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SP724 Datasheet(PDF) 2 Page - Littelfuse

Part # SP724
Description  TVS Diode Arrays
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Manufacturer  LITTELFUSE [Littelfuse]
Direct Link  http://www.littelfuse.com
Logo LITTELFUSE - Littelfuse

SP724 Datasheet(HTML) 2 Page - Littelfuse

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TVS Diode Arrays
SP724
SCR Diode Array for ESD and Transient Overvoltage Protection
Absolute Maximum Ratings
Continuous Supply Voltage, (V+) - (V-). ........................ +20V
Forward Peak Current, IIN to VCC , GND
(Refer to Figure 6). ................................±2.2A, 100µs
ESD Ratings and Capability - See Figure 1, Table 1
Thermal Information
Thermal Resistance (Typical, Note 3)
θJA (
o
C/W)
SOT Package . ........................................... 220
Maximum Storage Temperature Range...................... .-65oC to 150oC
Maximum Junction Temperature . .............................150oC
Maximum Lead Temperature (Soldering 10s) . ........................300oC
(SOT - Lead Tips Only)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Operating Voltage Range,
VSUPPLY = [(V+) - (V-)] (Notes 4, 5)
VSUPPLY
1
-
20
V
Forward Voltage Drop
IN to V-
VFWDL
IIN = 1A (Peak Pulse)
-
2
-
V
IN to V+
VFWDH
-2-
V
Input Leakage Current
IIN
-10
1
10
nA
Quiescent Supply Current
IQUIESCENT
V+ = 20V, V- = GND
-
-
100
nA
Equivalent SCR ON Threshold
(Note 6)
-
1.1
-
V
Equivalent SCR ON Resistance
VFWD/IFWD (Note 6)
-
1.0
-
Input Capacitance
CIN
-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.
ESD Rating
ESD rating is dependent on the defined test standard. The evaluation
results for various test standards and methods based on Figure 1 are
shown in Table 1.3
The SP724 has a Level 4 rating when tested to the IEC 61000-4-2
Human Body Model (HBM) standard and connected in a circuit in which
the V+ and V- pins have a return path to ground. Level 4 specifies a
required capability greater than 8kV for direct discharge and greater than
15kV for air discharge.
The “Modified” MIL-STD-3015.7 condition is defined as an “in-circuit”
method of ESD testing, the V+ and V- pins have a return path to
ground.The SP724 ESD capability is greater than 8kV with 100pF
discharged through 1.5kΩ. By strict definition of the standard MIL-
STD-3015.7 method using “pin-to-pin” device testing, the ESD voltage
capability is greater than 2kV.
For the SP724 EIAJ IC121 Machine Model (MM) standard, the ESD capa-
bility is typically greater than 1.8kV with 200pF discharged through 0kΩ.
The Charged Device model is based upon the self-capacitance of the
SOT-23 package through 0kΩ.
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. θJA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications TA = -40oC to 105oC, VIN = 0.5VCC , Unless Otherwise Specified
STANDARD
TYPE/MODE
RD
CD
±VD
IEC 61000-4-2
(Level 4)
HBM, Air Discharge
330Ω 150pF
15kV
HBM, Direct Discharge
330Ω 150pF
8kV
MIL-STD-3015.7 Modified HBM
1.5kΩ 100pF
8kV
Standard HBM
1.5kΩ 100pF
2kV
EIAJ IC121
Machine Model
0kΩ
200pF
400V
US ESD DS 5.3 Charged Device Model
0kΩ
NA
3kV
Upper limit of laboratory test set.
H.V.
SUPPLY
±VD
IN
DUT
CD
R1
IEC 1000-4-2: R1 50 to 100MΩ
RD
CHARGE
SWITCH
DISCHARGE
SWITCH
MIL STD 3015.7: R 11 to 10MΩ
FIGURE 1. ELECTROSTATIC DISCHARGE TEST
TABLE 1. ESD TEST CONDITIONS


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