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Littelfuse SP725 Series User Manual

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© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/24/13
TVS Diode Arrays (SPA
®
Diodes)
General Purpose ESD Protection - SP725 Series
Description
Features
• ESD Interface per HBM Standards
- IEC 61000-4-2, Direct Discharge .......... 8kV (Level 4)
- IEC 61000-4-2, Air Discharge ............... 15kV (Level 4)
- MIL-STD-3015.7 .................................................25kV
• Peak Current Capability
- IEC 61000-4-5 8/20 µs Peak Pulse Current ..... ± 14 A
- Single Transient Pulse, 100 µs Pulse Width ...... ± 8 A
• Designed to Provide Over-Voltage Protection
- Single-Ended Voltage Range to ........................ +30V
- Differential Voltage Range to ............................ ±15V
• Fast Switching .............................................. 2ns Risetime
• Low Input Leakages ..........................5 nA at 25 ºC Typical
• Low Input Capacitance ....................................5 pF Typical
• An Array of 4 SCR/Diode Pairs
• Operating Temperature Range..................-40 ºC to 105 ºC
Applications
The SP725 is an array of SCR/Diode bipolar structures for
ESD and overvoltage protection of sensitive input circuits.
The SP725 has 2 protection SCR/Diode device structures
per input. There are a total of 4 available inputs that can be
used to protect up to 4 external signal or bus lines. Over-
voltage protection is from the IN (Pins 1 - 4) to V+ or V-.
The SCR structures are designed for fast triggering at a
threshold of one +V
BE
diode threshold above V+ (Pin 5,6)
or one –V
BE
diode threshold below V- (Pin 7,8). From an
IN input, a clamp to V+ is activated if a transient pulse
causes the input to be increased to a voltage level greater
than one V
BE
above V+. A similar clamp to V- is activated if
a negative pulse, one V
BE
less than V-, is applied to an IN
input.
Refer to Fig 1 and Table 1 for further details. Refer to
Application Note AN9304 and AN9612 for further detail.
• Microprocessor/Logic
Input Protection
• Data Bus Protection
• Analog Device Input
Protection
• Voltage Clamp
Pinout
Functional Block Diagram
V+
V-
IN
IN
IN
1
5, 6
2
7, 8
3, 4
SP725
(SOIC)
1
2
3
4
8
7
6
5
In
In
In
V+
V+
V-
In
V-
Life Support Note:
Not Intended for Use in Life Support or Life Saving Applications
The products shown herein are not designed for use in life sustaining or life saving
applications unless otherwise expressly indicated.
RoHS
Pb
GREEN
SP725 Series 5pF 8kV Diode Array
Additional Information
Datasheet
Samples
Resources
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1 2 3 4 5 6

Summary of Contents

Page 1 - TVS Diode Arrays (SPA

© 2013 Littelfuse, Inc.Specifications are subject to change without notice. Revised: 04/24/13TVS Diode Arrays (SPA® Diodes)General Purpose ESD Protecti

Page 2 - Diodes)

© 2013 Littelfuse, Inc.Specifications are subject to change without notice. Revised: 04/24/13TVS Diode Arrays (SPA® Diodes)General Purpose ESD Protecti

Page 3

© 2013 Littelfuse, Inc.Specifications are subject to change without notice. Revised: 04/24/13TVS Diode Arrays (SPA® Diodes)General Purpose ESD Protecti

Page 4

© 2013 Littelfuse, Inc.Specifications are subject to change without notice. Revised: 04/24/13TVS Diode Arrays (SPA® Diodes)General Purpose ESD Protecti

Page 5 - Soldering Parameters

© 2013 Littelfuse, Inc.Specifications are subject to change without notice. Revised: 04/24/13TVS Diode Arrays (SPA® Diodes)General Purpose ESD Protecti

Page 6

© 2013 Littelfuse, Inc.Specifications are subject to change without notice. Revised: 04/24/13TVS Diode Arrays (SPA® Diodes)General Purpose ESD Protecti

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