DS4560S-AR+T

Hot Swap Controllers Overview

The DS4560S-AR+T is a fully integrated, self-protecting, and resettable hot-swap switch designed for +12V power buses. It incorporates a 25mΩ n-channel power MOSFET to eliminate external components. The device limits current via an external resistor on the ILIM pin and controls output voltage rise time using a capacitor on the VRAMP pin. It features an adjustable power-on timer determined by a TIMER pin capacitor, which can also be driven by digital logic for enable control. Operating within a 9.0V to 13.2V range, it supports up to 4.0A continuous load current in an 8-pin SOIC package.

Hot Swap Controllers Feature Summary

• Integrates a 25mΩ n-channel power MOSFET to minimize external component count
• Provides adjustable current limiting and controlled output voltage rise rates
• Features an adjustable power-on timer with digital logic enable capability
• Includes an auto-retry temperature sensor that resumes operation after cooling

Hot Swap Controllers Applications

• Enterprise-level hard drive backplanes
• Server and router systems
• PCI Express (PCIe) applications
• InfiniBand infrastructure
• Base station power distribution

Hot Swap Controllers Procurement Notes

Verify the suffix 'AR' confirms the auto-retry thermal protection feature, distinguishing it from the latching 'LO' variant. Ensure the '+T' designation matches the required tape-and-reel packaging format. Confirm the manufacturer source is Analog Devices or Maxim Integrated to guarantee authenticity. Cross-reference the specific date code and lot number against quality assurance requirements if applicable for critical infrastructure deployments.

Hot Swap Controllers Selection Notes

Select this component when designing for 12V backplane environments requiring safe insertion and removal. Choose the AR variant over LO if system continuity is critical, as it automatically retries after thermal events rather than requiring a power cycle. Ensure the external ILIM and VRAMP components are selected to meet specific current and slew rate requirements within the 9.0V to 13.2V operating window.

Hot Swap Controllers Part Context

Released by Maxim Integrated Products in November 2008, the DS4560 series addresses the need for simplified hot-swap solutions. The DS4560S-AR+T specifically targets high-reliability applications where automatic recovery from thermal stress is necessary. It remains in active production, serving as a standard solution for protecting 12V power buses in data center and telecommunications equipment.

Hot Swap Controllers Replacement Considerations

DS4560S-LO+T: Identical electrical specifications but features latching thermal shutdown instead of auto-retry.