MAX5909UEE

Hot Swap Controllers Overview

The MAX5909UEE is a low-voltage, dual hot-swap controller and power sequencer designed for PCI Express applications. It operates with a supply voltage range of 1V to 13.2V and draws 1.2mA of supply current. The device supports an operating temperature range of 0°C to +85°C and utilizes external FETs with a threshold voltage of 25mV. Packaged in a 16-QSOP surface-mount case, it provides two independent channels for controlled power insertion.

Hot Swap Controllers Feature Summary

• Dual-channel architecture for independent hot-swap control
• Integrated power sequencing capabilities
• VariableSpeed/BiLevel technology for controlled ramp rates
• Fault protection including timeout and latched fault modes

Hot Swap Controllers Applications

• PCI Express backplane systems
• Hot-pluggable peripheral cards
• Multi-rail power distribution networks

Hot Swap Controllers Procurement Notes

Verify the specific suffix (e.g., +T or +TG11) against the required packaging format, as standard tape-and-reel options may differ from bulk quantities. Confirm that the 16-QSOP package availability aligns with current manufacturing status, as some variants may be discontinued. Ensure the external MOSFET selection matches the 25mV threshold specification for optimal performance.

Hot Swap Controllers Selection Notes

Select this component when dual independent hot-swap paths are required for PCI Express compliance. The internal sequencer simplifies board layout by managing turn-on order without external logic. Verify that the external FETs can handle the expected load currents while maintaining thermal stability within the 0°C to +85°C operating range.

Hot Swap Controllers Part Context

Part of the MAX5904–MAX5909 family of low-voltage dual hot-swap controllers. These devices share similar architectures but vary in feature sets such as overvoltage protection levels and sequencing flexibility. The MAX5909 specifically targets high-speed serial expansion standards requiring precise power management.

Hot Swap Controllers Replacement Considerations

Check for direct substitutes within the MAX5904–MAX5909 series based on specific feature requirements like overvoltage thresholds. Verify pin compatibility and package dimensions before substituting to ensure mechanical fit.