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Kinetic Technologies KTS1897 5ARMS VBUS OVP Load Switch

Kinetic Technologies KTS1897 5ARMS VBUS Over-Voltage Protection (OVP) Load Switch is a USB VBUS safety management load switch for up to 140W current-sink input for 28V EPR systems. The input operating range is 3V to 33V, with VBUS withstanding up to 39VDC and VSYS up to 35VDC. Ultra-fast OVP is internally set to 33V but optionally adjusted via external resistors. Low on-resistance minimizes heat and voltage droop.

The KTS1897A/B has an automatic reverse-current protection (RCP) feature that acts as an “ideal diode” with fast recovery and isolates VBUS when charging or powering the system via another port. When enabled, the KTS1897C/D supports bidirectional mode. Additional safety management includes short-circuit protection (SCP) during soft start, over-current protection (OCP), and over-temperature protection (OTP).

The Kinetic Technologies KTS1897 is packaged in an advanced, fully Green compliant, 2.56mm x 2.00mm, 20-bump wafer-level chip-scale package (WLCSP).

Features

  • 3V to 33V operating voltage range
  • 39VDC Abs. (max.) rating at VBUS and 35V at VSYS
  • 5A continuous current rating
  • 24mΩ typ. on-resistance from VBUS to VSYS
  • Soft start (SS) limits inrush current
  • OVP at VBUS
    • 33V, 100ns internally fixed
    • 4V to 33V external resistor programmable
  • OVP latch off at VCHSYS with 4V to 28V external resistor programmable
  • Bi-directional mode when enabled (KTS1897C/D only)
  • Ideal diode reverse-current protection (RCP, KTS1897A/B only) with VF = 20mV and 15µs fast recovery
  • Reverse blocking when disabled
  • SCP at VBUS and VSYS
  • OCP
  • OTP
  • /EN (KTS1897A/C) or EN (KTS1897B/D) enable logic
  • Hiccup mode auto-retry after faults
  • -40°C to +85°C operating temperature range
  • 20-bump WLCSP 2.56mm x 2.00mm, 0.5mm pitch

Applications

  • Notebooks and gaming PCs
  • Mini desktop PCs, docking stations, and monitors

Typical Application

Application Circuit Diagram - Kinetic Technologies KTS1897 5ARMS VBUS OVP Load Switch
Publié le: 2025-06-04 | Mis à jour le: 2025-06-11