TLD5190QV Datasheet, PDF (31/58 Pages) Infineon Technologies AG – H-Bridge DC/DC Controller for High Power LED Lighting

V_EN/INUVLO
VEN/INUVLOth
t_{ACT IVE}
VIVCC_EXT_RTH,d
+VIVCCX_HYST
V_PWMI
VPWMI,ON
VPWMI,OFF
Switching
activity
I_LED
H-Bridge DC/DC Controller
TLD5190QV
Digital Dimming Function
t
t
TPWMI
tPWMI,H
t
t
t
V_IOUTMON
200mV
t
Softstart
Power ON
Normal
Gate ON
Diagnosis ON
Dim
Gate OFF
Diag OFF
Normal
Gate ON
Diag ON
Dim
Gate OFF
Diag OFF
Normal
Gate ON
Diag ON
Dim
Gate OFF
Diag OFF
Figure 18 Timing Diagram LED Dimming and Start up behavior example ( V_VIN stable in the functional
range and not during startup)
Data Sheet
31
Rev. 1.0, 2016-05-20