Datasheet

DocID15234 Rev 6 15/40
VNI8200XP Electrical characteristics
5.7 LED driving array
10.5 V < V
CC
< 36 V; -40 °C < T
J
< 125 °C; unless otherwise specified.
I
lim
Limitation current 0.55 0.9 A
I
qop
Total operating quiescent
current
0.6 mA
I
qst-by
Total standby quiescent
current
Regulator standby 15.8 µA
f
s
Switching frequency 400 kHz
D
max
Maximum duty cycle 80% %
Ton
min
Minimum on-time 150 ns
f
sc
Frequency in short-circuit
condition
50 kHz
Table 10. Step-down switching regulator (continued)
Symbol Parameter Test conditions Min. Typ. Max. Unit
Table 11. LED driving array
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
COL
Output source voltage at COL pins
Output current 0 to
7 mA
V
REG
-0.3 V
REG
-0.2 V
V
ROW
Open drain voltage at ROW pins
Output current 0 to
15 mA
0.2 0.3 V
Fsw
Row refresh frequency with
duty=25%
780 Hz