ST STG3684A User Manual

Low voltage 0.5 Ω max dual SPDT switch

Features

■ Ultra low power dissipation:

I

=0.2μA (max.) at TA=85°C

CC

■ Low ON resistance V

–R

–R

■ Wide operating voltage range:

V

■ 4.3 V tolerant and 1.8 V compatible

=0.50Ω (max. TA=25°C)

ON

at V

at V

CC

=4.3V

CC

=0.50Ω (max. TA=25°C)

ON

=3.6V

CC

(OPR) = 1.65 to 4.3 V single supply

threshold on digital control input
at V

■ Latch-up performance exceeds 300 mA

= 2.3 to 4.3 V

CC

(JESD 17)

■ ESD performance:

HMB > 2 kV (MIL STD 883 method 3015)

IN

=0V:

STG3684A

with break-before-make

DFN10L

(2.3x2mm)

QFN10L

(1.8 x 1.4 mm)

Table 1. Device summary

Order code Package Packing

STG3684AUTR

STG3684ADTR

QFN10L

(1.8 x 1.4 mm)

DFN10L

(2.3 x 2 mm)

Tape and reel

Tape and reel

February 2011 Doc ID 11481 Rev 7 1/29

www.st.com

1

Contents STG3684A

Contents

1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Input equivalent circuit and truth table . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2/29 Doc ID 11481 Rev 7

STG3684A List of tables

List of tables

Table 1. Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Table 2. Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 3. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 4. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 5. Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 6. DC specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 7. AC electrical characteristics (C
Table 8. Analog switch characteristics (C

Table 9. QFN10L (1.8 x 1.4 mm) mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 10. DFN10L (2 x 2.3 mm) mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 11. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

=35pF, RL=50Ω, tr=tf≤ 6 ns). . . . . . . . . . . . . . . . . . . 11

L

=5pF, RL=50Ω, TA= 25 °C) . . . . . . . . . . . . . . . . . . . 12

L

Doc ID 11481 Rev 7 3/29

List of figures STG3684A

List of figures

Figure 1. Pin connection (top through view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 2. Input equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 3. ON resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 4. OFF leakage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 5. OFF isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 6. Bandwidth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 7. Channel-to-channel crosstalk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 8. Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 9. Break-before-make time delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 10. Charge injection (V

Figure 11. Turn-on, turn-off delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 12. QFN10L (1.8 x 1.4 mm) package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 13. QFN10L (1.8 x 1.4 mm) footprint recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 14. QFN10L (1.8 x 1.4 mm) carrier type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 15. QFN10L (1.8 x 1.4 mm) reel information - back view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 16. QFN10L (1.8 x 1.4 mm) reel information - front side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 17. DFN10L (2 x 2.3 mm) package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 18. DFN10L (2 x 2.3 mm) carrier type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 19. DFN10L (2 x 2.3 mm) reel information - back view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 20. DFN10L (2 x 2.3 mm) reel information - front side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

GEN

=0V, R

=0Ω, RL=1MΩ, CL= 100 pF) . . . . . . . . . . . . . . . . 17

GEN

4/29 Doc ID 11481 Rev 7

STG3684A Description

1 Description

The STG3684A is a high-speed CMOS dual analog SPDT (single-pole dual-throw) switch or
dual 2:1 multiplexer/demultiplexer bus switch fabricated using silicon gate C
technology. Designed to operate from 1.65 to 4.3 V, this device is ideal for portable
applications.
It offers very low ON resistance (R
control the independent channel switches nS1 and nS2. The switches nS1 are ON
(connected to common ports Dn) when the nIN input is held high and OFF (state of high
impedance exists between the two ports) when nIN is held low. The switches nS2 are ON
(connected to common ports Dn) when the nIN input is held low and OFF (state of high
impedance exists between the two ports) when IN is held high. 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 and excess transient voltage immunity.

<0.5Ω) at VCC= 3.6 V. The nIN inputs are provided to

ON

2

MOS

Doc ID 11481 Rev 7 5/29

Pin settings STG3684A

2 Pin settings

2.1 Pin connection

Figure 1. Pin connection (top through view)

D1

1IN

9

1S2

1S1

1

2

10

8

GND

7

2S1

V

1S2

CC

1IN

1S1

D1

V

CC

3

QFN10L (1.8 x 1.4 mm)

1

2

3

4

5

DFN10L (2.3 x 2 mm)

4

2IN

5

D2

6

2S2

10

2S2

9

D2

8

2S1

7

2IN

6

GND

6/29 Doc ID 11481 Rev 7

STG3684A Pin settings

2.2 Pin description

Table 2. Pin description

Pin number

Symbol Name and function

QFN10L DFN10L

1 5 1S2 Independent channel

2 3 1S1 Independent channel

31 V

CC

Positive voltage supply

4 7 2IN Control

5 9 D2 Common channel

6 10 2S2 Independent channel

7 8 2S1 Independent channel

8 6 GND Ground (0 V)

9 2 1IN Control

10 4 D1 Common channel

Note: Exposed pad must be soldered to a floating plane. Do NOT connect to power or ground.

Doc ID 11481 Rev 7 7/29

Input equivalent circuit and truth table STG3684A

3 Input equivalent circuit and truth table

Figure 2. Input equivalent circuit

Table 3. Truth table

IN Switch S1 Switch S2

HONOFF

LOFF

(1)

(1)

ON

1. High impedance.

8/29 Doc ID 11481 Rev 7

STG3684A Maximum rating

4 Maximum rating

Stressing the device above the rating listed in the “Absolute maximum ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.

Table 4. Absolute maximum ratings

Symbol Parameter Value Unit

I

CC

I

T

V

V

V

I

I

I

GND

P

Supply voltage -0.5 to 5.5 V

CC

V

DC input voltage -0.5 to VCC + 0.5 V

I

DC control input voltage -0.5 to 5.5 V

IC

DC output voltage -0.5 to VCC + 0.5 V

O

DC input diode current on control pin (VIN<0V) -50 mA

IKC

I

DC Input diode current (VIN<0V) ±50 mA

IK

DC output diode current ±20 mA

OK

I

DC output current ±300 mA

O

DC output current peak (pulse at 1 ms, 10% duty cycle) ±500 mA

OP

or

DC VCC or ground current ±100 mA

Power dissipation at TA= 70 °C 1120 mW

D

Storage temperature -65 to 150 °C

STG

T

Lead temperature (10 sec) 300 °C

L

Recommended operating conditions

Table 5. Recommended operating conditions

Symbol Parameter Value Unit

V

V

V

T

dt/dv

Supply voltage 1.65 to 4.3 V

CC

V

Input voltage 0 to V

I

Control input voltage 0 to 4.3 V

IC

Output voltage 0 to V

O

Operating temperature -40 to 85 °C

op

V

= 1.65 to 2.7 V 0 to 20

Input rise and fall time control
input

CC

V

= 3.0 to 4.3 V 0 to 10

CC

CC

CC

V

V

ns/V

Doc ID 11481 Rev 7 9/29