Adjustable Over-Voltage Protection Switch

Description

The KTS1670 over-voltage protection device features an ultra-low 60mΩ (typical) on-resistance high current integrated MOSFET which actively protects low-voltage systems from voltage supply faults up to +30V.

An input voltage exceeding the over-voltage threshold will cause the internal MOSFET to turn off, preventing excessive voltage from damaging downstream devices.

When the OVLO input is connected to GND, the KTS1670 automatically chooses the internal fixed OVLO threshold, preset to 6.05V (typical). The over-voltage protection threshold can be adjusted with an optional external resistor divider to a voltage between 4V and 22V.

In case the device temperature exceeds the maximum junction temperature, the device switches off.

The KTS1670 is available in a RoHS and Green compliant 8-lead 2.0 x 2.0 x 0.5mm UDFN and 6-Bump 1.20 x 1.00mm WLCSP packages.

Features

  • Wide Input voltage range: 2.7V to 30V
  • Up to 3.0A current capability
  • Integrated 60mΩ (typ) N-Channel MOSFET
  • Fast OVP turn-off response time: 100ns
  • Flexible trip-point options
    • Default Fixed 6.05V
    • Adj. 4V to 22V
  • Auto-enabled switch with 18ms debounce time
  • Under voltage (UVLO), Short-circuit and thermal shutdown protection
  • Compliance to IEC61000-4-2 (level 4)
    • Contact: ±8kV
    • Air Gap: ±15kV
  • ESD Protection
    • Human Body Model: ±2.5kV
  • Pb-free UDFN-8 package and WLCSP-6 packages
  • -40°C to +85°C Temperature Range

Applications

  • Smartphone
  • Mobile Internet Devices
  • Tablet Computers
  • Peripherals
  • STB

Technical Documentation

Description Documents Type
DatasheetKTS1670-04ePDF

Purchase

Purchase Options
Buy from Digi-Key
Buy from Mouser