Texas Instruments SN65240P, SN65240PW, SN65240PWR, SN65220DBVR, SN65220DBVT Datasheet

SN65220, SN65240, SN75240

SINGLE AND DUAL UNIVERSAL SERIAL BUS PORT

TRANSIENT SUPPRESSORS

SLLS266C – FEBRUARY 1997 – REVISED MARCH 2000

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D

Design to Protect Submicron 3-V or 5-V

Silicon from Noise Transients

D

Applicable to Two High- or Low-Speed

Universal Serial Bus (USB) Host, Hub, or

Peripheral Ports

D

Port ESD Protection Capability Exceeds:

– 15-kV Human Body Model

– 2-kV Machine Model

D

Low Current Leakage ...1 µA Max

D

Stand-Off Voltage . . . 6.0 V Min

D

Low Capacitance . . . 35 pF Typ

description

The SN65220 is a single transient voltage

suppressor and the SN75240 and SN65240 are

dual transient voltage suppressors designed to

provide additional electrical noise transient

protection to two USB ports. Any cabled I/O can

be subjected to electrical noise transients from

various sources. These noise transients can

cause damage to the USB transceiver and/or the

USB ASIC if they are of sufficient magnitude and

duration. The USB ports are typically implement-

ed in 3-V or 5-V digital CMOS with very limited

ESD protection. The SN65220, SN75240, and

SN65240 can significantly increase the port ESD

protection level and reduce the risk of damage to

the large and expensive circuits of the USB port.

The SN75240 is characterized for operation from

0°C to 70°C. The SN65220 and SN65240 are

characterized for operation from –40°C to 85°C.

IEC1000-4-2 ESD performance is measured at

the system level and system design influences the

results of these tests. A high compliance level may

be attained with proper system design.

IEC1000-4-2 Compliance T est Levels

MAXIMUM TEST VOLTAGE

IEC1000

-

4

-

2

COMPLIANCE

LEVEL

CONTACT

DISCHARGE

(kV)

AIR

DISCHARGE

(kV)

1 2 2

2 4 4

3 6 8

4 8 15

Copyright  2000, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

schematic

A or C

GND

B or D

(One Suppressor Shown)

NOTE A: All four GND terminals should be connected to ground.

3

2

4

6

(TOP VIEW)

1

NC

GND

NC

A

B

SN65220

(Marked as SADI)

DBV PACKAGE

GND

5

NC – No internal connection

1

2

3

4

8

7

6

5

GND

C

GND

D

A

GND

B

GND

SN65240, SN75240

(Marked as A65240 or A75240)

P OR PW PACKAGE

(TOP VIEW)

NOTE A: Typical current versus voltage curve was derived

using the IEC 1.2/50-µs surge waveform.

CURRENT

vs

VOLTAGE

–2.5

–5

–7.5

–10

–10 0

0

2.5

5

10

20 30

Voltage – V

Current – A

–20–30 40

7.5

SN65220, SN65240, SN75240

SINGLE AND DUAL UNIVERSAL SERIAL BUS PORT

TRANSIENT SUPPRESSORS

SLLS266C – FEBRUARY 1997 – REVISED MARCH 2000

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

†

Continuous total power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrostatic discharge Class 3, A:15 kV, B: 2 kV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Peak power dissipation, P

D(peak)

60 W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Peak forward surge current, I

FSM

3 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Peak reverse surge current, I

RSM

–9 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

stg

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

DISSIPATION RATING TABLE

PACKAGE

T

A

≤ 25°C

POWER RATING

DERATING FACTOR

ABOVE T

A

= 25°C

T

A

= 70°C

POWER RATING

T

A

= 85°C

POWER RATING

DBV 385 mW 3.1 mW/°C 246 mW 200 mW

P 1150 mW 9.2 mW/°C 736 mW 598 mW

PW 520 mW 4.2 mW/°C 331 mW 268 mW

‡

This is the inverse of the junction-to-ambient thermal resistance when board-mounted and with no air flow.

recommended operating conditions

MIN MAX UNIT

p

p

SN65240, SN65220 –40 85

°

Operating

free

-

air

temperat

u

re

,

T

A

SN75240 0 70

°C

electrical characteristics over recommended operating conditions (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

I

lkg

Leakage current V

I

= 6 V at A, B, C, or D terminals 1 µA

V

(BR)

Breakdown voltage V

I

= 1 mA at A, B, C, or D terminals 7 V

APPLICATION INFORMATION

GND

15 kΩ

15 kΩ

27 Ω

27 Ω

GND

SN65220 or

1/2 SNx5240

A

B

D+

D–

Full-Speed or

Low-Speed USB

Host-or-Hub Port

Transceiver

1.5 kΩ

(Low Speed

Only)

27 Ω

27 Ω

SN65220 or

1/2 SNx5240

A

B

D+

D–

Full-Speed or

Low-Speed USB

Down Stream

Transceiver

1.5 kΩ

(Full Speed Only)

Figure 1. Typical USB Application