Si3400/Si3401
Rev. 0.9 5
Table 2. Absolute Maximum Ratings (Transient)
1
Transient surge defined in IEC60060 as a 1000 V impulse of either polarity applied across CT1–CT2 or SP1–SP2. The shape of
the impulse shall have a 300 ns full rise time and a 50 µs half fall time, with 201 Ω source impedance.
Type Description Rating Unit
Voltage CT1 to CT2 –82 to 82
V
SP1 to SP2 –82 to 82
VPOS
2
–0.7 to 80
HSO –0.7 to 80
VSS1, VSS2, or VSSA –0.7 to 80
SWO –0.7 to 80
PLOSS
to VPOS
2
–80 to 0.7
RDET –0.7 to 80
Current CT1, CT2, SP1, SP2 –5 to 5
A
VPOS
2
–5 to 5
ESD
3
HBM, all pins –2 to 2 kV
Notes:
1. Unless otherwise noted, all voltages referenced to VNEG. Permanent device damage may occur if the maximum ratings
are exceeded. Functional operation should be restricted to those conditions specified in the operational sections of this
data sheet. Exposure to absolute maximum rating conditions for extended periods may adversely affect device
reliability.
2. VPOS is equal to VPOSF and VPOSS tied together for test condition purposes.
3. For more information regarding system-level ESD tolerance, refer to “AN315: Robust Electrical Surge Immunity for PoE
PDs through Integrated Protection”.
Table 3. Recommended Operating Conditions
Description Symbol Min Typ Max Units
|CT1 – CT2| or |SP1 – SP2| VPORT 2.8 — 57 V
Ambient Operating Temperature TA –40 25 85 °C
Note: Unless otherwise noted, all voltages referenced to VNEG. All minimum and maximum specifications are guaranteed
and apply across the recommended operating conditions. Typical values apply at nominal supply voltage and ambient
temperature unless otherwise noted.
