Datasheet

LTC4263-1
6
42631fa
R
ON
vs Temperature Legacy Pin Current vs Voltage
Current Limit and Foldback
LED Pin Pull-Down
vs Load Current
I
DD48
DC Supply Current vs Supply
Voltage with Internal V
DD5
I
DD48
DC Supply Current vs
Supply Voltage with V
DD5
= 5V
I
DD5
DC Supply Current
vs Supply Voltage
TYPICAL PERFORMANCE CHARACTERISTICS
V
DD48
– V
OUT
(V)
0
0
I
OUT
(mA)
75
225
300
375
30 35 40 45
675
42631 G03
150
5 10152025 50
450
525
600
I
LED
LOAD CURRENT (mA)
0
0
V
LED
PIN PULL-DOWN (V)
1
3
4
42631 G04
2
10 20 30 40 50
T
A
= 25°C
INTERNAL V
DD5
V
DD48
(V)
0
0
I
DD48
(mA)
0.5
1.5
2.0
2.5
42631 G07
1.0
10 20 30 40 50 60
25k LOAD WITH
AC ENABLED
NO LOAD
T
A
= 25°C
V
DD48
(V)
0
0
I
DD48
(mA)
0.2
0.6
0.8
1.0
1.2
42631 G08
0.4
10 20 30 40 50 60
25k LOAD WITH
AC ENABLED
NO LOAD
T
A
= 25°C
V
DD5
(V)
4.0
–3
I
DD5
(mA)
–2
0
1
2
42631 G09
–1
4.5 5.0 5.5 6.0
25k LOAD WITH
AC ENABLED
NO LOAD
V
DD48
= 48V
TEMPERATURE (°C)
–40 –20
1.0
R
ON
(Ω)
1.4
2.0
0
40
60
42631 G16
1.2
1.8
1.6
20
80
100
V
LEGACY
(V)
0
I
LEGACY
(μA)
0
20
4
42631 G17
–20
–40
1
2
3
5
40
LEGACY MODE
FORCE POWER ON MODE
COMPLIANT DETECTION MODE