PROTEC PSRDA3.3-4

05096
PSRDA3.3-4
thru
PSRDA15-4
Only One Name Means ProTek’Tion™
STEERING DIODE / TVS ARRAY COMBO
APPLICATIONS
✔ Ethernet - 10/100 Base T
✔ Computer I/O Ports - SCSI, FireWire & USB
✔ Set-Top Box Protection
✔ Video Card
IEC COMPATIBILITY (EN61000-4)
✔ 61000-4-2 (ESD): Air - 15kV, Contact - 8kV
✔ 61000-4-4 (EFT): 40A - 5/50ns
✔ 61000-4-5 (Surge): 24A, 8/20µs - Level 2(Line-Gnd) & Level 3(Line-Line)
SO-8
FEATURES
✔ 500 Watts Peak Pulse Power per Line (tp=8/20µs)
✔ Unidirectional Configuration
✔ Available in 4 Voltage Types: 3.3V to 15V
✔ Protects Up to Four (4) I/O Ports
✔ ESD Protection > 40 kilovolts
✔ LOW CAPACITANCE: 15pF
✔ RoHS Compliant in Lead-Free Versions
MECHANICAL CHARACTERISTICS
✔
✔
✔
✔
Molded JEDEC SO-8 Package
Weight 70 milligrams (Approximate)
Available in Tin-Lead or Lead-Free Pure-Tin Plating(Annealed)
Solder Reflow Temperature:
Tin-Lead - Sn/Pb, 85/15: 240-245°C
Pure-Tin - Sn, 100: 260-270°C
✔ Flammability Rating UL 94V-0
✔ 12mm Tape and Reel Per EIA Standard 481
✔ Marking: Logo, Marking Code, Date Code & Pin One Defined By Dot on Top of Package
PIN CONFIGURATION
05096.R7 4/05
GND
I/O 4
I/O 3
GND
8
7
6
5
1
2
3
I/O 1
+VREF
+VREF
1
4
I/O 2
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DEVICE CHARACTERISTICS
MAXIMUN RATINGS @ 25°C Unless Otherwise Specified
SYMBOL
VALUE
UNITS
Peak Pulse Power (tp = 8/20µs) - See Figure 1
PPP
500
Watts
Operating Temperature
TJ
-55°C to 150°C
°C
Storage Temperature
TSTG
-55°C to 150°C
°C
Maximum Forward Voltage @ 100mA (See Note 1)
VF
1.1
Volts
PARAMETER
Note 1: Measured between pins 8 or 5 to 1, 2, 3, 4, 6 and 7.
ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified
PART
NUMBER
DEVICE
MARKING
PRA
PRB
PRD
PRE
PSRDA3.3-4
PSRDA05-4
PSRDA12-4
PSRDA15-4
RATED
STAND-OFF
VOLTAGE
MINIMUM
BREAKDOWN
VOLTAGE
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
MAXIMUM
CLAMPING
VOLTAGE
(See Fig. 2)
VWM
VOLTS
@ 1mA
V(BR)
VOLTS
@ IP = 1A
VC
VOLTS
3.3
5.0
12.0
15.0
4.0
6.0
13.3
16.7
6.5
9.8
19.0
24.0
MAXIMUM
LEAKAGE
CURRENT
MAXIMUM
CAPACITANCE
(See Note 1)
(See Figure 5)
@8/20µs
VC @ IPP
@VWM
ID
µA
@0V, 1 MHz
Cj(SD)
pF
10.9V @ 43.0A
13.5V @ 42.0A
25.9V @ 21.0A
30.0V @ 17.0A
125
20
1
1
15
15
15
15
Note 1: Capacitance measured at VWM = VCC connected between I/O pins to pin 8 and 5 (Gnd). VR = VWM @ 1MHz. As shown in Figure 5, REF1 is
connected to ground, REF2 is connected to +VCC, and input applies to VCC = 5V, Vsign = mV, F = 1 MHz.
500W 8/20µs Waveform
1,000
100
10
0.1
05096.R7 4/05
FIGURE 2
PULSE WAVE FORM
120
IPP - Peak Pulse Current - % of IPP
PPP - Peak Pulse Power - Watts
10,000
FIGURE 1
PEAK PULSE POWER VS PULSE TIME
tf
100
TEST
WAVEFORM
PARAMETERS
tf = 8µs
td = 20µs
Peak Value IPP
80
e-t
60
40
td = t I /2
PP
20
0
1
10
100
td - Pulse Duration - µs
1,000
10,000
2
0
5
10
15
t - Time - µs
20
25
30
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GRAPHS
FIGURE 3
POWER DERATING CURVE
100
40
Peak Pulse Power
8/20µs
5 Volts per Division
80
% Of Rated Power
FIGURE 4
OVERSHOOT & CLAMPING VOLTAGE FOR PSRDA05-4
60
40
30
20
10
20
0
Average Power
0
0
25
50
75
100
125
TL - Lead Temperature - °C
150
FIGURE 5
INPUT CAPACITANCE CIRCUIT
ESD Test Pulse: 8 kilovolt, 1/30ns (waveshape)
FIGURE 6
TYPICAL CLAMPING VOLTAGE VS PEAK PULSE CURRENT FOR PSRDA05-4
12
I/O
VR
+VCC
G
VC - Clamping Voltage - Volts
REF2
8
4
0
0
5
10
15
20
IPP - Peak Pulse Current - Amps
REF1
FIGURE 7
INSERTION LOSS - PSRDA12-4
20 db
10 db per Division
10 db per Division
30
FIGURE 8
RETURN LOSS - PSRDA12-4
20 db
Ref 0 db
-20 db
Ref 0 db
-20 db
-50 db
-50 db
100 MHz per Division
100 MHz per Division
05096.R7 4/05
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3
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APPLICATION NOTE
The PSRDAxx-4 Series are low capacitance, unidirectional TVS arrays that are designed to protect I/O or high speed data lines from the damaging
effects of ESD or EFT. This product series has a surge capability of 500 Watts PPP per line for an 8/20µs waveshape and offers ESD protection >
40kV.
DIFFERENTIAL-MODE CONFIGURATION (Figure 1)
Figure 1. Typical Differential-Mode USB Protection
Ideal for use in USB applications, the PSRDAxx-4 Series provides up
to four (4) lines of protection in a differential-mode configuration as
depicted in Figure 1.
USB PORT
VBUS
D+
D-
Circuit connectivity is as follows:
✔ Pins 1, 4, 6 and 7 are connected to the data lines.
✔ Pins 5 and 8 are connected to ground.
✔ Pins 2 and 3 are connected to the databus.
VBUS
GND
3
2
1
5
6
7
8
USB CONTROLLER
4
DIFFERENTIAL-MODE CONFIGURATION (Figure 2)
The PSRDAxx-4 Series also provides up to four (4) lines of protection
in a differential-mode configuration as depicted in Figure 2 for T1/E1
applications.
Circuit connectivity is as follows:
✔ Pins 1, 4, 6 and 7 are connected to the data lines.
✔ Pins 5 and 8 are connected to ground.
✔ Pins 2 and 3 are connected to the databus.
USB PORT
GND
GND
VBUS
D+
D-
CIRCUIT BOARD LAYOUT RECOMMENDATIONS
GND
Circuit board layout is critical for Electromagnetic Compatibility (EMC) protection. The following guidelines are
recommended:
✔
Figure 2. Typical Differential-Mode T1/E1 Protection
The protection device should be placed near the input
terminals or connectors, the device will divert the
transient current immediately before it can be coupled
into the nearby traces.
PTC
RTIP
PLC016
The path length between the TVS device and the
protected line should be minimized.
RRING
PTC
✔
All conductive loops including power and ground
loops should be minimized.
✔
The transient current return path to ground should be
kept as short as possible to reduce parasitic inductance.
✔
Ground planes should be used whenever possible.
For multilayer PCBs, use ground vias.
T1/E1 TRANSCEIVER
✔
GND
4
3
2
1
5
6
7
8
GND
PTC
TTIP
PLC016
TRING
PTC
05096.R7 4/05
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PACKAGE OUTLINE & DIMENSIONS
PACKAGE OUTLINE
SO-8
-A-
8
5
+ 0.010” (0.25 MM) M B M
4 PL
-B - P
1
G
PACKAGE DIMENSIONS
4
DIM
A
B
C
D
F
G
J
K
P
R
D
C
R x 45°
0° - 10°
-T-
K
0.010” (0.25 MM) M T B S A S
8 PL
+
J
F
MILLIMETERS
MIN
MAX
4.80
3.80
1.35
0.35
0.40
1.27 BSC
0.18
0.10
5.80
0.25
INCHES
MIN
MAX
5.00
0.189
0.196
4.00
0.150
0.157
0.054
0.068
1.75
0.49
0.014
0.019
0.049
1.250
0.016
1.27 BSC 0.05 BSC 0.05 BSC
0.25
0.007
0.009
0.004
0.008
0.25
6.20
0.229
0.244
0.019
0.50
0.010
NOTES
1.
2.
3.
4.
5.
6.
MOUNTING PAD
0.050 ± 0.005”
0.030 ± 0.005”
- T - = Seating Plane and Datum Surface.
Dimensions “A” and “B” are Datum.
Dimensions “A” and “B” do not include mold protrusion.
Maximum mold protrusion is 0.015” (0.380 mm) per side.
Dimensioning and tolerances per ANSI Y14.5M, 1982.
Dimensions are exclusive of mold flash and metal burrs.
TAPE & REEL/BULK ORDERING NOMENCLATURE
0.160 ± 0.005”
1. Surface mount product is taped and reeled in accordance
with EIA-481.
2. Suffix-T7 = 7 Inch Reel - 1,000 pieces per 12mm tape,
i.e., PSRDA05-4-T7.
3. Suffix-LF = Lead-Free, Pure Tin Plating,
i.e., PSRDA05-4-LF-T7.
4. Suffix-T13 = 13 Inch Reel - 2,500 pieces per 12mm tape,
i.e., PSRDA05-4-T13.
5. No Suffix = Product Shipped in Tubes of 98 pcs per Tube.
0.245” MIN
0.045 ± 0.005”
Outline & Dimensions: Rev 1 - 11/01, 06009
COPYRIGHT © ProTek Devices 2005
SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical characteristics described herein without notice (except JEDEC).
DESIGN CHANGES: ProTek reserves the right to discontinue product lines without notice, and that the final judgement concerning selection and
specifications is the buyer’s and that in furnishing engineering and technical assistance, ProTek assumes no responsibility with respect to the selection or
specifications of such products.
05096.R7 4/05
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ProTek Devices
2929 South Fair Lane, Tempe, AZ 85282
Tel: 602-431-8101 Fax: 602-431-2288
E-Mail: [email protected]
Web Site: www.protekdevices.com
www.protekdevices.com