SC620 Datasheet, PDF (11/16 Pages) Semtech Corporation – Octal LED Driver, General Purpose Current Sink with Serial Interface

POWER MANAGEMENT
Typical Characteristics
Low Current Settings with Anode = V
IN
600
Anode supply = VIN
500μA,VF = 2.80V
500
400
- - -Boundary of cathode = 150mV
300
250μA,VF = 2.73V
200
125μA,VF = 2.68V
100
31.25μA,VF = 2.59V
0
2.5
3
3.5
4
4.5
5
5.5
VIN [V]
SC620
Low Current Settings with Anode = 5V
600
Anode supply = 5V
500μA,VF = 2.79V
500
- - -Boundary of cathode at VIN-1.5V
400
300
250μA,VF = 2.73V
200
125μA,VF = 2.68V
100
31.25μA,VF = 2.59V
0
3.5
3.75
4
4.25
4.5
4.75
5
5.25 5.5
V_IN [V]
Mid Current Settings with Anode = V_IN
16
15mA,VF = 3.27V
14
Anode supply = VIN
12
10mA,VF = 3.20V
10
8
- - - Boundary at cathode = 150mV
6
5mA,VF = 3.08V
4
3
3.25 3.5 3.75
4
4.25 4.5
4.75
5
5.25 5.5
VIN [V]
Mid Current Settings with Anode = 5V
16
15mA,VF = 3.26V
Anode supply = 5V
14
12
10
10mA,VF = 3.19V
8
- - -Boundary of cathode at VIN-1.5V
6
5mA,VF = 3.08V
4
3 3.25 3.5 3.75 4 4.25 4.5 4.75 5 5.25 5.5
V_IN [V]
High Current Settings with Anode = V
IN
33
31.5mA,VF = 3.42V
30
Anode supply = VIN
27
25mA,VF = 3.37V
24
21
- - - Boundary at cathode = 150mV
18
15
15mA,VF = 3.27V
12
10mA,VF = 3.20V
9
3.25 3.5 3.75 4
4.25 4.5 4.75 5
VIN [V]
5.25 5.5
High Current Settings with Anode = 5V
33
31.5mA,VF = 3.39V
29
25mA,VF = 3.35V
25
Anode supply = 5V
- - -Boundary of cathode at VIN-1.5V
21
17
15mA,VF = 3.26V
13
10mA,VF = 3.19V
9
3 3.25 3.5 3.75 4 4.25 4.5 4.75 5 5.25 5.5
V_IN [V]
© 2006 Semtech Corp.
11
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