4.5 Amp Overvoltage Protection IC with Surge Protection

Description

The KTS1650B overvoltage protection (OVP) device features an ultra-low 36mΩ (typical) on-resistance high current integrated MOSFET which actively protects low voltage systems from voltage supply faults up to +28VDC. An internal clamp protects the device from surges up to 200V.

An input voltage exceeding the overvoltage threshold will cause the internal MOSFET to turn off, preventing excessive voltage from damaging downstream devices. When the OVLO input set below the external OVLO select voltage, the KTS1650B automatically chooses the internal fixed OVLO threshold, preset to 6.4V (typical). The overvoltage protection threshold can be adjusted with optional resistor divider to a voltage between 4V and 24V. The KTS1650B is protected against over-current faults by an internal over-temperature protection shutdown feature.

The KTS1650B is available in a RoHS and Green compliant 12-Bump 2.156mm x 1.486mm x 0.620mm WLCSP.

Features

  • Wide Input voltage range: 2.3V to 28V
  • Up to 4.5A Continuous current capability
  • Integrated 36mΩ (typ) N-Channel MOSFET
  • Wide Overvoltage threshold range
    • Fixed internal: 6.4V
    • Adjustable: 4V to 24V
  • Fast OVP response time: 0.1μs (typ.)
  • Internal 15ms Startup Debounce
  • Integrated Surge Protection up to +/-200V
  • Low Quiescent Current: 100μA (typ.)
  • Thermal Shutdown and Short Circuit Protection
  • Compliance to IEC61000-4-2 (Level 4)
    • Contact: ±8kV
    • Air Gap: ±15kV
  • ESD Protection
    • Human Body Model: ±2kV
  • Pb-free Package: 12-Bump WLCSP
  • -40°C to +85°C Temperature Range

Applications

  • Smartphones
  • Tablet
  • Mobile Internet Devices, Peripherals

Packaging Information

Package Dimensions Bumps Package Code
WLCSP34-12 (2.156mm x 1.486mm x 0.620mm) WLCSP

Technical Documentation

Description Documents Type
DatasheetKTS1650B-04bPDF

Purchase

Purchase Options
Buy from Digi-Key
Buy from Mouser