PSRDA3.3-4_07 [PROTEC]
STEERING DIODE/ TVS ARRAY COMBO; 控向二极管/ TVS阵列COMBO
| 型号： | PSRDA3.3-4_07 |
| 厂家： | 
PROTEK DEVICES |
| 描述： | STEERING DIODE/ TVS ARRAY COMBO |
| 文件： | 总5页 (文件大小：92K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PSRDA3.3-4
thru
PSRDA15-4
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
MECHANICAL CHARACTERISTICS
✔ Molded JEDEC SO-8
✔ Weight 70 milligrams (Approximate)
✔ Available in Lead-Free Pure-Tin Plating(Annealed)
✔ Solder Reflow Temperature:
Pure-Tin - Sn, 100: 260-270°C
✔ Consult Factory for Leaded Device Availability
✔ Flammability Rating UL 94V-0
✔ 12mm Tape and Reel Per EIA Standard 481
✔ Marking: Marking Code, Logo, Date Code & Pin One Defined By Dot on Top of Package
PIN CONFIGURATION
GND
I/O 4
I/O 3
GND
8
5
7
6
1
I/O 1
2
+VREF
3
+VREF
4
I/O 2
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DEVICE CHARACTERISTICS
MAXIMUM RATINGS @ 25°C Unless Otherwise Specified
PARAMETER
SYMBOL
PPP
VALUE
500
UNITS
Watts
°C
Peak Pulse Power (tp = 8/20µs) - See Figure 1
Operating Temperature
T
-55 to 150
-55 to 150
1.1
L
StorageTemperature
TSTG
VF
°C
Maximum Forward Voltage @ 100mA(See Note 1)
Volts
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
RATED
STAND-OFF
VOLTAGE
PART
NUMBER
DEVICE
MARKING
MINIMUM
BREAKDOWN
VOLTAGE
MAXIMUM
CLAMPING
VOLTAGE
MAXIMUM
CLAMPING
VOLTAGE
MAXIMUM
LEAKAGE
CURRENT
MAXIMUM
CAPACITANCE
(See Note 1)
(See Figure 5)
(See Fig. 2)
(See Fig. 2)
@ 1mA
V(BR)
VOLTS
@ IP = 1A
VC
VOLTS
@VWM
ID
µA
@0V, 1 MHz
Cj(SD)
VWM
VOLTS
@8/20µs
VC @ IPP
pF
PSRDA3.3-4
PSRDA05-4
PSRDA12-4
PSRDA15-4
PRA
PRB
PRD
PRE
4.0
6.0
13.3
16.7
6.5
9.8
19.0
24.0
10.9V @ 43.0A
13.5V @ 42.0A
25.9V @ 21.0A
30.0V @ 17.0A
125
20
1
15
15
15
15
3.3
5.0
12.0
15.0
1
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.
FIGURE 1
FIGURE 2
PEAK PULSE POWER VS PULSE TIME
PULSE WAVE FORM
120
100
10,000
1,000
TEST
tf
WAVEFORM
PARAMETERS
tf = 8µs
Peak Value IPP
e-t
500W 8/20µs Waveform
80
60
40
td = 20µs
100
10
td = t
IPP/2
20
0
0
5
10
15
20
25
30
0.1
1
10
100
1,000
10,000
t - Time - µs
td - Pulse Duration - µs
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GRAPHS
FIGURE 3
FIGURE 4
POWER DERATING CURVE
OVERSHOOT & CLAMPING VOLTAGE FOR PSRDA05-4
100
80
40
30
20
Peak Pulse Power
8/20µs
60
40
10
0
20
0
Average Power
0
25
50
75
100
125 150
ESD Test Pulse: 8 kilovolt, 1/30ns (waveshape)
TL - Lead Temperature - °C
FIGURE 5
FIGURE 6
INPUT CAPACITANCE CIRCUIT
TYPICAL CLAMPING VOLTAGE VS PEAK PULSE CURRENT FOR PSRDA05-4
12
REF2
8
4
0
I/O
+VCC
G
VR
0
5
10
15
20
25
30
REF1
IPP - Peak Pulse Current - Amps
FIGURE 7
FIGURE 8
INSERTION LOSS - PSRDA12-4
RETURN LOSS - PSRDA12-4
20 db
Ref 0 db
-20 db
20 db
Ref 0 db
-20 db
-50 db
-50 db
100 MHz per Division
100 MHz per Division
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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
D+
VBUS
D-
Circuit connectivity is as follows:
VBUS
✔
✔
✔
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.
GND
4
3
2
1
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:
5
6
8
7
✔
✔
✔
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
D+
VBUS
GND
GND
D-
CIRCUIT BOARD LAYOUT RECOMMENDATIONS
GND
Circuit board layout is critical for Electromagnetic Compat-
ibility (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
PLC01-
6
✔
✔
✔
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.
4
3
2
1
The transient current return path to ground should be
kept as short as possible to reduce parasitic induc-
tance.
✔
Ground planes should be used whenever possible.
For multilayer PCBs, use ground vias.
5
6
8
7
PTC
GND
GND
TTIP
PLC01-
6
TRING
PTC
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SO-8 PACKAGE OUTLINE & DIMENSIONS
PACKAGE OUTLINE
SO-8
-A-
8
1
5
0.010 (0.25 MM)
B
M
M
+
PACKAGE DIMENSIONS
MILLIMETERS
P
-B -
4 PL
INCHES
4
DIM
MIN
MAX
MIN
MAX
A
B
C
D
F
G
J
K
P
R
4.80
3.80
1.35
0.35
0.40
5.00
4.00
1.75
0.49
1.250
0.189
0.150
0.054
0.014
0.016
0.196
0.157
0.068
0.019
0.049
D
G
C
R x 45°
1.27 BSC 1.27 BSC 0.05 BSC 0.05 BSC
0.18
0.10
5.80
0.25
0.25
0.25
6.20
0.50
0.007
0.004
0.229
0.010
0.009
0.008
0.244
0.019
0° - 10°
-T-
J
K
F
NOTES
0.010 (0.25 MM)
T B
A
S S
M
+
8 PL
1. - T - = Seating Plane and Datum Surface.
2. Dimensions “A” and “B” are Datum.
3. Dimensions “A” and “B” do not include mold protrusion.
4. Maximum mold protrusion is 0.015” (0.380 mm) per side.
5. Dimensioning and tolerances per ANSI Y14.5M, 1982.
6. Dimensions are exclusive of mold flash and metal burrs.
MOUNTING PAD
0.050 ± 0.005
0.030 ± 0.005
TAPE & REEL/BULK ORDERING NOMENCLATURE
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-T13 = 13 Inch Reel - 2,500 pieces per 12mm tape,
i.e., PSRDA05-4-T13.
0.160 ± 0.005
0.245 MIN
4. Suffix - LF = Lead-Free, Pure-Tin Plating, i.e., PSRDA05-4-LF-T7.
5. No Suffix = Product Shipped in Tubes of 98 pcs per Tube.
0.045 ± 0.005
Outline & Dimensions: Rev 1 - 11/01, 06009
ProTek Devices
2929 South Fair Lane, Tempe, AZ 85282
COPYRIGHT © ProTek Devices 2007
SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical characteristics described herein without notice (except JEDEC).
Tel: 602-431-8101 Fax: 602-431-2288
E-Mail: sales@protekdevices.com
Web Site: www.protekdevices.com
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.R8 3/07
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