ICE3PCS01G Datasheet, PDF (16/24 Pages) Infineon Technologies AG – Standalone Power Factor Correction (PFC) Controller in Continuous Conduction Mode (CCM)

3.10 Protection Function
CCM-PFC
ICE3PCS01G
Functional Description
Description of Fault
Fault-Type Min. Duration Consequence
of Effect
Voltage at Pin ISENSE <
PCL
-200mV
200 ns
Gate Driver is turned off immediately during
current switching cycle
Voltage at Pin BOP < 1V
BOP
20 µs
Gate Driver is turned off. Soft-restart after BOP
voltage > 1.25V
Voltage at Pin VSENSE < 0.5V OLP
1 µs
Power down. Soft-restart after VSENSE voltage
> 0.5V
Voltage at Pin VSENSE < 0.8V OLP
1 µs
when boost follower is active
Disable boost follower function.
Voltage at Pin VSENSE >
108% of rated level
OVP1
12 µs
Gate Driver is turned off until VSENSE voltage <
2.5V.
Voltage at Pin OVP > 2.5V and OVP1 and
Voltage at Pin VSENSE >
OVP2
108% of rated level
12 µs
Gate Driver is turned off until bulk voltage drops
out of both OVP hysteresis
Voltage at Pin OVP > 2.5V
OVP2 (latch 12 µs
mode)
Latched fault mode. Soft-restart after V_CC UVLO
Voltage at Pin OVP > 2.5V
OVP2
(auto-
restart
mode)
12 µs
Gate Driver is turned off. Soft-restart after OVP
voltage < 2.3V
Voltage at Pin VBTHL_EN <
0.5V after V_CC > 7V
Voltage at Pin VBTHL_EN >
0.5V after V_CC > 7V
Voltage at Pin VBTHL_EN <
0.5V when Vref outputs 5V
OVP2 mode 18 µs
detection
OVP2 mode 18 µs
detection
Disable
9 µs
function
IC enters soft-restart mode after OVP2
released.
IC enters latch mode after OVP2 released.
Power down. Soft-restart after disable signal is
released.
Version 2.0
16
5 May 2010