FSUSB45 datasheet(2/12 Pages) ONSEMI

2 / 12 page

July 2013

www.fairchildsemi.com

FSUSB45 • Rev. 1.0.7

FSUSB45

— High-Speed USB2.0 (480Mbps) Switch

with Dedicated Charger Port Detect

Features

 Low On Capacitance: 7.0 pF Typical

 Low On Resistance: 3.9 Ω Typical

 Low Power Consumption: 1 μA Maximum

- 15 μA Maximum ICCT over an Expanded Voltage

Range (VIN=1.8 V, VCC=4.3 V)

 Wide -3 db Bandwidth: > 720 MHz

 Packaged in:

- 10-Lead MicroPak™ (1.6 x 2.1 mm)

- 10-Lead UMLP (1.4 x 1.8 mm)

 8 kV ESD Rating, >16 kV Power/GND ESD Rating

 Power-Off Protection on All Ports When V

CC=0 V

- D+/D- Pins Tolerate up to 5.25 V

Applications

 Cell Phone, PDA, Digital Camera, and Notebook

 LCD Monitor, TV, and Set-Top Box

IMPORTANT NOTE:

For additional performance information, please contact

analogswitch@fairchildsemi.com.

Description

The FSUSB45 is a bi-directional, low-power, two-port,

High-Speed, USB2.0 switch. Configured as a double-

pole, double-throw (DPDT) switch, it is optimized for

switching between two HS (480 Mbps) sources or an

HS source and a Full-Speed (12 Mbps) source.

The FSUSB45 is compatible with the requirements of

USB2.0 and features an extremely low on capacitance

(CON) of 7.0 pF. The wide bandwidth of this device

(720 MHz) exceeds the bandwidth needed to pass the

third harmonic, resulting in signals with minimum edge

and

phase

distortion.

Superior

channel-to-channel

crosstalk also minimizes interference.

The FSUSB45 contains special circuitry on the switch

I/O pins for applications where the VCC supply is

powered-off (VCC=0), which allows the device to

withstand an over-voltage condition. This device is

designed to minimize current consumption even when

the control voltage applied to the SEL pin is lower than

the supply voltage (VCC). This feature is especially

valuable to mobile applications, such as cell phones,

allowing for direct interface with the general-purpose

I/Os of the baseband processor. An additional feature is

the detection of the 1,1 state on D+/D- to signal an

interrupt (INT) to the processor when entering a

dedicated charging port mode of operation.

HSD1+

HSD2+

HSD1-

HSD2-

D+

D-

INT

Sel

Figure 1. Analog Symbol

Ordering Information

Part Number

Top Mark

Operating

Temperature Range

Package

FSUSB45L10X

-40 to +85°C

10-Lead,

MicroPak™ 1.6 x 2.1 mm, JEDEC MO-255B

FSUSB45UMX

-40 to +85°C

10-Lead, Quad, Ultrathin Molded Leadless Package

(UMLP), 1.4 x 1.8 mm

MicroPak™ is a trademark of Fairchild Semiconductor Corporation.

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