LTM8042IV-1#PBF Linear Technology, LTM8042IV-1#PBF Datasheet - Page 6

• Manufacturer Part Number: LTM8042IV-1#PBF
• Description: IC, LED DRVR, LGA56
• Manufacturer: Linear Technology

Specifications of LTM8042IV-1#PBF

• Led Driver Application: Display Backlighting, Automotive And Avionic Lighting
• No. Of Outputs: 1
• Output Current: 350mA
• Input Voltage: 3V To 30V
• Dimming Control Type: PWM / Analog
• Topology: Boost (Step Up)

LTM8042/LTM8042-1
TYPICAL PERFORMANCE CHARACTERISTICS
LTM8042
6
100
80
60
40
20
20
18
16
14
12
10
0
8
6
4
2
0
0
0
Junction Temperature Rise
vs Load, Boost Operation,
10.9V at 1A LED String
LED Current vs CTL Voltage
1000
200
900
800
700
600
500
400
300
200
100
200
0
0
ADJUST VOLTAGE (mV)
Maximum LED Current
vs V
LED CURRENT (mA)
400
400
IN
5
, Buck Mode
600
10
600
800
7V
V
IN
IN
15
(N)
800
1000
80421 G20
80421 G23
20
1200
1000
25
80421 G18
30
40
35
30
25
20
15
10
25
20
15
10
5
0
5
0
0
0
Junction Temperature Rise
vs Load, Boost Operation,
13.6V at 1A LED String
Quiescent Current
vs Input Voltage, Open LED
3.8V AT 1A
7.4V AT 1A
10.9V AT 1A
14.5V AT 1A
18.1V AT 1A
21.4V AT 1A
24.8V AT 1A
5
200
INPUT VOLTAGE (V)
LED CURRENT (mA)
10
400
15
600
20
8V
IN
800
1200
1000
800
600
400
200
25
0
80421 G21
80421 G24
T
0
A
Maximum LED Current vs Input
Voltage, Buck-Boost Mode
1000
= 25°C, unless otherwise noted.
30
10
INPUT VOLTAGE (V)
35
30
25
20
15
10
25
20
15
10
5
0
5
0
0
0
Junction Temperature Rise
vs Load, Boost Operation,
8.3V at 1A LED String
Junction Temperature Rise
vs Load, Boost Operation,
18.1V at 1A LED String
20
200
200
LED CURRENT (mA)
LED CURRENT (mA)
30
400
400
80421 G19
40
600
600
9V
5V
IN
IN
7.4V AT 1A
10.9V AT 1A
14.5V AT 1A
18.1V AT 1A
21.4V AT 1A
24.8V AT 1A
28.2V AT 1A
800
800
80421 G22
80421 G25
80421fa
1000
1000