Description

The KTS1668 over-voltage protection (OVP) device features an ultra-low 38mΩ (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 100V.

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 set below the external OVLO select voltage, the KTS1668 automatically chooses the internal fixed OVLO threshold, preset to 13.75V (typical). The overvoltage protection threshold can be adjusted with an optional resistor divider to a voltage between 4V and 22V.

The device features a microphone mode which disables the OVP switch and allows the microphone signal present on the input to be output at VDET pin without an additional multiplexer circuit. The KTS1668 is protected against overcurrent faults by an internal over-temperature protection shutdown feature.

The KTS1668 is available in a RoHS and Green compliant 12-Bump 1.288mm x 1.988mm x 0.64mm WLCSP.

Features

  • Wide Input voltage range: 2.3V to 30V
  • Up to 4A Continuous current capability
  • Integrated 38mΩ (typ) N-Channel MOSFET
  • Wide Over-Voltage threshold range
    • Fixed internal: 13.75V
  • Fast OVP response time: 0.1µs (typ.)
  • Internal 15ms Startup Debounce
  • Integrated Surge Protection up to 100V
  • Low Quiescent Current: 70µA (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 1.288mm x 1.988mm x 0.64mm 12 AY

Parameters

Vin (min)  Vin (max)  ON Resistance Max Current (A) OVP Trip Point Package
2.3V 28V 38mΩ 4.0 Fixed 13.75 WLCSP34-12

Technical Documentation

Description Documents Type
DatasheetKTS1668-04aPDF
Package Outline DrawingWLCSP34-12 AY PODPDF

Purchase

Part Number Marking OVLO Threshold Operating Temperature Package
KTS1668EAY-TR KPYWZNAABB 13.75 -40°C to +85°C WLCSP-12
Purchase Options
Buy from Digi-Key
Buy from Mouser