ML5243-003TDZ0ATL

Overview

The ML5243-003TDZ0ATL is a lithium-ion battery management LSI manufactured by Rohm Semiconductor. It supports battery configurations of 3 to 5 cells and provides comprehensive protection against overcurrent, overtemperature, and over/under voltage conditions. The device operates within a supply voltage range of 5 V to 25 V and features output voltages of 2.4 V and 3.3 V. It is housed in a 20-TSSOP package with a width of 4.40 mm and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated protection against overcurrent, overtemperature, and over/under voltage faults for lithium-ion batteries
• Supports battery packs consisting of 3 to 5 series-connected cells
• Operates on a wide input supply voltage range from 5 V to 25 V

Applications

• Protection circuits for multi-cell lithium-ion battery packs
• Portable electronic devices requiring integrated battery management
• Industrial equipment utilizing 3S to 5S lithium-ion power sources

Procurement Notes

Verify the specific ordering suffix TDZ0ATL to ensure correct packaging and tape specifications. Confirm RoHS compliance status and moisture sensitivity level (MSL 2) requirements for your assembly process. Check for any end-of-life notices or recommended replacement parts if designing for long-term production. Ensure the 20-TSSOP footprint matches your PCB layout constraints.

Selection Notes

Select this component when a single-chip solution is required for protecting 3 to 5 series lithium-ion cells. It is suitable for applications needing integrated overcurrent, thermal, and voltage monitoring without external discrete components. Consider the 20-TSSOP package size and the 5 V to 25 V operating range during system design. Verify that the -40°C to +85°C temperature range meets environmental requirements.

Part Context

This part belongs to the ML5243 series of battery management ICs from Rohm Semiconductor. These devices are designed specifically for lithium-ion battery protection, offering a compact alternative to discrete protection circuits. The series integrates multiple safety functions into a single LSI, simplifying board space and reducing component count for battery-powered systems.

Replacement Considerations

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