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Kinetic Technologies KTS1801 48V 6ARMS VBUS OVP Load Switch

Kinetic Technologies KTS1801 48V 6ARMS VBUS OVP Load Switch is a USB VBUS safety management load switch for up to 288W input or output in 48V EPR systems. The operating range is 3V to 55V with VBUS withstand up to 56VDC and VSYS up to 59VDC. Ultra-fast over-voltage protection (OVP) is internally set to 54.2V but can be adjusted via external resistors. Low on-resistance minimizes heat and voltage droop.

KTS1801A has an automatic reverse-current protection (RCP) feature that acts as a 17mV “ideal diode” with fast recovery. KTS1801B supports bi-directional mode when enabled. Additional safety management includes short-circuit protection (SCP) during and after soft-start, ultra-fast overcurrent protection (OCP), over-temperature protection (OTP), and an integrated transient-voltage suppressor (Active TVS) for IEC industry-standard ±30kV ESD and ±130V surge ratings. VBUS active-discharge circuits are also integrated.

The Kinetic Technologies KTS1801 is packaged in an advanced, fully Green-compliant, 3.09mm x 3.86mm, 42-bump Wafer-Level Chip Scale Package (WLCSP).

Features

  • 3V to 55V operating voltage range
  • 56VDC abs. (max.) rating at VBUS and 59VDC at VSYS
  • 6ARMS continuous current rating
  • 31mΩ (typ.) on-resistance from VBUS to VSYS
  • 54V, 300ns Over-Voltage Protection (OVP) at VBUS with 4V to 55V external resistor programmable
  • Over-Voltage Protection (OVP) latch off at VCHSYS with 4V to 55V external resistor programmable
  • Transient voltage suppression (active TVS) at VBUS
    • ±130V surge protection (IEC61000-4-5, IPP = 34A)
    • ±30kV ESD contact discharge (IEC61000-4-2)
    • ±30kV ESD air-gap discharge (IEC61000-4-2)
  • Soft-Start (SS) limits inrush current
  • Short-Circuit Protection (SCP) during and after SS
  • 24A, 200ns Over-Current Protection (OCP)
  • “Ideal Diode” Reverse-Current Protection (RCP, KTS1801A only) with VF = 17mV and 15µs fast recovery
  • Bi-directional mode when enabled (KTS1801B only)
  • Over-Temperature Protection (OTP)
  • VBUS active discharge circuit
  • /ACOK output flag and hiccup auto-retry after faults
  • -40°C to +85°C operating temperature range
  • 42-bump WLCSP 3.09mm x 3.86mm (0.5mm pitch)

Applications

  • Workstation and gaming notebooks
  • Mini desktop PCs, monitors, and docking stations
  • Conferencing systems
  • Tools, E-bikes, battery power stations, etc.

Functional Block Diagram

Block Diagram - Kinetic Technologies KTS1801 48V 6ARMS VBUS OVP Load Switch
Publié le: 2026-04-24 | Mis à jour le: 2026-04-29