ICE3AR1580VJZ Datasheet, PDF (42/43 Pages) Infineon Technologies AG – Of f -Line SMPS Cur rent Mode Cont rol ler wi th integrated 800V

CoolSET™ F3R80
ICE3AR1580VJZ
Schematic for recommended PCB layout
Guideline for PCB layout design when >3KV lightning surge test applied (refer to Figure 46):
1. Add spark gap
Spark gap is a pair of saw-tooth like copper plate facing each other which can discharge the accumulated
charge during surge test through the sharp point of the saw-tooth plate.
a. Spark Gap 3 and Spark Gap 4, input common mode choke,
L1: Gap separation is around 1.5mm (no safety concern)
b. Spark Gap 1 and Spark Gap 2, Live / Neutral to GROUND:
These 2 Spark Gaps can be used when the lightning surge requirement is>6KV.
230Vac input voltage application, the gap separation is around 5.5mm
115Vac input voltage application, the gap separation is around 3mm
2. Add Y-capacitor (C2 and C3) in the Live and Neutral to ground even though it is a 2-pin input
3. Add negative pulse clamping diode, D11 to the Current sense resistor, R12:
The negative pulse clamping diode can reduce the negative pulse going into the CS pin of the CoolSET™
and reduce the abnormal behavior of the CoolSET™. The diode can be a fast speed diode such as 1N4148.
The principle behind is to drain the high surge voltage from Live/Neutral to Ground without passing through
the sensitive components such as the primary controller, IC11.
Data Sheet
42
V2.0, 2014-01-20