Littelfuse SP725 Series - Manual (Page 2)

© 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
Absolute Maximum Ratings
Parameter Rating Units
Continuous Supply Voltage, (V+) - (V-) +35 V
Forward Peak Current, I
IN
to V
CC
, I
IN
to GND
(Refer to Figure 5)
± 8, 100 µs A
Peak Pulse Current, 8/20µs ± 14 A
ESD Ratings and Capability (Figure 1, Table 1)
Load Dump and Reverse Battery (Note 2)
Electrical Characteristics T
A
= -40 o C to 105 o C, V
IN
= 0.5V
CC
, Unless Otherwise Specified
Thermal Information
Parameter Rating Units
Thermal Resistance (Typical, Note 1) θ
JA
o C/W
SOIC Package 170 o C/W
Storage Temperature Range -65 to 150 o C
Maximum Junction Temperature 150 o C
Maximum Lead Temperature
(Soldering 20-40s) (SOIC - Lead Tips Only)
260 o C
Parameter Symbol Test Conditions Min Typ Max Units
Operating Voltage Range,
V
SUPPLY
= [(V+) - (V-)]
V
SUPPLY
- 2 to 30 - V
Forward Voltage Drop
I
IN
= 2A (Peak Pulse)
IN to V- V
FWDL
- 2 - V
IN to V+ V
FWDH
- 2 - V
Input Leakage Current I
IN
-20 5 +20 nA
Quiescent Supply Current I
QUIESCENT
- 50 200 nA
Equivalent SCR ON Threshold (Note 3) - 1.1 - V
Equivalent SCR ON Resistance V
FWD
/I
FWD
; (Note 3) - 0.5 - Ω
Input Capacitance C
IN
5 - pF
Input Switching Speed t
ON
- 2 - ns
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress only rating and operation of the device
at these or any other conditions above those indicated in the operational sections of this
specification is not implied.
Notes:
1. θ
JA
is measured with the component mounted on an evaluation PC board in free air
2. In automotive and battery operated systems, the power supply lines should be externally protected for load dump and reverse battery V+ and V- pins are connected to the same supply
voltage source as the device or control line under protection, a current limiting resistor should be connected in series between the external supply and the SP725 supply pins to limit
reverse battery current to within the rated maximum limits. Bypass capacitors of typically 0.01µF or larger from the V+ and V- pins to ground are recommended.
3. Refer to the Figure 3 graph for definitions of equivalent “SCR ON Threshold” and “SCR ON Resistance.” These characteristics are given here for thumb-rule information to determine peak
current and dissipation under EOS conditions.
+V CC
INPUT
DRIVERS
SP725 INPUT PROTECTION CIRCUIT (1 OF 4 SHOWN)
OR
SIGNAL
SOURCES
IN 1 - 4
SP725
V-
TO +V CC
LINEAR OR
DIGITAL IC
INTERFACE
V+
+V CC
(Application as an Input Clamp for Overvoltage, Greater than 1V
BE
Above V+ or less than -1V
BE
below V-)
Typical Application of the SP725