Symbol | Parameter | Conditions | Min | Typ | Max | Unit |
Start-up &Power supply (VDD Pin) |
ISTART | Start-up Current | | | 25 | 50 | μA |
UVLO | Lower Threshold Voltage of
VbD | Vpp Pin ramp down from 18V | 6.6 | 7.2 | 7.5 | V |
VSTART | Start-up Voltage | Vpp Pin ramp up from OV | 15 | 16 | 17 | V |
VDD-CLAMP | VDD clamp voltage | lbp=10mA | 18.6 | 19.5 | 20.4 | V |
Operation Current |
la | Operation current | Fs=40kHz | | 1.5 | | mA |
Current Sense (CS Pin) |
Vcs-TH | Threshold Voltage of Peak
Current Protection | | 487 | 500 | 513 | mV |
LEB1 | Leading Edge Blanking at CS
Pin | | | 500 | | nS |
Auxiliary Winding Detection (DSEN Pin) |
Vov-TH | The over voltage threshold at
DSEN pin | | 2.15 | 2.3 | 2.5 | V |
LEB2 | The Leading Edge Blanking
at DSEN Pin | | | 2.0 | | uS |
Over Temperature Protection |
OTP | Over temperature protection
threshold | | | 155 | | ℃ |
| Over temperature protection
release thysteresis | | | 20 | | ℃ |
Driver Stage (DRV Pin) |
TF | Falling Time | CL=0.5nF, DRV Pin Falls
from Vpp to OV | | 50 | | nS |
Tg | Rising Time | CL=0.5nF, DRVPin Rises
from 0V to Vpo | | 500 | | nS |
lsource | The maximum driver output
current |
VCC=12V | | 540 | | mA |
lsink | The maximum driver Input
current | VCC=12V | | 700 | | mA |