Description

KTS1691 is a low-resistance, high-current load switch with soft-start, over-voltage protection, reverse-current blocking, over-current protection, short-circuit protection, over-temperature protection. It is optimized to protect systems with USB Type-C PD ports and barrel connectors that sink up to 140W at 20V and must withstand up to 29V on VBUS. KTS1691A/B has automatic reverse-current blocking feature which acts as an “ideal diode” and isolates VBUS when charging or powering the system via another port. KTS1691C/D supports bi-directional mode when turning on. Soft-start limits inrush current when turning on with large capacitors at the output. An ACOK flag indicates when power is good. KTS1691 is packaged in advanced, fully “green” compliant, 2.86 x 1.68mm, 15-bump Wafer-Level Chip-Scale Package (WLCSP).

Part Number Marking1 Enable Polarity Switch Mode Operating Temperature Package
KTS1691AEDAE-TA2 UAYWZNAABB EN Unidirectional with RCP -40°C to +85°C WLCSP-15
KTS1691BEDAE-TA UMYWZNAABB EN Unidirectional with RCP -40°C to +85°C WLCSP-15
KTS1691CEDAE-TA UBYWZNAABB EN Bi-directional without RCP -40°C to +85°C WLCSP-15
KTS1691DEDAE-TA UNYWZNAABB EN Bi-directional without RCP -40°C to +85°C WLCSP-15

1. UA or UM or UB or UN = Device Code, YW = Date Code, Z = Serial Number, N = Wafer ID, AABB = Axis Coordinates.
2. Future version – consult Kinetic Technologies authorized representative for availability.

Features

  • 3V to 24V Operating Voltage Range
  • 29V Abs. Max. Rating at IN and OUT
  • 7A Continuous Current Rating
    • 18A Pulse Current Rating (duration Pd limited)
  • 14.5mΩ typ. On-Resistance from IN to OUT
  • Soft-Start (SS) Limits Inrush Current
  • Over-Voltage Protection (OVP) at IN
    • 24V Internally Fixed
    • 4V to 24V External Resistor Programmable
  • “Ideal Diode” Reverse Current Protection (RCP, KTS1691A/B only)
    • 20mV Forward Voltage and 15µs Fast Recovery
  • Bi-directional Mode when enabled (KTS1691C/D only)
  • Over-Current Protection (OCP) at OUT
  • Short-Circuit Protection (SCP) at OUT
  • Over-Temperature Protection (OTP)
  • Auto-Retry after All Faults
  • EN or EN Enable Logic Input Versions
  • ACOK Open-Drain Power Good Flag
  • -40°C to 85°C Operating Temperature Range
  • 15-bump WLCSP 2.86 x 1.68mm (0.5mm pitch)

Applications

  • Desktop, Notebooks, Netbooks, Ultra-Books, Tablets
  • Docking Stations, Monitors, Accessories

Packaging Information

Package Dimensions Package Code
WLCSP53-15 2.86mm x 1.68mm x 0.56mm DAE

Parameters

Vin (min) Vin (max) ON Resistance (mΩ) Max Current (A) OVP Trip Point (V) OVP Turn Off Response Time (ns) IEC 61000-4-2 ESD (Air Discharge) IEC 61000-4-2 ESD (Contact Discharge)
3V 24V 14.5 7 Fixed 24V
Adj 4~24V		 90 NA NA

Technical Documentation

Description Documents Type
DatasheetKTS1691-04bPDF
Package Outline DrawingWLCSP53-15 DAE PODPDF

Purchase

Purchase Options
Buy from Digi-Key
Buy from Mouser