KTS1682 4 Amp Over-Voltage Protection IC with Sense Output Features Brief Description Wide Input voltage range: 2.3V to 28V The KTS1682 over-voltage protection (OVP) device Up to 4A Continuous current capability features an ultra-low 38m (typical) on-resistance high Integrated 38m (typ) N-Channel MOSFET current integrated MOSFET which actively protects low- Wide Over-Voltage threshold range voltage systems from voltage supply faults up to +28V . DC Fixed internal: 9.98V An internal clamp protects the device from surges up to Adjustable: 4V to 22V 100V. Fast OVP response time: 0.1s (typ.) An input voltage exceeding the over-voltage threshold will Microphone Mode for audio signal on IN cause the internal MOSFET to turn off, preventing Internal 15ms Startup Debounce excessive voltage from damaging downstream devices. Integrated Surge Protection up to 100V When the OVLO input set below the external OVLO select Low Quiescent Current: 120A (typ.) voltage, the KTS1682 automatically chooses the internal Thermal Shutdown and Short Circuit Protection fixed OVLO threshold, preset to 9.98V (typical). The over- Compliance to IEC61000-4-2 (Level 4) voltage protection threshold can be adjusted with optional Contact: 8kV resistor divider to a voltage between 4V and 22V. Air Gap: 15kV ESD Protection The device features a microphone mode which disables Human Body Model: 2kV the OVP switch and allows the microphone signal present Pb-free Package: 12-Bump WLCSP on the input to be output at VDET pin without an additional -40C to +85C Temperature Range multiplexer circuit. The KTS1682 is protected against over- current faults by an internal over-temperature protection shutdown feature. Applications The KTS1682 is available in a RoHS and Green compliant 12-Bump 1.288mm x 1.988mm x 0.64mm WLCSP Smartphones Tablet Mobile Internet Devices, Peripherals Typical Application Adapter/USB Battery Charger IN OUT IC C OUT C IN 1F KTS1682 R1 1nF PMIC VDET OVLO CTRL Application GND Processor R2 November 2018 Revision 04b Page 1 Company Confidential KTS1682 Pin Descriptions Pin Name Function OUT power path is Enabled when CTRL is logic Low. Microphone Mode is Enabled when logic A1 CTRL High is applied. When IN < CTRL, the CTRL pin is the supply for VDET MOSFET gate bias. Output of internal main high-current power switch. Connect OUT pins together in the PCB for A2, A3, B2 OUT proper operation. A4, B4, C4 GND Ground. Connect GND pins together in the PCB for proper operation. B1 VDET Output from IN pin, with internal protection clamp. VDET can source 1mA. B3, C2, C3 IN Voltage Input. Connect IN pins together in the PCB for proper operation. External OVLO Adjustment. Connect OVLO to GND when using the internal fixed threshold. C1 OVLO Connect a resistor-divider to OVLO to set the adjustable OVLO threshold. The optional external resistor divider is unrelated to the internal threshold. WLCSP-12 TOP VIEW TOP VIEW CTRL OUT OUT GND A XX VDET OUT IN GND B YYZ OVLO IN IN GND C 1 2 3 4 12-Bump 1.288mm x 1.988mm x 0.64mm WLCSP Package Top Mark XX = Device Code YY = Date Code, Z = Assembly Code November 2018 Revision 04b Page 2 Company Confidential