ESDAXXSCX Datasheet, PDF (4/10 Pages) STMicroelectronics – QUAD TRANSIL™ ARRAY FOR ESD PROTECTION

ESDAxxSCx
Figure 6: Clamping voltage versus peak pulse
current (T_j initial = 25 °C).
Rectangular waveform (t_p = 2.5 ms)
Figure 7: Capacitance versus reverse applied
voltage (typical values)
IPP(A)
50.0
10.0
1.0
ESDA19SC6
ESDA17SC6
ESDA14V2SC5/SC6
ESDA6V1SC5/SC6
ESDA5V3SC5/SC6
ESDA25SC6
0.1
0
VCL(V)
tp=2.5µs
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80
C(pF)
500
100
ESDA5V3SC5/SC6
ESDA6V1SC5/SC6
F=1MHz
VOSC=30mVRMS
10
1
2
VR(V)
5
10
ESDA14V2SC5/SC6
ESDA17SC6
ESDA19SC6
ESDA25SC6
20
50
Figure 8: Relative variation of leakage current
versus junction temperature (typical values)
Figure 9: Peak forward voltage drop versus
peak forward current (typical values)
IR[Tj] / IR[Tj=25°C]
500
100
ESDA14V2SC5/SC6
&
ESDA6V1SC5/SC6
ESDA17SC6
&
ESDA19SC6
10
1
25
Tj(°C)
50
75
ESDA25SC6
ESDA5V3SC5/SC6
100
125
5.00
1.00
IFM(A)
ESDA5V3SC5/SC6
ESDA14V2SC5/SC6
&
ESDA6V1SC5/SC6
ESDA19SC6
0.10
VFM(V)
0.01
0.5
1.0
1.5
2.0
2.5
ESDA17SC6
ESDA25SC6
Tj = 25°C
3.0
3.5
4.0
3. ESD PROTECTION BY ESDAxxSCx
Electrostatic discharge (ESD) is a major cause of failure in electronic systems.
Transient Voltage Suppressors (TVS) are an ideal choice for ESD protection. They are capable of
clamping the incoming transient overvoltage to a low enough level such that damage to the protected
semiconductor is prevented.
Surface mount TVS arrays offer the best choice for minimal lead inductance.
They serve as parallel protection elements, connected between the signal line and ground. As the
transient rises above the operating voltage of the device, the TVS array becomes a low impedance path
diverting the transient current to ground.
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