ltm8042 Linear Technology Corporation, ltm8042 Datasheet - Page 8

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

LTM8042/LTM8042-1
TYPICAL PERFORMANCE CHARACTERISTICS
LTM8042
LTM8042/LTM8042-1
LTM8042-1
8
95
90
85
80
75
70
65
50
45
40
35
30
25
20
15
10
5
0
2
0
Efficiency vs V
6.7V at 350mA LED String
Junction Temperature Rise
vs Load, Buck-Boost Mode,
10.9V at 1A LED String
200
3
LED CURRENT (mA)
400
V
IN
IN
, Boost Operation,
4
(V)
600
12V
IN
5
800
80421 G39
80421 G35
1000
6
160
140
120
100
80
60
40
20
0
0
60
50
40
30
20
10
95
90
85
80
75
70
65
RUN Pin Current vs Voltage
0
2.5
0
Junction Temperature Rise
vs Load, Buck-Boost Mode,
13.6V at 1A LED String
Efficiency vs V
9.7V at 350mA LED String
10
200
RUN VOLTAGE (V)
LED CURRENT (mA)
4.5
400
20
IN
V
IN
, Boost Operation,
12V
(V)
600
IN
6.5
30
800
80421 G38
16V
80421 G36
80421 G40
T
40
8.5
IN
A
1000
= 25°C, unless otherwise noted.
95
90
85
80
75
70
65
25
20
15
10
5
0
3
0
Junction Temperature Rise
vs Load, Buck-Boost Mode,
15.5V at 350mA LED String
Efficiency vs V
12.6V at 350mA LED String
50
5
100
LED CURRENT (mA)
150
V
IN
7
IN
, Boost Operation,
(V)
12V
200
IN
9
250
300
80421 G41
11
80421 G37
80421fa
350