Datasheet

Electrical characteristics LED5000
8/51 Doc ID 023951 Rev 1
3 Electrical characteristics
All tests performed at T
J
= 25 °C, V
CC
= 12 V, V
INH
=0 V unless otherwise specified. The
specification is guaranteed from (-40 to +125) T
J
temperature range by design,
characterization and statistical correlation.
Table 5. Electrical characteristics
Symbol Parameter Test condition Min Typ Max Unit
V
IN
Operating input
voltage range
5.5 48 V
R
DS(on)
MOSFET on
resistance
I
SW
=1 A 0.2 0.4 Ω
I
SW
Maximum limiting
current
3.7 4.5 5.2 A
t
HICCUP
Hiccup time 16 ms
f
SW
Switching frequency 600 850 1000 kHz
Duty cycle
(1)
90 %
T
ON MIN
Minimum conduction
time of the power
element
(1)
90 ns
T
OFF MIN
Minimum conduction
time of the external
diode
(1)
75 90 120 ns
DC characteristics
V
FB
Voltage feedback 194 200 206 mV
I
FB
FB biasing current 50 nA
I
q
Quiescent current
V
DIM
>1.5 V 1.3 2 mA
V
DIM
>1.5 V, V
IN
=48 V 1.7 2.4 mA
I
qst-by
Standby quiescent
current
V
INH
>1.5 V 12 16 34 μA
Inhibit
V
INH
Inhibit levels
Device ON
V
IN
=5.5 V to 48 V
0.5 V
Device OFF
V
IN
=5.5 V to 48 V
1.5 V
I
INH
Inhibit biasing current V
INH
=5 V 0.7 1.6 2.5 μA