First ±200V Surge Rated Overvoltage Protection IC

Design engineers across the consumer and industrial electronics markets can better protect their system designs with the KTS1656, the latest addition to the Kinetic Technologies overvoltage port protection portfolio. This new, surge-protected, single input, dual output overvoltage-protected load switch dramatically raises the USB port VBUS protection level against all competing products by doubling the surge voltage protection and protecting against reverse voltage conditions.

"System safety has become a critical issue, especially for consumer products like mobile phones and tablets. Design engineers want to provide the maximum protection during a potentially catastrophic fault condition," says Kinetic Technologies Senior Director of Marketing Erik Ogren.

"Using the KTS1656 provides a 'behind the port' solution that quietly protects downstream system components, while maintaining a seamless user experience,” Ogren added.

The KTS1656 input is rated for a dc input voltage up to +28V and is IEC61000-4-5 surge rated at greater than ±200V for unparalleled protection against power grid spikes. Two reverse-blocking load switches with extremely low resistance switch the input voltage to one of the two outputs.

The VBUS to VOUT resistance is typically 20mOhm and is rated to 3.5A, while the VBUS to VSYS resistance is typically 35mOhm and rated to 6A. The KTS1656 features a flexible control interface, VBUS active discharge, a SYS output fault flag and an LDO output.

The KTS1656 minimizes the risk of equipment failure and keeps systems safe with overvoltage and surge protection. Key applications for this solution include smartphones, tablets, mobile devices, wearables and industrial equipment.

Typical application diagram. (click on diagram to enlarge)

Summary of 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: 2.75V-13.2V
  • VBUS Abs Max: Up 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
• LDO Output
• Over Temperature Protection
• -40°C to +85°C Temperature Range

The KTS1656 is available and shipping now.