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KTU1001
August 2020 - Revision 04 c Page 1 Company Confidential
Features
• Operating Range: 2.7V to 5.5V
• For USB D+/D- Hi-Speed or SBU1/2 signals
• USB Hi-Speed Dual SPDT Switch/MUX
Reverse blocking back-to-back MOSFETs
>1GHz -3db Bandwidth
Low 6Ω Switch On-Resistance
Typical 4.0pF Switch On-Capacitance
• Overvoltage Protection
Up to +20VDC
Surge Protection Up to +25V
• FLAG
open drain output overvoltage indicator
• EN
to disable switch output
• WLCSP34-12 package (1.17mm x 1.57mm)
• -40°C to +85°C Temperature Range
Applications
• Smartphones
• USB Type-C
• Mobile Internet Devices
• Tablet Computers
• Peripherals
Brief Description
The KTU1001 is a Hi-Speed (up to 480Mbps) USB dual
SPDT (single-pole/double-throw) switch with overvoltage
protection. This device operates over a 2.7V to 5.5V input
supply range with over voltage fault protection up to 20V.
USB Type-C features high voltage charging where the
KTU1001 protects USB data lines from short circuit and
surge events that can permanently damage the mobile
system. The device features independent control bits for
each switch pair and an on/off enable (EN
) for shutdown
mode. Additional features include low switch on resistance
and capacitance along with a fault flag (FLAG
) to alert the
system processor to overvoltage fault events.
Similar in features and performance to KTU1000, the
KTU1001 adds reverse blocking MOSFET switch
functionality.
The KTU1001 has low power consumption and is available
in an ultra-small 12-Bump 1.17mm x 1.57mm WLCSP
package making it an ideal solution for USB interface
switching and protection in mobile applications.
Typical Application
KTU1001
D+/D−
Switches
Interface
Logic
COM1
COM2
USB
PORT
VBUS
D+
D−
NC2
NO1
NO2
EN
CB1
CB2
FLAG
Applications
Processor
USB XCVR 1
USB XCVR 2
VCC
NC1
SYSTEM
USB D+/D- Hi-Speed or SBU1/2 Switch with Fault Protection
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KTU1001
August 2020 - Revision 04 c Page 2 Company Confidential
Pin Descriptions
Pin #
Name
Function
A1
CB1
Digital Control Input 1
A2
COM2
Common Terminal for I/O Switch 1 (Connect to D+, D-, SBU1 or SBU2)
A3
COM1
Common Terminal for I/O Switch 2 (Connect to D-, D+, SBU1 or SBU2)
A4
FLAG
Active low fault flag output signal to alert fault event
B1
VCC
Input Supply Voltage input pin
B2
CB2
Digital Control Input 2
B3
GND
Ground. Connect this pin to system ground.
B4
EN
Active low enable input. Drive EN to a logic high level to disable the device and
place switches to a high impedance state.
C1
NO2
Normally Open Terminal for USB I/O Switch 2
C2
NO1
Normally Open Terminal for USB I/O Switch 1
C3
NC2
Normally Closed Terminal for USB I/O Switch 2
C4
NC1
Normally Closed Terminal for USB I/O Switch 1
WLCSP34-12
12-Bump 1.17mm x 1.57mm x 0.62mm
WLCSP Package
Top Mark
WW = Device ID Code,
XX = Date Code, YY = Assembly Code,
ZZZZ = Serial Number
TOP VIEW TOP VIEW
WW
XXYY
ZZZZ
C
B
A
1 2 3
CB1
VCC
NO2
COM2
CB2
NO1
COM1
GND
NC2
FLAG
EN
NC1
4
WLCSP-12 (1.17x1.57x0.62mm)