ICL5101_16 Datasheet, PDF (19/44 Pages) Infineon Technologies AG – Resonant controller IC with PFC for LED driver

ICL5101
Functional Description
2.2.7
Long-Term Bus Under voltage
If the bus under voltage exceeds t > 800 ms (Figure 13) the controller forces an under voltage lock-out (UVLO).
The chip supply voltage drops below V_CC = 10.6 V and the chip supply current is below I_CC < 130 µA. When the
Vcc voltage exceeds the 10.6 V threshold again, the IC current consumption is below I_CC < 160 µA. In this case,
the controller resets the timer and restarts with the full start-up procedure, including monitoring, power-up, start-
up, soft start, saturation control, extended saturation mode and run mode.
V_BUSRated
Bus Voltage Drop for t > 800 ms
Restart with full Start Procedure
Interrupt for t > 800 ms
95%
75%
V_CC
16V
UVLO @ 10.6V
RUN Mode
Power Down Mode
UVLO
Monitoring
Power UP
Start Up
Soft Start
Saturation Extended Saturation Run Mode
Control
Control
I_CC
< 6 mA + I_Gate
< 160 µA
<160 µA
< 6 mA + I_Gate
Timer
t = 800ms
I_OUT
Figure 13 Bus Under voltage – Long
Datasheet
19
Rev. 1.3, 2016-01-15