LM5068MM-4

Hot Swap Controllers Overview

The LM5068MM-4 is a high-side protection controller designed for intelligent management of external N-channel MOSFETs. It features low quiescent current and provides precise control during normal switching and fault conditions. The device incorporates input under-voltage lockout with hysteresis and programmable over-voltage protection. Remote enable functionality allows for system-level on/off control. Key timing parameters, including initial startup Vgs delay, transition Vds fault detection delay, and continuous overcurrent Vds fault detection delay, are configurable via external capacitors. The controller latches the MOSFET off until the enable input or UVLO input goes low after a detected fault persists beyond the allowed delay.

Hot Swap Controllers Feature Summary

• Intelligent high-side N-channel MOSFET control with low static current consumption
• Configurable fault detection delays for startup, transition, and continuous overcurrent events
• Integrated input under-voltage lockout with hysteresis and programmable over-voltage protection
• Remote enable input for system-level power sequencing and control

Hot Swap Controllers Applications

• High-side load switch applications requiring precise fault protection
• Industrial systems needing remote power control and monitoring
• Automotive electronics utilizing high-side protection architectures

Hot Swap Controllers Procurement Notes

Verify the specific suffix 'MM-4' against official Texas Instruments documentation to confirm package type and tape/reel specifications. Ensure the component matches the required operating temperature range and electrical characteristics for your design. Cross-reference the datasheet revision date to guarantee compatibility with current manufacturing standards and pin configurations.

Hot Swap Controllers Selection Notes

Select this controller when precise timing control for MOSFET turn-on and fault response is critical. It is suitable for designs requiring configurable delay times to prevent false triggering during transient events. Consider the external capacitor requirements for setting Vgs and Vds delays. Ensure the external MOSFET selected can handle the voltage and current stresses managed by this controller within the specified operating temperature range.

Hot Swap Controllers Part Context

This component belongs to the LM506x family of high-side protection controllers from Texas Instruments. These devices are engineered to protect sensitive loads and power distribution networks from overcurrent, short circuits, and reverse polarity conditions. The family offers various packages and options to suit different board space and thermal requirements while maintaining consistent protection logic and performance characteristics.

Hot Swap Controllers Replacement Considerations

Consult the official Texas Instruments replacement guide for direct substitutes. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution. Ensure any alternative part supports the same N-channel MOSFET control architecture and configurable delay features.