ltm8042 Linear Technology Corporation, ltm8042 Datasheet - Page 11

• Manufacturer Part Number: ltm8042
• Description: Ltm8042/ltm8042-1 - ?module Boost Led Driver And Current Source
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
LTM8042-1
400
350
300
250
200
150
100
50
14
12
10
5
4
3
2
1
0
0
8
6
4
2
0
0
0
0
Maximum LED Current vs Input
Voltage, Buck-Boost Mode
Junction Temperature Rise
vs Load, Boost Operation,
6.8V at 350mA LED String
Junction Temperature Rise
vs Load, Boost Operation,
15.5V at 350mA LED String
50
3.2V AT 350mA
6.3V AT 350mA
9.4V AT 350mA
12.4V AT 350mA
15.5V AT 350mA
18.6V AT 350mA
50
10
100
100
LED CURRENT (mA)
INPUT VOLTAGE (V)
LED CURRENT (mA)
150
150
20
5V
200
200
IN
5V
IN
250
250
30
300
300
80421 G63
80421 G60
80421 G66
350
350
40
120
100
80
60
40
20
10
0
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
0
0
0
LED Current vs CTL Voltage
Junction Temperature Rise
vs Load, Boost Operation,
9.4V at 350mA LED String
Junction Temperature Rise
vs Load, Buck Mode,
2.3V at 350mA LED String
50
50
200
100
100
LED CURRENT (mA)
LED CURRENT (mA)
CTL VOLTAGE (mV)
400
150
24V
150
600
IN
5V
200
200
IN
800
12V
250
250
IN
1000
300
300
80421 G61
80421 G64
80421 G67
T
A
1200
350
350
= 25°C, unless otherwise noted.
LTM8042/LTM8042-1
80
70
60
50
40
30
20
10
8
7
6
5
4
3
2
1
0
6
5
4
3
2
1
0
0
0
0
Quiescent Current vs Input
Voltage, Open LED
0
Junction Temperature Rise
vs Load, Boost Operation,
11.2V at 350mA LED String
Junction Temperature Rise
vs Load, Buck Mode,
3.2V at 350mA LED String
50
50
5
100
100
10
LED CURRENT (mA)
LED CURRENT (mA)
INPUT VOLTAGE (V)
150
150
15
12V
5V
IN
5V
IN
200
200
IN
20
250
250
25
11
300
300
30
80421 G65
80421 G68
80421 G62
80421fa
350
350
35