Datasheet

LTM8040
4
8040fa
TYPICAL PERFORMANCE CHARACTERISTICS
Minimum Start Voltage vs
Output Current (3.3V at 1A LEDs)
SHDN Current vs Voltage
BIAS Current vs Output Current
12V
IN
, (Single 2.7V at 1A LED)
BIAS Current vs Output Current
24V
IN
, (Three 3.3V at 1A LEDs)
Temperature Rise vs Output Current
(2.7V at 1A LEDs, 12V
IN
)
Minimum Running Voltage vs
Output Voltage
Minimum Start Voltage vs
Output Current (2.7V at 1A LEDs)
Input Current vs Input Voltage
Output Short Circuited
OUTPUT VOLTAGE (V)
0
2
INPUT VOLTAGE (V)
4
8
10
12
42
8040 G08
6
14
86
1210
1A LOAD
0.5A LOAD
0.1A LOAD
OUTPUT CURRENT (mA)
0
0
2
INPUT VOLTAGE (V)
4
8
10
12
400200
8040 G09
6
14
800600
1000
SINGLE LED
2 LEDs
3 LEDs
4 LEDs
OUTPUT CURRENT (mA)
0
0
2
INPUT VOLTAGE (V)
4
8
10
12
400200
8040 G10
6
14
800600
1000
SINGLE LED
2 LEDs
3 LEDs
SHUTDOWN PIN VOLTAGE (V)
0
0
SHUTDOWN CURRENT (μA)
10
105
8040 G11
70
60
50
40
30
20
2015
25 30 35 40
OUTPUT CURRENT (mA)
0
0
BIAS CURRENT (mA)
2
6
8
10
400200
8040 G12
4
12
800600
1000
V
BIAS
= 5V
V
BIAS
= 3.2V
V
BIAS
= 12V
OUTPUT CURRENT (mA)
0
0
BIAS CURRENT (mA)
2
6
8
10
12
14
16
18
400200
8040 G13
4
20
800600
1000
V
BIAS
= 5V
V
BIAS
= 3.2V
V
BIAS
= 12V
INPUT VOLTAGE (V)
0
0
INPUT CURRENT (mA)
20
105
8040 G14
100
80
60
40
2015
25 30 35 40
OUTPUT CURRENT (mA)
0
2
TEMPERATURE RISE (°C)
12
10
8
400200
8040 G15
22
20
18
16
14
6
4
800600
1000
SINGLE LED
2 LEDs
3 LEDs
4 LEDs
(T
A
= 25°C, confi gured per Table 2 unless
otherwise noted)