ICL5101_16 Datasheet, PDF (12/44 Pages) Infineon Technologies AG – Resonant controller IC with PFC for LED driver

ICL5101
Functional Description
Start-Up
The device is powered through the VCC pin. All device supply voltages are internally generated from VCC
voltage. Typical Start-Up Procedure below Figure 5 shows a typical start-up procedure of the device. The
following subsections describe the phases in detail.
Frequency /
Output Voltage
135 kHz
fStartUp_FIX
VOUT = 90%
VOUT = 100%
45 kHz
0 kHz
VPFCVS
60ms
100 %
35ms
10-80ms 11ms
40 - 237ms
VPFCVS
625ms
fRUN_SET
Mode /
Time
VDCIN
VLSGD / V_CC
VCC = 17.5 V
VCC
VCC = 14.1 V
VCC = 10.6 V
VCC = 0 V
UVLO
Monitoring
Figure 5 Typical Start-Up Procedure
Low Side Gate Drive
Saturation Control
Run Mode
Mode /
Time
Mode /
Time
Datasheet
12
Rev. 1.3, 2016-01-15