LV51137T-TLM-E

Overview

The LV51137T-TLM-E is a battery protection integrated circuit designed for lithium-ion secondary batteries. It provides comprehensive protection for two-cell configurations, monitoring voltage and current to prevent damage from overcharge, overdischarge, and overcurrent conditions. The device integrates high-side P-channel MOSFETs for efficient power control within the protection loop. Packaged in an 8-MSOP (0.118 inch width) surface-mount package, it offers a compact solution for portable electronics requiring reliable cell management.

Feature Summary

• Integrated dual-channel protection for two-series lithium-ion cells
• Built-in high-side P-channel MOSFETs for low-loss switching
• Automatic discharge path activation during fault conditions

Applications

• Portable electronic devices requiring 2S lithium-ion battery packs
• Consumer electronics with integrated battery management needs
• Power tools utilizing protected lithium-ion cell arrays

Procurement Notes

Verify the manufacturer designation as Sanyo Semiconductor or onsemi, as corporate acquisitions have transferred product lines. Confirm the specific suffix TLM-E matches the required 8-MSOP package variant. Ensure compatibility with existing PCB footprints for 8-pin small outline packages before procurement.

Selection Notes

Select this component specifically for applications requiring protection of two-series connected lithium-ion cells. The integrated MOSFET design reduces external component count compared to discrete solutions. Verify that the operating temperature range and voltage thresholds align with the specific battery chemistry and system requirements.

Part Context

This part belongs to the LV5113x series of battery protection ICs from Sanyo Semiconductor. These components are widely used in consumer electronics for safeguarding rechargeable lithium-ion batteries. The series includes variants for different cell counts and package types, with the LV51137T tailored for dual-cell applications.

Replacement Considerations

Check for direct substitutes within the LV5113x family if pinout compatibility is critical. Verify equivalent electrical characteristics such as threshold voltages and current limits when considering cross-manufacturer alternatives.