4 Amp Over-Voltage Protection IC with Sense Output
Description
The KTS1668 over-voltage protection (OVP) device features an ultra-low 38mΩ (typical) on-resistance high current integrated MOSFET which actively protects low-voltage systems from voltage supply faults up to +28VDC. 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 is set below the external OVLO select voltage, the KTS1668 automatically chooses the internal fixed OVLO threshold, preset to 13.75V (typical). The overvoltage protection threshold can be adjusted with an optional resistor divider to a voltage between 4V and 22V.
The device features a microphone mode which disables the OVP switch and allows the microphone signal present on the input to be output at VDET pin without an additional multiplexer circuit. The KTS1668 is protected against overcurrent faults by an internal over-temperature protection shutdown feature.
The KTS1668 is available in a RoHS and Green compliant 12-Bump 1.288mm x 1.988mm x 0.64mm WLCSP.
Features
- Wide Input voltage range: 2.3V to 30V
- Up to 4A Continuous current capability
- Integrated 38mΩ (typ) N-Channel MOSFET
- Wide Over-Voltage threshold range
- Fixed internal: 13.75V
- Fast OVP response time: 0.1µs (typ.)
- Internal 15ms Startup Debounce
- Integrated Surge Protection up to 100V
- Low Quiescent Current: 70µA (typ.)
- Thermal Shutdown and Short Circuit Protection
- Compliance to IEC61000-4-2 (Level 4)
- Contact: ±8kV
- Air Gap: ±15kV
- ESD Protection
- Human Body Model: ±2kV
- Pb-free Package: 12-Bump WLCSP
- -40°C to +85°C Temperature Range
Applications
- Smartphones
- Tablet
- Mobile Internet Devices
- Peripherals
Packaging Information
| Package | Dimensions | Bumps | Package Code |
| WLCSP34-12 | 1.288mm x 1.988mm x 0.64mm | 12 | AY |
Parameters
| Vin (min) | Vin (max) | ON Resistance | Max Current (A) | OVP Trip Point | Package |
| 2.3V | 28V | 38mΩ | 4.0 | Fixed 13.75 | WLCSP34-12 |
Technical Documentation
| Description | Documents | Type |
|---|---|---|
| Datasheet | KTS1668-04a | |
| Package Outline Drawing | WLCSP34-12 AY POD |
Purchase
| Purchase Options |
|---|
| Buy from Digi-Key |
| Buy from Mouser |
