6ARMS VBUS ISINK Load Switch for 28V EPR Systems
Description
The KTS1898 is a USB VBUS safety management load switch for up to 165W current-sink input for 28V EPR systems. The input operating range is 3V to 32V with input/output withstand up to 35VDC. Ultra-fast overvoltage protection (OVP) is internally set to 33V, but optionally adjusted via external resistors. Low on-resistance minimizes heat and voltage droop. Reverse-current protection (RCP) acts as a 20mV “ideal diode” with fast recovery.
Additional safety management includes ultra-fast over-current protection (OCP), short-circuit protection (SCP) during and after soft-start, over-temperature protection (OTP), and an integrated transient voltage suppressor (TVS) for IEC industry standard ±30kV ESD and ±100V surge ratings.
The KTS1898 is packaged in advanced, fully “green” compliant, 2.56mm x 2.56mm, 25-bump Wafer-Level
Chip-Scale Package (WLCSP).


Features
- 3V to 32V Operating Voltage Range
- 35VDC Abs. Max. Rating at IN and OUT
- 6A Continuous Current Rating
- 24mΩ typ. On-Resistance from IN to OUT
- Soft-Start (SS) Limits Inrush Current
- Over-Voltage Protection (OVP) at IN
- 33V, 100ns Internally Fixed
- 4V to 33V External Resistor Programmable
- “Ideal Diode” Reverse-Current Protection (RCP)
- VF = 20mV and 15µs Fast Recovery
- Short-Circuit Protection (SCP) during & after SS
- 12A, 150ns Over-Current Protection (OCP)
- Over-Temperature Protection (OTP)
- Transient Voltage Suppression (TVS) at IN
- ±100V Surge Protection (IEC61000-4-5)
- ±30kV ESD Contact Discharge (IEC61000-4-2)
- ±30kV ESD Air Gap Discharge (IEC61000-4-2)
- EN (KTS1898A) or EN (KTS1898B) Enable Logic
- Hiccup Mode Auto-Retry after Faults
- ACOK Open-Drain Output Flag
- -40°C to 85°C Operating Temperature Range
- 25-bump WLCSP 2.56 x 2.56mm (0.5mm pitch)
Applications
- Notebooks, Gaming PCs
- Mini Desktop PCs, Docking Stations, Monitors
Packaging Information
Package | Dimensions | Bumps | Package Code | Package Outline Drawing |
WLCSP55-25 | 2.560mm x 2.560mm x 0.555mm | 25 | OAE |
Parameters
Vin (min) | Vin (max) | Surge (V) | RON (mΩ) | IMAX (A) | RBP | RCP | OCP | OVP Adj. |
3V | 32V | ±100 | 25 | 5.0 | Yes | Yes | Yes | 4V~31V |
Technical Documentation
Description | Documents | Type |
---|---|---|
Datasheet | KTS1898-04b | |
Package Outline Drawing | WLCSP55-25 OAE POD |
Purchase
Part Number | Marking | Operating Temperature | Package |
KTS1898AEOAE-TA | SLXXYYZZZZ | -40°C to +85°C | WLCSP-25 |
KTS1898BEOAE-TA* | RRXXYYZZZZ | -40°C to +85°C | WLCSP-25 |
* Future device; contact an authorized Kinetic Technologies representative for availability.
Purchase Options Coming Soon