TDZ0ARL is a Li-Ion Battery Management LSI designed for battery protection applications. It supports lithium-ion battery chemistries with configurations ranging from three to five cells. The device operates within a supply voltage range of 5 V to 25 V and features an input voltage specification of 18 V to 25 V. It provides a regulated output of 3.3 V at up to 10 mA. The component functions as a dual-source battery charger with two-port BC1.2 detection capabilities. It is housed in a TSSOP 20-pin package and operates across a temperature range of -40°C to +85°C.

Feature Summary

• Integrated battery protection logic for multi-cell lithium-ion configurations
• Dual-source charging capability with integrated BC1.2 detection
• Built-in low-dropout regulator providing stable 3.3 V output

Applications

• Protection circuits for 3 to 5 series lithium-ion battery packs
• Portable electronic devices requiring dual-source power management
• BC1.2 compliant charging systems for mobile equipment

Procurement Notes

Verify the specific ordering suffix and package variant against the official ROHM datasheet before procurement. Confirm that the application design aligns with the specified 18 V to 25 V input range and 3.3 V output requirements. Ensure thermal management strategies accommodate the operational temperature limits of -40°C to +85°C. Cross-reference the pinout configuration with the TSSOP-20 footprint specifications to prevent assembly errors during integration.

Selection Notes

Select this component when designing systems requiring integrated protection and charging for 3 to 5 cell lithium-ion batteries. It is suitable for applications needing BC1.2 fast-charging support and dual-source power inputs. Consider the 3.3 V, 10 mA output capability for powering auxiliary circuitry. Evaluate the TSSOP-20 package constraints for PCB layout. This part is appropriate for portable electronics where space efficiency and comprehensive battery management are prioritized over high-current delivery.

Part Context

The ML5243-001TDZ0ARL belongs to ROHM Semiconductor's Li-Ion Battery Management LSI family. These components integrate protection, charging, and fuel-gauge functionalities into single chips. The product line targets portable consumer electronics and industrial devices requiring reliable battery monitoring. This specific model emphasizes dual-source charging and BC1.2 compatibility, distinguishing it from basic protection-only ICs in the broader portfolio.

Replacement Considerations

ROHM indicates this product cannot be used for new designs and is not recommended for design diversion. Engineers should consult the manufacturer for current recommended alternatives or updated models within the same battery management category.