STG3220 datasheet(1/23 Pages) STMICROELECTRONICS

Part #	STG3220

Description	Low voltage high bandwidth dual SPDT switch

PDF	23 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 23 page

May 2009

Doc ID 15647 Rev 1

1/23

23

STG3220

Low voltage high bandwidth dual SPDT switch

Features

■ Ultra low power dissipation:

–ICC = 1 μA (max.) at TA = 85 °C

■ Low "ON" resistance:

–RON = 4.8 Ω (TA = 25 ºC) at VCC = 4.3 V

–RON = 5.9 Ω (TA = 25 ºC) at VCC = 3.0 V

■ Wide operating voltage range:

–VCC (opr) = 1.65 V to 4.3 V

■ 4.3 V tolerant and 1.8 V compatible threshold

on digital control input at VCC = 2.3 V to 3.0 V

■ Typical bandwidth (-3 dB) at 800 MHz on all

channels

■ USB (2.0) high speed (480 Mbps) signal

switching compliant

■ Integrated fail safe function

■ Interrupt function to indicate to the processor

that the device is in dedicated port charging

mode

■ Latch-up performance exceeds 500 mA per

JESD 78, Class II

■ ESD performance exceeds JESD22:

– Dn pins: 4000-V human body model

(A114-A)

– All other pins: 2000-V human body model

(A114-A)

Applications

■ Mobile phones

Description

The STG3220 is a high-speed CMOS low voltage

dual analog SPDT (single pole dual throw) switch

or 2:1 multiplexer/de-multiplexer switch fabricated

in silicon gate C2MOS technology. It is designed

to operate from 1.65 V to 4.3 V, making this

device ideal for portable applications.

The SEL input is provided to control the switch.

The switch nS1 is ON (connected to common

ports Dn) when the SEL input is held high and

OFF (high impedance state exists between the

two ports) when SEL is held low; the switch nS2 is

ON (it is connected to common port Dn) when the

SEL input is held low and OFF (high impedance

state exists between the two ports) when SEL is

held high. STG3220 has an integrated fail safe

function to withstand over-voltage condition when

the device is powered off.

The STG3220 also has an interrupt pin which

sends a signal to the processor when the device

is in dedicated port charging mode. Additional key

features are fast switching speed, break-before-

make-delay time and ultra low power

consumption. All inputs and outputs are equipped

with protection circuits against static discharge,

giving them ESD immunity and transient excess

voltage.

QFN10

(1.8 x 1.4 mm)

Table 1.

Device summary

Order code

Package

Packaging

STG3220QTR

QFN10 (1.8 x 1.4 mm)

Tape and reel

www.st.com

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