SI2414 SILABS [Silicon Laboratories], SI2414 Datasheet - Page 72

• Manufacturer Part Number: SI2414
• Manufacturer: SILABS [Silicon Laboratories]

Si2456/Si2433/Si2414
A
Introduction
Designs using the Si2456/33/14 pass all overcurrent
and
compliance with a couple of considerations.
Figure 14 shows the designs that can pass the UL1950
overvoltage tests as well as electromagnetic emissions.
The top schematic of Figure 14 shows the configuration
in which the ferrite beads (FB1, FB2) are on the
unprotected side of the sidactor (RV1). For this
configuration, the current rating of the ferrite beads
must be 6 A.
The bottom schematic of Figure 14 shows the
72
P P E N D I X
overvoltage
RV1
1000
1000
Ω
Ω
C25
C24
@ 100 MHz, 200 m A
@ 100 MHz, 200 m A
tests
B— UL1 950 3
Figure 14. Circuits that Pass all UL1950 Overvoltage Tests
for
FB1
FB2
C24
C25
UL1950
3rd
Note: In this configuration, C24 and C25 are used for
em issions testing.
Edition
RV1
R D
Fuse/PTC
Rev. 0.9
1.25 A
E
configuration in which the ferrite beads (FB1, FB2) are
on the protected side of the sidactor (RV1). For this
design, the ferrite beads can be rated at 200 mA.
In a cost-optimized design, it is important to remember
that compliance to UL1950 does not always require
overvoltage tests. It is best to plan ahead and know
which overvoltage test applies to your system. System-
level elements in the construction, such as fire
enclosure and spacing requirements, need to be
considered during the design stages. Consult with your
Professional Testing Agency during the design of the
product to determine which tests apply to your system.
D I T I O N
75
75
Fuse/PTC
1.25 A
Ω
Ω
@ 100 MHz, 6A
@ 100 MHz, 6A
FB1
FB2
RING
RING
TIP
TIP