RCLAMP0504F.TCT资料

STOP 3000.000000 MHz
ESD Response (8kV Contact per IEC 61000-4-2)
START. 030 MHz
STOP 3000.000000 MHz
Note: Data is taken with a 10x attenuator
© 2008 Semtech Corp.
tr = 8µs td = 20µs
e-t
td = IPP/2
5
10
15
20
25
30
Time (µs)
Forward Voltage vs. peak Pulse Current
8
7
6
5
4
3
Waveform
2
Parameters:
tr = 8µs
1
td = 20µs
0
0
1
2
3
4
5
6
Peak Pulse Current - IPP (A)
Schematic & PIN Configuration
5
1
3
4
6
2
Revision 11/18/2008
1
1
6
2
5
3
4
SC-70 6L (Top View)

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PROTECTION PRODUCTS Absolute Maximum Rating
0 0
25
50
75
100
125
150
Ambient Temperature - TA (oC)
Clamping Voltage vs. Peak Pulse Current
25
Waveform
Parameters:
tr = 8µs
20
td = 20µs
Pin 1, 3, 4, or 6 to pin 2
© 2008 Semtech Corp.
3

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PROTECTION PRODUCTS Typical Characteristics
Insertion Loss S21 (I/O to Pin 2)
CH1 S21 LOG 6 dB / REF 0 dB
Forward Voltage - VF (V)
Normalized Capacitance
Clamping Voltage - VC (V)
% of Rated Power or IPP
RClamp0504F
Power Derating Curve
110 100
90 80 70 60 50 40 30 20 10
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PROTECTION PRODUCTS - RailClamp® Description
RailClamps® are surge rated diode arrays designed to protect high speed data interfaces. This series has been specifically designed to protect sensitive components which are connected to data and transmission lines from overvoltage caused by ESD (electrostatic discharge), CDE (Cable Discharge Events), and EFT (electrical fast transients). The unique design incorporates surge rated, low capacitance steering diodes and a TVS diode in a single package. During transient conditions, the steering diodes direct the transient to either the positive side of the power supply line or to ground. The internal TVS diode prevents over-voltage on the power line, protecting any downstream components. The low capacitance array configuration allows the user to protect four high-speed data or transmission lines. The low inductance construction minimizes voltage overshoot during high current surges. This device is optimized for ESD protection of portable electronics. They may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (±15kV air, ±8kV contact discharge).
Circuit Diagram
RClamp0504F
RailClamp® Low Capacitance TVS Array
Features
Transient protection for high-speed data lines to IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) IEC 61000-4-4 (EFT) 40A (5/50ns)
Rating Peak Pulse Power (tp = 8/20μs) Peak Pulse Current (tp = 8/20μs) ESD per IEC 61000-4-2 (Air) ESD per IEC 61000-4-2 (Contact) Operating Temperature Storage Temperature
Mechanical Characteristics
EIAJ SC-70 6L package Lead Finish: Matte Tin RoHS/WEEE Compliant Molding compound flammability rating: UL 94V-0 Marking : F54 Packaging : Tape and Reel per EIA 481
Symbol VRWM VBR IR VC VC Cj
Note 1: I/O pins are pin 1, 3, 4, and 6
Conditions
Pin 5 to 2
It = 1mA Pin 5 to 2
VRWM = 5V, T=25°C Pin 5 to 2
IPP = 1A, tp = 8/20μs Any pin to pin 2
10
Peak Pulse Power - PPP (kW)
1
0.1
Percent of I PP
0.01 0.1
110 100
90 80 70 60 50 40 30 20 10
0 0
1
10
100
Pulse Duration - tp (μs)
1000
Pulse Waveform
Waveform Parameters:
Electrical Characteristics (T=25oC)
RClamp0504F
Symbol Ppk IPP VESD
TJ TSTG
Value 150
6 15 8 -55 to +125 -55 to +150
Units Watts
A kV
°C °C
Parameter Reverse Stand-Off Voltage Reverse Breakdown Voltage Reverse Leakage Current Clamping Voltage Clamping Voltage Junction Capacitance
IPP = 6A, tp = 8/20μs Any pin to pin 2
VR = 0V, f = 1MHz Any I/O pin to pin 2
V = 0V, f = 1MHz R
Between I/O pins
Minimum 6
Typical
Maximum 5
Units V V
3
μA
15
V
This device is designed to protect data lines by clamping them to a fixed reference. When the voltage on the protected line exceeds the reference voltage the steering diodes are forward biased, conducting the transient current away from the sensitive circuitry. Data lines are connected at pins 1, 3, 4 and 6. Pin 2 should be connected directly to a ground plane. The path length is kept as short as possible to minimize parasitic inductance. The positive reference is connected at pin 5. The options for connecting the positive reference are as follows:
RClamp0504F
Insertion Loss S21 (I/O to I/O)
CH1 S21 LOG 6 dB / REF 0 dB
START. 030 MHz
STOP 3000.000000 MHz
Analog Crosstalk
CH1 S21 LOG 20 dB/REF 0 dB
START. 030 MHz
25
V
3
pF
1.5
pF
© 2008 Semtech Corp.
2

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PROTECTION PRODUCTS Typical Characteristics
Non-Repetitive Peak Pulse Power vs. Pulse Time
15
Pin 5 to pin
3
4
5
6
Peak Pulse Current - IPP (A)
Capacitance vs. Reverse Voltage (Normalized to 0V)
2 f = 1MHz
1.5
Any I/O Pin to Pin 2
1
0.5
0
0
1
2
3
4
5
Reverse Voltage - VR (V)
4

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RClamp0504F
PROTECTION PRODUCTS
Applications Information
Device Connection Options for Protection of Four High-Speed Data Lines
Array of surge rated diodes with internal TVS Diode Small package (2.4 x 2.2mm) saves board space Protects up to four I/O lines & power line Low capacitance (<3pF) for high-speed interfaces No insertion loss to 2.0GHz Low leakage current and clamping voltage Low operating voltage: 5.0V Solid-state silicon-avalanche technology
Applications
USB 2.0 USB OTG Monitors and Flat Panel Displays Digital Visual Interface (DVI) High-Definition Multimedia Interface (HDMI) Gigabit Ethernet SIM Ports IEEE 1394 Firewire Ports