LT3466 Linear Technology, LT3466 Datasheet - Page 4

• Manufacturer Part Number: LT3466
• Description: Dual Full Function White LED Step-Up Converter with Built-In Schottky Diodes
• Manufacturer: Linear Technology

LT3466
4
TYPICAL PERFOR A CE CHARACTERISTICS
450
400
350
300
250
200
150
100
44
42
41
40
50
43
0
0
2
Switch Saturation Voltage (V
Open-Circuit Output Clamp
Voltage
T
R
T
V
A
A
T
CE1
4
= 25 C
= 25 C
= 48.7k
50
, V
6
CE2
100
SWITCH CURRENT (mA)
8
1000
10 12
150
100
10
200
V
R
IN
200
V
V
T
OUT2
OUT1
(V)
14
vs Oscillator Frequency
250
16
OSCILLATOR FREQUENCY (kHz)
600
18
300
W
20 22
CESAT
350
1000
3466 G04
3466 G07
U
400
24
)
1400
500
450
400
350
300
250
200
150
100
1800
45
44
43
42
41
40
39
38
37
36
35
50
3466 G10
0
–50
Switch Current Limit vs Duty Cycle
0
Open-Circuit Output Clamp
Voltage
V
R
IN
T
= 48.7k
= 3.6V
20
TEMPERATURE ( C)
T
T
A
0
A
DUTY CYCLE (%)
= –50 C
= 85 C
40
V
V
OUT2
OUT1
60
1200
1000
50
1100
900
800
T
A
2
Oscillator Frequency vs V
80
= 25 C
R
T
4
= 48.7k
3466 G08
3466 G05
6
100
100
8
10 12
V
IN
100
12
10
(V)
90
80
70
60
50
40
30
20
10
14
8
6
4
2
0
0
2
2
Shutdown Quiescent Current
(CTRL1 = CTRL2 = 0V)
Input Current with Output 1 and
Output 2 Open Circuit
16
T
R
A
T
4
4
= 25 C
= 48.7k
18
IN
6
6
20 22
8
8
3466 G11
T
A
10
10
= –50 C
24
V
12
12
V
IN
IN
(V)
(V)
14
14
T
A
16
16
= 25 C
18
18
T
A
= 100 C
20 22
20
3466 G09
22
3466 G06
3466f
24
24