Littelfuse SP724 Lead-Free_Green Series - Manual (Page 2)

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/25/13
TVS Diode Arrays
(SPA ® Diodes)
General Purpose ESD Protection - SP724 Series
Absolute Maximum Ratings
Parameter Rating Units
Continuous Supply Voltage, (V+) - (V-) +20 V
Forward Peak Current, I
IN
to V
CC
, GND
(Refer to Figure 5)
±2.2, 100µs A
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 3) θ
JA
o C/W
SOT Package 220 o C/W
Maximum Storage Temperature Range -65 to 150 o C
Maximum Junction Temperature 150 o C
Maximum Lead Temperature
(Soldering 20-40s) (SOT - Lead Tips Only)
260 o C
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.
Note: 3. θ
JA
is measured with the component mounted on an evaluation PC board in free air.
Parameter Symbol Test Conditions Min Typ Max Units
Operating Voltage Range,
V
SUPPLY
= [(V+) - (V-)] (Notes 4, 5)
V
SUPPLY
1 - 20 V
Forward Voltage Drop
Forward Voltage Drop
IN to V- V
FWDL
I
IN
= 1A (Peak Pulse) - 2 - V
IN to V+ V
FWDH
- 2 - V
Input Leakage Current I
IN
-10 1 10 nA
Quiescent Supply Current I
QUIESCENT
V+ = 20V, V- = GND - - 100 nA
Equivalent SCR ON Threshold (Note 6) - 1.1 - V
Equivalent SCR ON Resistance V
FWD
/I
FWD
(Note 6) - 1.0 - Ω
Input Capacitance C
IN
- 3 - pF
Notes:
4. In automotive and other battery charging systems, the SP724 power supply lines should be externally protected for load dump and reverse battery. When the 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 SP724
supply pins to limit reverse battery current to within the rated maximum limits.
5. Bypass capacitors of typically 0.01µF or larger should be connected closely between the V+ and V- Pins for all applications.
6. Refer to the Figure 3 graph for definitions of equivalent “SCR ON Threshold” and “SCR ON Resistance”. These characteristics are given here for information to determine peak current and
dissipation under EOS conditions.
Note:
ESD Ratings and Capability - See Figure 1, Table 1
Typical Application of the SP724
+VCC
INPUT
DRIVERS
SP724 INPUT PROTECTION CIRCUIT (1 OF 4 SHO WN)
OR
SIGNAL
SOURCES
IN 1, 3, 4 AND 6
SP724
V-
TO +VCC
LINEAR OR
DIGITAL IC
INTERFACE
V+
+VCC
0.001µF
FIGURE 4. TYPICAL APPLICATION OF THE SP724 AS AN INPUT CLAMP FOR OVER-VOLTAGE, GREATER THAN 1V BE ABOVE V+ OR
LESS THAN -1V BE BELOW V-
Application as an Input Clamp for Over-voltage, Greater than 1V
BE
Above V+ or less than -1V
BE
below V-)