RClamp0502N

RClamp0502N
RailClamp®
Low Capacitance TVS Diode Array
PROTECTION PRODUCTS - RailClamp®
Description
Features
‹ ESD protection for high-speed data lines to
The RailClamp® series is a family of ultra low capacitance TVS arrays designed to protect high speed data
interfaces. This series has been specifically designed to
protect sensitive components which are connected to
high-speed data and transmission lines from overvoltage
caused by ESD (electrostatic discharge), CDE (Cable
Discharge Events), and EFT (electrical fast transients).
They are designed for use in applications where board
space is at a premium. Each device requires less than
1.2mm2 of PCB area and will protect up to two high
speed data lines.
The monolithic design incorporates surge rated, low
capacitance steering diodes and a TVS diode in a single
package. Each line has a typical capacitance of
<0.5pF to ground. The capacitance of each line is well
matched for consistant signal balance. A connection
to the TVS is provided for protection of external
voltage buses, such as those found in USB applications. 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).
The RClamp0502N is in a 6-pin, RoHS/WEEE compliant, SLP1210N6 package. It measures 1.2 x 1.0 x
0.58mm. The small package makes it ideal for use in
portable electronics such as cell phones, laptops, and
digital still cameras.
‹
‹
‹
‹
‹
‹
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
Array of surge rated diodes with internal TVS Diode
Small package saves board space
Protects two I/O lines and a power line
Low capacitance: 0.3pF typical
Low clamping voltage
Solid-state silicon-avalanche technology
Mechanical Characteristics
‹
‹
‹
‹
‹
‹
‹
SLP1210N6 Package
RoHs/WEEE Compliant
Nominal Dimensions: 1.2 x 1.0 x 0.58 mm
Lead Pitch: 0.4mm
Lead Finish: NiPdAu
Marking : Marking Code
Packaging : Tape and Reel
Applications
‹
‹
‹
‹
Circuit Diagram
USB
MMC Port
Serial ATA
Video Port
Pin Configuration
6
1
4
5
VBus (Pin 6)
NC (Pin 2)
I/O 2 (Pin 5)
NC (Pin 3)
I/O 1 (Pin 4)
SLP1210N6 package (Top Side View)
Device Schematic
Revision 09/19/2008
GND (Pin 1)
1
www.semtech.com
RClamp0502N
PROTECTION PRODUCTS
Absolute Maximum Rating
Rating
Symbol
Value
Units
Peak Pulse Power (tp = 8/20μs)
Ppk
100
Watts
Peak Pulse Current (tp = 8/20μs)
IPP
3
A
ESD per IEC 61000-4-2 (Air)
ESD per IEC 61000-4-2 (Contact)
VESD
±15
±8
kV
TJ
-55 to +125
°C
TSTG
-55 to +150
°C
Operating Temperature
Storage Temperature
Electrical Characteristics (T = 25oC)
R Clamp0502N
Parameter
Symbol
Conditions
Reverse Stand-Off Voltage
VRWM
Pin 6 to GN D
Reverse Breakdown Voltage
V BR
It = 1mA
Pin 6 to GN D
Reverse Leakage Current
IR
VRWM = 6.5V, T=25°C
Pin 6 to GN D
Forward Voltage
VF
If = 15mA
Any I/O to pin 6
Clamping Voltage
VC
Clamping Voltage
Junction Capacitance
© 2008 Semtech Corp.
Maximum
Units
6.5
V
12
V
1
μA
1.2
V
IPP = 1A, tp = 8/20μs
Any I/O pin to Ground
16.5
V
VC
IPP = 3A, tp = 8/20μs
Any I/O pin to Ground
30
V
Cj
VR = 0V, f = 1MHz
Any I/O pin to Ground
0.3
0.5
pF
VR = 0V, f = 1MHz
Between I/O pins
0.3
0.5
pF
2
Minimum
7
Typical
9.5
0.9
www.semtech.com
RClamp0502N
PROTECTION PRODUCTS
Typical Characteristics
Non-Repetitive Peak Pulse Power vs. Pulse Time
Power Derating Curve
110
100
90
% of Rated Power or PI P
Peak Pulse Power - P Pk (kW)
10
1
0.1
80
70
60
50
40
30
20
10
0.01
0
0.1
1
10
100
0
1000
25
50
100
125
150
Foward Voltage vs. Forward Current
Pin 1 to Pin 4, 5
40
8
35
7
Forward Voltage - V F V)
Clamping Voltage - VC (V)
Clamping Voltage vs. Peak Pulse Current
I/O to Gnd - Pin 4, 5 to Pin 1
30
25
20
15
Waveform
Parameters:
tr = 8μs
td = 20μs
10
5
6
5
4
3
Waveform
Parameters:
tr = 8μs
td = 20μs
2
1
0
0
0
0.5
1
1.5
2
2.5
3
3.5
4
0
0.5
1
1.5
Peak Pulse Current - IPP (A)
2
2.5
3
3.5
4
Forward Current - IF (A)
Normalize Capacitance vs. Reverse Voltage
I/O to Gnd - Pin 4, 5 to Pin 1
Normalize Capacitance vs. Reverse Voltage
I/O to I/O - Pin 4 to Pin 5
1.6
1.6
1.4
1.4
1.2
1.2
CJ(VR) / CJ(VR=0)
CJ(VR) / CJ(VR=0)
75
Ambient Temperature - TA (oC)
Pulse Duration - tp (µs)
1
0.8
0.6
1
0.8
0.6
0.4
0.4
0.2
0.2
f = 1 MHz
f = 1 MHz
0
0
0
1
2
3
4
5
6
0
7
© 2008 Semtech Corp.
1
2
3
4
5
6
7
Reverse Voltage - VR (V)
Reverse Voltage - VR (V)
3
www.semtech.com
RClamp0502N
PROTECTION PRODUCTS
Applications Information
Figure 1- Pin Configuration & Circuit Diagram
Device Connection Options for Protection of Two HighSpeed Data Lines
Data line inputs are normally connected at pins 4 & 5
with the outputs connected at pins 2 & 3. Pin 1 is
connected to ground. Note that the circuit at the ground
pin is identical to the circuit at each data input/output
pin. This is done to further reduce capacitance. The
connection to ground should be made directly to a
ground plane. The path length should also be kept as
short as possible to minimize parasitic inductance. Pin
6 can be connected to Vcc biased or left not connected
depending upon the application.
6
1
Protecting USB 2.0 Interfaces
4
5
Figure 2 - USB 2.0 High Speed Protection
The USB interface consists of Data (D- and D+) lines and
a 5.25V voltage bus. Since these pins are part of the
connector, they are vulnerable to ESD and cable
discharge events. The RClamp0502N is designed to
protect all four USB connections (VCC, D-, D+, and Gnd).
Each device will protect one USB port. When the voltage
on the data lines exceed the bus voltage (plus one diode
drop), the internal rectifiers are forward biased
conducting the transient current away from the
protected controller chip. The TVS diode directs the
surge to ground. The TVS diode also acts to suppress
ESD strikes directly on the voltage bus. Thus, both
power and data pins are protected with a single device.
GND (Pin 1)
VBus (Pin 6)
NC (Pin 2)
D+ or D- (Pin 5)
NC (Pin 3)
D+ or D- (Pin 4)
USB Controller
USB Connector
Pin 1
DD+
Pin 6
Pin 2
Pin 5
Pin 3
Pin 4
Vbus
DD+
Gnd
© 2008 Semtech Corp.
4
www.semtech.com
RClamp0502N
PROTECTION PRODUCTS
Applications Information - Spice Model
I/O
Figure 3 - RClamp0502N Spice Model
RClamp0502N Spice Parameters
Parameter
Unit
D1 (LCRD)
D2 (LCRD)
D3 (T VS)
IS
Amp
1.0E-20
1.0E-20
2E-12
BV
Volt
100
100
9
VJ
Volt
0 .7
0.7
0.6
RS
O hm
0.458
1.0
2.6
IBV
Amp
1.0 E-3
1.0 E-3
1.0 E-3
CJO
Farad
0.4E-12
0.4E-12
56E-12
TT
sec
2.541E-9
2.541E-9
2.541E-9
M
--
0.058
0.058
0.23
N
--
1.1
1.1
1.1
EG
eV
1.11
1.11
1.11
© 2008 Semtech Corp.
5
www.semtech.com
RClamp0502N
PROTECTION PRODUCTS
OutlineDrawing
Drawing-SLP1210N6
- SO-8
Outline
A
B
D
DIMENSIONS
INCHES
MILLIMETERS
DIM
MIN NOM MAX MIN NOM MAX
E
PIN 1
INDICATOR
(LASER MARK)
A
SEATING
PLANE
aaa C
A2
A
A1
A2
b
D
E
e
L
N
aaa
bbb
.020 .023 .026
0.00 .001 .002
(.005)
.006 .008 .010
.043 .047 .051
.035 .039 .043
.016 BSC
.012 .015 .017
6
.003
.004
0.50 0.58 0.65
0.00 0.03 0.05
(0.13)
0.15 0.20 0.25
1.10 1.20 1.30
0.90 1.00 1.10
0.40 BSC
0.30 0.38 0.425
6
0.08
0.10
C
A1
D/2
1
2
LxN
E/2
N
bxN
e
bbb
C A B
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
Land Pattern -SLP1210N6
P
DIMENSIONS
DIM
C
G
P
X
Y
Z
Z
(C) G
Y
X
INCHES
(.034)
.008
.016
.008
.027
.061
MILLIMETERS
(0.875)
0.20
0.40
0.20
0.675
1.55
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
2. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY.
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY'S MANUFACTURING GUIDELINES ARE MET.
© 2008 Semtech Corp.
6
www.semtech.com
RClamp0502N
PROTECTION PRODUCTS
Marking Codes
Ordering Information
0502N
Part Number
Qty per Reel
Reel Size
RClamp0502N.TCT
3,000
7 Inch
RailClamp and RClamp are marks of Semtech Corporation
Tape and Reel Specification
Pin 1 Location
User Direction of feed
Device Orientation in Tape
A0
1.21 ±0.10 mm
B0
K0
1.41 ±0.10 mm
0.74 ±0.10 mm
Tape
Width
B, (Max)
D
D1
8 mm
4.2 mm
(.165)
1.5 + 0.1
mm - 0.0
mm (0.59
+ .0 0 5
- .0 0 0 )
0.8 mm
±0.05
(.031)
F
K
(MAX)
P
P0
P2
T(MAX)
W
3.5±0.05
mm
(.138±.002)
2.4 mm
( .0 9 4 )
4.0±0.1
mm
(.157±.004)
4.0±0.1
mm
(.157±.004)
2.0±0.05mm
(.079±.002)
0.4 mm
(.016)
8.0 mm
+ 0.3 mm
- 0.1 mm
(.312±.012)
E
1.750±.10
mm
(.069±.004)
Contact Information for Semtech International AG
Taiw an Branch
Tel: 886-2-2748-3380
Fax: 886-2-2748-3390
Semtech Sw itz erland GmbH
Japan Branch
Tel: 81-3-6408-0950
Fax: 81-3-6408-0951
Tel: 82-2-527-4377
Fax: 82-2-527-4376
Semtech Limited (U.K.)
Tel: 44-1794-527-600
Fax: 44-1794-527-601
Tel: 86-21-6391-0830
Fax: 86-21-6391-0831
Semtech France SARL
Tel: 33-(0)169-28-22-00
Fax: 33-(0)169-28-12-98
Semtech International AG is a wholly-owned subsidiary of
Semtech Corporation, which has its headquarters in the U.S.A.
Semtech Germany GmbH
Tel: 49-(0)8161-140-123
Fax: 49-(0)8161-140-124
© 2008 Semtech Corp.
7
Korea Branch
Shanghai Office
www.semtech.com