Features

• Surge and ESD protected Input
 Surge Protection
■ IEC 61000-4-5: >100V
 ESD Protection
■ IEC 61000-4-2 (Level 4)
• Contact: ±8kV
• Air Gap: ±15kV
• Human Body Model ±2kV
• Wide Input voltage range
 2.7V to 30V
• Low Quiescent Current 60μA typ.
• N channel MOSFET load switch with low
forward voltage drop
 140mV @ 1A
• Fast turn-off response time 100ns
• Flexible trip-point options
 Fixed 6.8V
 Adj. 4V to 20V
• Auto-enabled switch with typ. 15ms debounce
time
• Additional Under voltage (UVLO), Short-circuit
and thermal shutdown protection
• Open-drain power good output
• Pb-free WLCSP-9 package
• -40°C to +85°C Temperature Range

Applications

• Smartphones
• Mobile Internet Devices
• Tablet Computers
• Peripherals

Brief Description

The KTS1685 over-voltage protection device features an
ultra-low 140mΩ (typical) on-resistance high current
integrated MOSFET which actively protects low-voltage
systems from voltage supply faults up to +30VDC. 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 set below the external OVLO select
voltage, the KTS1685 automatically chooses the internal
fixed OVLO threshold, preset to 6.8V (typical). The overvoltage
protection threshold can be adjusted with optional
resistor divider to a voltage between 4V and 22V.
The device features an open-drain output ̅A̅̅C̅̅O̅̅̅K̅ indicating
a stable supply between the minimum supply voltage and
OVLO threshold. In case of fault condition and the device
temperature exceeds the maximum junction temperature,
the device switches off.
The KTS1685 is available in a RoHS and Green compliant
9-Bump 1.33 x 1.33mm WLCSP.