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Silicon Protection Circuits
TVS Rail Clamp Array in a Surface Mount Package
NEW
SP0502AAH, SP0506AAA, SP0506AAB, SP0518AAA
This family of rail clamp or “diode steering” arrays is designed for very
low capacitance ESD protection and is offered in small surface mount
packages. The multi-channel devices are used to help protect high
speed sensitive digital or analog input circuits on data, signal, or control
lines with unipolar voltage levels up to 5 VDC. The state-of-the-art
structure is designed to suppress ESD and other transient over-voltage
events to meet the International Electrotechnical Compatibility (IEC)
transient immunity standards IEC 61000-4-2 for Electrostatic
Discharge Requirements.
The monolithic silicon devices are comprised of specially designed low
capacitance structures for transient voltage suppression (TVS). The size
and shape of these structures have be tailored for transient protection.
The low capacitance and clamp voltage are ideal for high speed signal
line protection.
Ordering Information
Features
Part Number
CH
Package Type
Quantity Per
Reel
• A low capacitance 2, 6 and 18 channel array of rail clamp current
steering diodes in small surface mount packages
• ESD Protection Capability (SP0502 and SP0506)
- IEC 61000-4-2, Direct Discharge . . . . . . . . . . . . . . . . . . 8kV (Level 4)
- MIL STD 3015.7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15kV
5
SP0502AAHT
SP0506AAAT
2
6
SOT143
MSOP8
3000
4000
2500
2500
SP0506AABT
SP0518AAAT
6
SOIC8
18
QSOP24
• ESD Protection Capability (SP0518)
- IEC 61000-4-2, Direct Discharge . . . . . . . . . . . . . . . . . 15kV (Level 4)
- MIL STD 3015.7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15kV
• Input Protection for Applications Up to 5VDC
• Fast Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .< 1ns
• Low Input Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7pF
Typical
• Low Clamp Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vrail + 13V
Max
• Low Input Leakage. . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . .100nA typ
• Operating Temperature Range. . . . . . . . . . . . . . . . . . . . . - 20°C to +85°C
Schematic
SP0506AAAT
SP0502AAHT
and
4
SP0506AABT
V+
8
7
6
5
V+
CH 6
CH 5
CH 4
CH 1
CH 2
2
3
Applications
• Cell phone hand sets
V-
1
• Personal Digital Assistants (PDA)
• Portable handheld equipment (Laptop, Palmtop computers)
• Computer port, keyboard (USB1.1)
CH 1
1
CH 2 V-
CH 3
4
2
3
SP0518AAAT
V+ CH18 CH17 CH16 CH15 CH14 V- CH13 CH12 CH11 CH10 V+
24 23 22 21 20 19 18 17 16 15 14 13
1
2
3
4
5
6
7
8
9
10
11 12
V+ CH1 CH2 CH3 CH4 CH5 V-
CH6 CH7 CH8 CH9 V+
205
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