Diodes ZXSC380 - Manual (Page 4)

ZXSC380
Issue 3 - September 2007 4 www.zetex.com
© Zetex Semiconductors plc 2007
Typical characteristics
LED Current vs Supply Voltage
for L = 22, 47, 68 & 100uH
0
2
4
6
8
10
12
14
16
18
20
1 1.1 1.2 1.3 1.4 1.5
Supply Voltage Vvcc (V)
L
E
D
C
u
rr
e
n
t
ILe
d (m
A
)
L = 100uH L = 68uH L = 47uH L = 22uH
LED Current v s Supply Voltage
for L= 22, 47, 68 & 100uH
0
10
20
30
40
50
60
70
80
1 1.5 2 2.5
Supply Voltage Vvcc (V)
LE
D
C
u
rr
e
n
t I
L
e
d
(m
A
)
3
L = 100uH L = 68uH L = 47uH L=22uH
Frequency vs Supply Voltage
for L= 22, 47, 68 & 100uH
0
50
100
150
200
250
300
350
1 1.5 2 2.5
Supply Voltage Vcc (V)
Fr
eq
u
e
nc
y
(
k
Hz)
3
L = 100uH L = 68uH L = 47uH L = 22uH
Efficiency vs Supply Voltage
for L= 22, 47, 68 & 100uH
0
20
40
60
80
100
120
1 1.5 2 2.5
Supply Voltage Vvcc (V)
E
ff
icien
c
y
(%
)
3
L = 100uH L = 68uH L = 47uH L = 22uH