High-voltage bidirectional switch with fast over-voltage, reverse-current, and surge protection.
Kinetic Technologies has introduced the KTS1800, a USB VBUS safety management load switch for USB Type-C PD 3.1 Extended Power Range (EPR) applications. The device supports up to 312W in sink mode and 240W in source mode, providing power management and protection for high-power USB devices.
The KTS1800 features a 3V to 55V operating range and withstands input/output voltages up to 59VDC, making it ideal for USB-C EPR notebooks, docking stations, monitors, adapters, and other high-power USB applications. Its ultra-fast 55V over-voltage protection (OVP), reverse-current protection (RCP), and integrated active transient flat-clamp voltage suppression (TVS) provide unmatched system reliability against surges, ESD events, and power fluctuations. The device functions as a Dual Role Power (DRP) port using a single power path dynamically switching between sink- and source-modes. This enables a more robust and space-efficient solution in docking stations and “charger-per-port” notebook computers.
Key product features:
- 3V to 55V Operating Voltage Range
- 59VDC Abs. Max. Rating at VBUS and VSYS
- 6.5ARMS Continuous Current Rating
- 25mΩ typ. On-Resistance from VBUS to VSYS
- 55V, 90ns Over-Voltage Protection (OVP)
- 4V to 55V External Resistor Programmable
- Active Transient Voltage Suppression (TVS) at VBUS
- 48VDC ±130V Surge Protection (IEC61000-4-5)
- ±30kV ESD Contact Discharge (IEC61000-4-2)
- ±30kV ESD Air-Gap Discharge (IEC61000-4-2)
- Soft-Start (SS) Limits Inrush Current
- Short-Circuit Protection (SCP) during & after SS
- 21A, 500ns Over-Current Protection (OCP)
- Current-Limit Protection (CLP) in ISOURCE Mode
- Resistor Adjustable from 0.6 to 5.5A
- “Ideal Diode” Reverse-Current Protection (RCP)
- VF = 20mV and 30µs Fast Recovery
- Diode Direction aligns per ISINK vs. ISOURCE Mode
- Over-Temperature Protection (OTP)
- 3.3V POK Safe LDO
- VBUS Active Discharge Circuit
- FON Logic Input for Fast Role Swap (FRS)
- A/B/C Suffix Versions for EN1/2 ISINK or ISOURCE Logic
- /FLT Output Flag & Hiccup Auto-Retry after Faults
- -40°C to 85°C Operating Temperature Range
- 63-bump WLCSP 4.81 x 3.79mm (0.5mm pitch)
For more information, visit kinet-ic.com
