Surge Protected, Single Input, Dual Output Load Switch with OVP

Description

The KTS1656 features two low resistance power switches configured as single input, dual output, change-over switch. The input to both switches is protected against VBUS surge voltages of up to ±200V, and is also protected against over-voltage, with preset trip points on both the VBUS-to-VOUT and VBUS-to-SYS paths, providing protection to downstream components from abnormal input conditions.

The main switch (VBUS-to-VOUT) is an active-LOW enabled, reverse-blocking 3.5A rated MOSFET, with an OVP trip point of 13.9V. The secondary switch (VBUS-toSYS) is an active-HIGH enabled, reverse-blocking, 6.0A rated MOSFET, with an OVP trip point of 5.25V. The VBUS input is rated from -6V to 28V. When VBUS is greater than 2.5V typ, the LDO output provides an “always ON” power source, regardless of the OVLO, EN1 and EN2 state, to power downstream components, thereby permitting operation without an installed battery.

The KTS1656 also features an active-HIGH SHDN pin to conserve power and an over-temperature thermal protection.

The KTS1656 is packaged in advanced, fully “green” compliant, 2.71 x 3.01mm, Wafer-Level Chip-Scale Package (WLCSP).

Features

  • Single Input, Dual Output Low-RON Switch
    • VBUS to VOUT: typ <20mΩ
    • VBUS to SYS: typ <35mΩ
    • Reverse Blocking on Both Switch Paths
  • Wide Input Voltage Range: 2.7V-13.2V
    • VBUS Abs Max: -6V to 28V
  • Surge Protected VBUS
    • IEC61000-4-5: > ±200V
  • ESD Protection
    • IEC61000-4-2(Level 4) VBUS
    • Contact: > ±8kV
    • Air Gap: > ±15kV
    • HBM: 2kV All Pins
  • Integrated Overvoltage Protection (OVP)
    • VBUS to VOUT: 13.8V
    • VBUS to SYS: 5.3V
  • Maximum Continuous Current
    • VBUS to VOUT: 3.5A
    • VBUS to SYS: 6A
  • OTG Compatible Power-Up
  • Dual Enable Control with Independent Shutdown Control
    • Active LOW VBUS to VOUT
    • Active HIGH VBUS to SYS
    • Active HIGH Shutdown
  • VBUS detection LDO
  • VBUS to SYS FLAG
  • VBUS Active Discharge Control Input
  • Over Temperature Protection
  • -40°C to +85°C Temperature Range

Applications

  • Smartphone and Tablets
  • Mobile Internet Devices
  • Wearables and other Portable Devices

Packaging Information

Package Dimensions Bumps Package Code
WLCSP42 2.71mm x 3.01mm x 0.62mm WLCSP

Technical Documentation

Description Documents Type
DatasheetKTS1656-04aPDF
Package Outline DrawingWLCSP67-42 UY PODPDF

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