Features

• Wide Input voltage range: 2.5V to 40V
• Up to 4.5A current capability
• Integrated 26mΩ (typ) N-Channel MOSFET
• Fast OVP turn-off response time: 100ns
• Selectable trip-point options
 Fixed 5.95V
 Fixed 10.2V
 Fixed 13.5V
 Adj. 4V to 28V
• Auto-enabled switch with 18ms debounce time
• Under voltage (UVLO), Short-circuit and thermal
shutdown protection
• VDET output to indicate the presence of VBUS
• ESD Protection
 Human Body Model: ±2.0kV
• Pb-free WLCSP-12 package
• -40°C to +85°C Temperature Range

Applications

• Smartphones
• Mobile Internet Devices
• Tablet Computers
• Peripherals

Brief Description

The KTS1662 overvoltage protection device features an
ultra-low 26mΩ (typical) on-resistance high current
integrated MOSFET which actively protects low-voltage
systems from voltage supply faults up to +40V.
An input voltage exceeding the overvoltage threshold will
cause the internal MOSFET to turn off, preventing
excessive voltage from damaging downstream devices.
The KTS1662 offers three different fixed OVP options, plus
a fully adjustable option. When the OVLO input is
connected to GND, the KTS1662 automatically chooses
the internal fixed OVLO threshold, preset to 5.95V (typical).
Allowing OVLO to float, gives a preset of 10.2V (typical)
and connecting a resistor to GND between 30kΩ and 80kΩ
gives a preset of 13.5V (typical) The overvoltage protection
threshold can also be fully adjusted with an optional
external resistor divider to a voltage between 4V and 28V.
The KTS1662 features a VDET output to indicate the
presence of a voltage at VBUS and is independent of the
OVP switch. In case the device temperature exceeds the
maximum junction temperature, the device switches off.
The KTS1662 is available in a RoHS and Green compliant
12-Bump 1.28 x 1.94 x 0.062mm WLCSP.