KBMF01SC6 STMicroelectronics, KBMF01SC6 Datasheet - Page 3

• Manufacturer Part Number: KBMF01SC6
• Description: IC EMI FILTER/LINE TERM SOT23-6
• Manufacturer: STMicroelectronics
• Series: IPAD™r

Specifications of KBMF01SC6

• Capacitance: 150pF
• Package / Case: SOT-23-6
• Channels: 2 Channels
• Breakdown Voltage: 6 V
• Termination Style: SMD/SMT
• Power Dissipation Pd: 100 mW
• Operating Temperature Range: 0 C to + 70 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Tolerance: -
• Resistance In Ohms: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-3712-2

2. ESD PROTECTION
The KBMFxxSC6 is particularly optimized to perform ESD protection. ESD protection is based on the use
of device which clamps at:
This protection function is splitted in 2 stages. As shown in figure 4, the ESD strikes are clamped by the
first stage S1 and then its remaining overvoltage is applied to the second stage through the resistor R.
Such a configuration makes the output voltage very low at the V
Figure 4: ESD clamping behavior
To have a good approximation of the remaining voltages at both V
typical dynamical resistance value Rd. By taking into account these following hypothesis : R
and R
The results of the calculation done for V
R
This confirms the very low remaining voltage across the device to be protected. It is also important to note
that in this approximation the parasitic inductance effect was not taken into account. This could be few
tenths of volts during few ns at the input side. This parasitic effect is not present at the output side due the
low current involved after the resistance R
The measurements done here after show very clearly (figure 6) the high efficiency of the ESD protection :
d
= 1 (typ.) give:
ESD Surge
load
V
>R
PP
d
, it gives these formulas:
V
V
- no influence of the parasitic inductances on output stage
- V
input
output
output
Rg
= 31.2 V
= 7.8 V
clamping voltage very close to V
V
V output =
Rd
BR
S1
V input =
PP
V
S
=8kV, R
output
.
Vinput
R s V BR
---------------------------------------------------------------- -
R g V BR
----------------------------------------------------- -
KBMFxxSC6
= V
g
=330
BR
Rs
Voutput
+ R
R g
+
R t
+
R d V input
BR
R d V g
d
(IEC 61000-4-2 standard), V
.I
PP
(positive strike) and -V
output
input
S2
Rd
V
level.
BR
and V
output
F
stages, we give the
(negative strike)
BR
protected
Device
to be
Rload
=7V (typ.) and
t
>R
d
, R
KBMF
g
>R
3/8
d