UCLAMP3311PQTCT - SEMTECH - Datasheet.Live

PROTECTION PRODUCTS

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PROTECTION PRODUCTS - MicroClamp®

uClamp3311PQ

Low Voltage µClamp®

for Automotive Applications

Description Features

Dimensions Schematic & PIN Configuration

Revision 7/282011

The µClamp®3311PQ transient voltage suppressor is

specifically designed to protect sensitive components

which are connected to low-voltage data and transmis-

sion lines from overvoltage caused by ESD (electro-

static discharge), CDE (cable discharge events), and

EFT (electrical fast transients). It is rated to Grade 3

of AEC-Q100 for use in automotive applications.

The µClamp®3311PQ is constructed using Semtech’s

proprietary EPD process technology. The EPD process

provides low standoff voltages with significant reduc-

tions in leakage currents and capacitance over silicon-

avalanche diode processes. They feature a true

operating voltage of 3.3 volts for superior protection

when compared to traditional pn junction devices.

The µClamp3311PQ is in an 2-pin SLP1006P2 pack-

age. It measures 1.0 x 0.6 x 0.5mm. The leads are

spaced at a pitch of 0.65mm and are finished with

lead-free NiPdAu. Each device will protect one line

operating at 3.3 volts. It gives the designer the flexibil-

ity to protect single lines in applications where arrays

are not practical. They may be used to meet the ESD

immunity requirements of IEC 61000-4-2. The combi-

nation of low voltage, small size and high ESD surge

capability makes them ideal for protection of sensitive

electronics in automotive applications.

Applications

Mechanical Characteristics

Automotive Applications

Low Voltage Data Lines

10/100 Ethernet

Transient protection for data lines to

IEC 61000-4-2 (ESD) ±25kV (air), ±20kV (contact)

IEC 61000-4-4 (EFT) 40A (tp = 5/50ns)

Cable Discharge Event (CDE)

Qualified to AEC-Q100, Grade 3

Protects one data line

Low clamping voltage

Working voltage: 3.3V

Low leakage current

Solid-state silicon-avalanche technology

SLP1006P2 package

Pb-Free, Halogen Free, RoHS/WEEE Compliant

Nominal Dimensions: 1.0 x 0.6 x 0.5 mm

Lead Finish: NiPdAu

Molding compound flammability rating: UL 94V-0

Marking : Marking code

Packaging : Tape and Reel

SLP1006P2 (Bottom View)

Maximum Dimensions (mm)

0.65

0.50

0.60

1.0

PROTECTION PRODUCTS

uClamp3311PQ

Absolute Maximum Rating

Electrical Characteristics (T=25oC)

retemaraPlobmySsnoitidnoCmuminiMlacipyTmumixaMstinU

egatloVffO-dnatSesreveRV

MWR

3.3V

egatloVhguorhT-hcnuPV

C°52=T,Aµ2=5.3V

egatloVhguorhT-hcnuPV

C°58=T,Aµ2=5.3V

egatloVkcaB-panSV

Am05=8.2V

tnerruCegakaeLesreveRI

MWR

C°52=T,V3.3=50.05.0Aµ

tnerruCegakaeLesreveRI

MWR

C°58=T,V3.3=1.01Aµ

egatloVgnipmalCV

sµ02/8=pt,A1=8V

egatloVgnipmalCV

sµ02/8=pt,A5=81V

ecnaticapaCnoitcnuJC

dnGotnipO/I

zHM1=f,V0=

2151Fp

dnGotnipO/I

zHM1=f,V3.3=

01Fp

gnitaRlobmySeulaVstinU

)sµ02/8=pt(rewoPesluPkaePP

09sttaW

(tnerruCesluPkaePmumixaM)sµ02/8=ptI

5spmA

)riA(2-4-00016CEIrepDSE

)tcatnoC(2-4-00016CEIrepDSE

DSE

52-/+

02-/+

erutarepmeTgnitarepOT

58+ot04-C°

erutarepmeTegarotST

GTS

051+ot55-C°

PROTECTION PRODUCTS

uClamp3311PQ

Typical Characteristics

Non-Repetitive Peak Pulse Power vs. Pulse Time

100

110

0 25 50 75 100 125 150

Ambient Temperature - TA (oC)

% of Rated Power or IPP

Power Derating Curve

Clamping Voltage vs. Peak Pulse Current

Reverse Leakage Current vs. Temperature

0.01

0.1

0.1 1 10 100 1000

Pulse Duration - tp (us)

Peak Pulse Power - PPP (kW)

Normalized Capacitance vs. Reverse Voltage

Insertion Loss S21

START

. 030 MHz 3

STOP 000

. 000 000 MHz

CH1 S21 LOG 6 dB / REF 0 dB

1: -3.0120 dB

616.229 MHz

2: -3.8355 dB

900 MHz

3: -5.9804 dB

1.8 GHz

4: -8.1629 dB

2.5 GHz

0 dB

-6 dB

-12 dB

-18 dB

-24 dB

-30 dB

-36 dB

GHz

100

MHz 3

GHz

MHz

1 2

0.0 1.0 2.0 3.0 4.0 5.0 6.0

Peak Pulse Current - IPP (A)

Clamping Voltage - VC (V)

TA=25OC

8/20μs pulse

0.0

0.3

0.5

0.8

1.0

1.3

0.0 1.0 2.0 3.0 4.0

Reverse Voltage - VR (V)

Capacitance (normalized to VR=0)

TA=25OC

f = 1 MHz

100

150

-75 -25 25 75 125 175

Temperature (OC)

Leakage Current (nA)

PROTECTION PRODUCTS

uClamp3311PQ

Device Connection Options

The µClamp3311PQ is designed to protect one data

line operating up to 3.3 volts. It will present a high

impedance to the protected line up to 3.3 volts. It will

“turn on” when the line voltage exceeds 3.5 volts. The

device is bidirectional and may be used on lines where

the signal polarity is above and below ground. These

devices are not recommended for use on dc power supply

lines due to their snap-back voltage characteristic.

EPD TVS Characteristics

These devices are constructed using Semtech’s

proprietary EPD technology. The structure of the EPD

TVS is vastly different from the traditional pn-junction

devices. At voltages below 5V, high leakage current

and junction capacitance render conventional ava-

lanche technology impractical for most applications.

However, by utilizing the EPD technology, these devices

can effectively operate at 3.3V while maintaining

excellent electrical characteristics.

The EPD TVS employs a complex nppn structure in

contrast to the pn structure normally found in tradi-

tional silicon-avalanche TVS diodes. The EPD mecha-

nism is achieved by engineering the center region of

the device such that the reverse biased junction does

not avalanche, but will “punch-through” to a conduct-

ing state. This structure results in a device with supe-

rior DC electrical parameters at low voltages while

maintaining the capability to absorb high transient

currents.

Circuit Board Layout Recommendations for Suppres-

sion of ESD.

Good circuit board layout is critical for the suppression

of ESD induced transients. The following guidelines are

recommended:

zPlace the TVS near the input terminals or connec-

tors to restrict transient coupling.

zMinimize the path length between the TVS and the

protected line.

zMinimize all conductive loops including power and

ground loops.

zThe ESD transient return path to ground should be

kept as short as possible.

zNever run critical signals near board edges.

zUse ground planes whenever possible.

Applications Information

Device Schematic & Pin Configuration

IPP

ISB

IPT

VRWM VV PT VC

EPD TVS IV Characteristic Curve

PROTECTION PRODUCTS

uClamp3311PQ

Outline Drawing - SLP1006P2

Land Pattern - SLP1006P2

INCHES

.026 BSC

aaa

.008

.020

DIM

MIN

.018

.016

0.30

0.70

0.20

0.50

.003

.010

.024

.012

.028

0.08

0.25

0.60

0.65 BSC

MILLIMETERS

MAX

0.55

DIMENSIONS

MIN

0.45

NOM

.020

MAX

.022

NOM

0.40

0.50

CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).

NOTES:

BOTTOM VIEW

TOP VIEW

aaa C

SEATING

PLANE

bbb C A B

D.035 .039 .043 0.90 1.10

1.00

.004bbb 0.10

bxN

A1 .000 .001 .002 0.00 0.03 0.05

2x L

PIN 1 ID

R .002 .004 .006 0.05 0.10 0.15

THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY.

CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR

NOTES:

DIM

MILLIMETERSINCHES

(0.85)

.055

.012

.022

(.033)

1.40

0.55

0.30

DIMENSIONS

COMPANY'S MANUFACTURING GUIDELINES ARE MET.

X .024 0.60

1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).

PROTECTION PRODUCTS

uClamp3311PQ

Marking Code Ordering Information

rebmuNtraP repytQ

leeR

eziS

TCT.QP1133pmalCu000,3hcnI7

MicroClamp, uClamp and µClamp are trademarks of Semtech

Corporation

epaT

htdiW )xaM(,BD1DE F P0P2PTW

mm8 mm2.4

)561.(

mm1.0+5.1

mm0.0-

500.+95.0(

)000.-

mm4.0

52.0±

)130.(

01.±057.1

)400.±960.

(

50.0±5.3

)200.±831.(

01.0±0.4

-00.±751.(

1.0±0.4

-00.±751.(

50.0±0.2

)200.±970.(

20.0±452.0

)610.(mm

mm0.8

mm3.0+

mm1.0-

)210.±213.(

0A0B0K

mm01.0-/+96.0mm01.0-/+91.1mm01.0-/+66.0

Notes:

1) Device is electrically symmetrical

Tape and Reel Specification

Contact Information

Semtech Corporation

Protection Products Division

200 Flynn Road, Camarillo, CA 93012

Phone: (805)498-2111 FAX (805)498-3804