ICB2FL02G Datasheet, PDF (40/55 Pages) Infineon Technologies AG – Smart Ballast Control IC for Fluorescent Lamp Ballasts

2^nd Generation FL-Controller for FL-Ballasts
4
Protection Functions Matrix
Description of Fault
Characteristics of fault
Operating Mode Detection is active
Consequence
Supply voltage Vcc < 14.1V Below start- S 1µs
before power up
up threshold
X
Prevents power up
Supply voltage Vcc < 10.6V Below UVLO S 5µs
after power up
threshold
XX X
X
X
X
X
X
Power down,
Reset failure latch
Current into LVS1 pin <18µA open
S 100µs
before power up
filament HS
X
Prevents power up
Current into LVS2 pin <18µA open
S 100µs
before power up
filament HS
X
Prevents power up
Voltage at RES pin > 1.6V
before power up
open
filament LS
S 100µs
X
Prevents power up
Voltage at RES pin > 3.2V
open
F 620µs
filament LS
X
Power down,latched
Fault Mode, 1 Restart
Bus voltage < 12.5% of rated Open Loop S 1µs
level 10µs after power up
detection
X
Keep Gate drives off, re-
start after Vcc hysteresis
Bus voltage < 12.5%
of rated level
Open Loop N 1µs
detection
X
X
X
X
X
X
Stops PFC FET until
VBUS > 12.5%
Bus voltage < 12.5%
of rated level
Shut down
option
U 625ms
X
Power down, restart
when VBUS> 12.5%
Bus voltage < 75%
Under-
U 84µs
Power down, 100ms
of rated level
voltage
X delay, restart, skip pre-
add. shut down delay 120µs
heating max 7 times
Bus voltage < 95% of rated Timeout max A 80ms
level during start-up
start-up time
X
Power down, 200ms
delay, restart
Bus voltage > 105% of rated Over-
level 10µs after power up
voltage
S 5µs
X
Keep Gate drives off, re-
start after Vcc hysteresis
Bus voltage > 109% of rated PFC
N 5µs
level in active operation
Overvoltage
X
X
X
X
X
X
Stops PFC FET until
VBUS< 105%
Bus voltage > 109% of rated Inverter
U 625ms
level in active operation
Overvoltage
X
Power down, restart
when VBUS<105%
+/- peak level of lamp voltage EOL 1
F 620µs
at Pin LVS above threshold Overvoltage
X
Power down,latched
Fault Mode, 1 Restart
DC level of lamp voltage
above +/- threshold
EOL 2
F 2500ms
Rect. Effect
X
Power down,latched
Fault Mode, 1 Restart
Capacitive Load 2,
Cap.Load 2 F 620µs
operation below resonance Overload
X
Power down,latched
Fault Mode, 1 Restart
Run frequency cannot be
achieved
Timeout
Ignition
F 237ms
X
Power down,latched
Fault Mode, 1 Restart
Voltage at PFCCS pin > 1.0V PFC
N 200ns
Overcurrent
X
X
X
X
X
X
Stops on-time of PFC
FET immediately
Voltage at LSCS pin > 0.8V Inverter
current lim
N 200ns
X
Activates
Ignition control
Voltage at LSCS pin > 0.8V Inverter
F 500ns
overcurrent
X
X
Power down,latched
Fault Mode, 1 Restart
Voltage at LSCS pin > 1.6V Inverter
F 500ns
overcurrent
XX
XX
Power down,latched
Fault Mode, 1 Restart
Voltage at LSCS pin > 0.8V Inverter
A 500ns
& VBUS > 109% (Surge)
overcurrent
X
X
Power down, restart
when VBUS<109%
After jump into latched fault mode F wait
200ms A single restart attempt after delay of internal timer
Reset of failure latch in run mode after
40s
Reset of failure latch by UVLO or 40s in run mode
S = Start-up condition,
N = No Fault,
A = Auto-Restart ,
U = Undervoltage
F = Fault with a single Restart, a second F leads to a latched fault / Note: all values @ typical 50 Hz mains frequency
Preliminary Datasheet
Page 40 of 55
ICB2FL02G
V1.2