KTS1675 Overvoltage Protector with Bidirectional Blocking and Surge Protection Features Brief Description Wide Input voltage range: 3.0V to +28V The KTS1675 over-voltage protection device features high Integrated MOSFET switch 20m typical current integrated N-Channel MOSFETs with an ultra-low 5A Continuous Current IN to OUT on-resistance of 20m (typical). Low-voltage VP Select pin systems on the output are protected from voltage supply Over-Voltage threshold trip 13V/17V faults up to +28V. An internal clamp on the input protects VSNS clamp 16V/20V max the device from surges up to 100V. Fast Over-Voltage response time 100ns An input voltage exceeding the over-voltage threshold Low Quiescent Current: 160A (typ.) causes the internal MOSFETs to turn off, preventing Integrated Protection excessive voltage from damaging downstream devices. Thermal Shutdown Under voltage protection (UVLO) The KTS1675 has a selectable internal fixed OVLO Soft-Start threshold preset to either 13V or 17V (typical) and also OUT to IN Reverse Blocking supports reverse bias blocking, preventing any voltage EN, VSNS, WRX and FLAG pins present at OUT pin feeding back into IN when the device is Integrated Surge Protection up to +/-100V in the Off state. The KTS1675 also provides a selectable, Pb-free WLCSP 20-Bump, 0.4mm pitch always ON, clamped output voltage of 16V or 20V max. -40C to +85C Temperature Range The KTS1675 also features additional protection including enhanced ESD and thermal to protect against over-load conditions. Applications The device is available in a RoHS and Green compliant 20-bump, 0.4mm pitch, 2.22mm x 1.82mm WLCSP. Smartphones and Tablets Mobile Internet Devices Peripherals Typical Application Wireless Receiver V V IN OUT IN OUT Battery Adapter/USB Battery Charger C C IN OUT 1F 10F KTS1675 WRX Wireless Receiver Enable Pin EN Application FLAG Processor VP VSNS GND 0.1F August 2020 - Revision 04e Page 1 Company Confidential WW XXYY ZZZZ KTS1675 Pin Descriptions Pin Slave or Pin Name Function Type Autonomous A1, A2, A3, A4, IN Power Both Load switch input pin. A5, B1, B2, B3 C1, C2, D1, D2, OUT Power Both Load switch output pin. D3 Wireless receiver (WRx) active low logic enable pin. Digital Slave mode: Pull this pin logic low or Pull this pin to GND. D5 Autonomous WRX I/O Autonomous mode: Connect this pin to WRx active low enable pin, if a system output control pin is not available. Active low logic enable pin. When EN high, the switch is turned off. Digital D4 EN Slave Slave mode: Connect this pin to System enable logic pin or tie to Input external GND plane. Autonomous: Pull this pin logic low or tie to external GND. B4, B5 GND Power Both Ground pin. FLAG pin is pulled high to indicate to the system when OTG mode can be triggered in autonomous mode. Digital Slave mode: Pull this pin logic low, or tie to external GND. C4 FLAG Autonomous I/O Autonomous mode: Connect to the System digital I/O pin (or equivalent) that pulls logic low to enter OTG mode when IN is connected to an OTG load and a power source is applied to OUT. Analog IN input voltage sense pin with clamping voltage set by VP pin. C5 VSNS Slave Output Slave mode: connect this pin to the battery charger input sense pin. OVP and VSNS selector pin. Connect VP to GND for a typical 17V Digital C3 VP Both OVP and a max. of 20V VSNS. Leave VP floating for a typical 13V Input OVP and a max. of 16V VSNS. WLCSP-20 TOP VIEW TOP VIEW IN IN IN IN IN A IN IN IN GND GND B OUT OUT VP FLAG VSNS C OUT OUT OUT EN WRX D 1 2 3 4 5 WLCSP Package 20-Bump 2.22mm x 1.82mm x 0.62mm Top Mark WW = Device ID Code, XX = Date Code, YY = Assembly Code, ZZZZ = Serial Number August 2020 - Revision 04e Page 2 Company Confidential