LTM8042IV-1#PBF Linear Technology, LTM8042IV-1#PBF Datasheet - Page 23

• 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)

APPLICATIONS INFORMATION
Table 4. LTM8042-1 Recommended Values and Configuration for Boost (T
3.7V to 14.7V Connect to BSTIN/BKLED
3.1V to 10.4V Connect to BSTIN/BKLED
4.9V to 14.9V Connect to BSTIN/BKLED
6.1V to 18.8V Connect to BSTIN/BKLED
4.8V to 12.3V Connect to BSTIN/BKLED
8.5V to 20.8V Connect to BSTIN/BKLED
2.2V to 9.2V
1.1V to 3.8V
1.5V to 5.6V
2.4V to 7.1V
2.4V to 3.8V
2.8V to 5.3V
2.7V to 10V
3V to 12.8V
4.1V to 10V
5.8V to 15V
1V to 3.3V
1.2V to 5V
1.6V to 6V
3.2V to 7V
4V to 12V
BKLED
(BSTIN/
RANGE
V
IN
–
)
Connect to BSTIN/BKLED
Connect to BSTIN/BKLED
Connect to BSTIN/BKLED
Connect to BSTIN/BKLED
Connect to BSTIN/BKLED
3V to 30V
3V to 30V
3V to 30V
3V to 30V
3V to 30V
3V to 30V
3V to 30V
3V to 30V
3V to 30V
3V to 30V
V
CC
–
–
–
–
–
–
–
–
–
–
–
2.2μF 1206 X7R 10V 2.2μF 1206 X7R 16V
2.2μF 1206 X7R 16V 2.2μF 1206 X7R 16V 12V to 16V
2.2μF 1206 X7R 16V 2.2μF 1206 X7R 25V 15V to 21V
2.2μF 1206 X7R 25V 2.2μF 1206 X7R 50V 24V to 32V
1μF 0805 X7R 10V
1μF 0805 X7R 10V
1μF 0805 X7R 10V
1μF 0805 X7R 10V
1μF 0805 X7R 16V
1μF 0805 X7R 16V
1μF 0805 X7R 16V
1μF 0805 X7R 10V
1μF 0805 X7R 16V
1μF 0805 X7R 16V
1μF 0805 X7R 25V
1μF 0805 X7R 10V
1μF 0805 X7R 10V
1μF 0805 X7R 10V
1μF 1206 X7R 10V
1μF 1206 X7R 16V
1μF 1206 X7R 16V
(BSTIN/BKLED
TO GND)
C
IN
–
2.2μF 1206 X7R 10V
2.2μF 1206 X7R 10V
2.2μF 1206 X7R 25V 18V to 24V
2.2μF 1206 X7R 50V 24V to 32V
4.7μF 0805 X7R 10V
2.2μF 1206 X7R 10V
2.2μF 1206 X7R 16V
2.2μF 1206 X7R 16V 12V to 16V
2.2μF 1206 X7R 25V 15V to 21V
2.2μF 1206 X7R 25V 18V to 24V
1μF 0805 X7R 10V
1μF 0805 X7R 10V
1μF 0805 X7R 16V
1μF 0805 X7R 16V
1μF 0805 X7R 25V
1μF 0805 X7R 25V
1μF 0805 X7R 50V
(BSTOUT/BKIN
TO GND)
C
OUT
A
= 25°C)
12V to 16V
15V to 21V
18V to 24V
24V to 32V
8V to 12V
8V to 12V
8V to 12V
VOLTAGE
(LED
4V to 6V
6V to 9V
4V to 6V
6V to 9V
4V to 6V
6V to 9V
STRING
GND)
LED
+
TO
LTM8042/LTM8042-1
CURRENT R
STRING
100mA
100mA
100mA
100mA
100mA
100mA
100mA
350mA
350mA
350mA
350mA
350mA
350mA
350mA
35mA
35mA
35mA
35mA
35mA
35mA
35mA
LED
1.27k 86.6k
1.27k 76.8k
1.27k 69.8k
1.27k 48.7k
1.27k 37.4k
1.27k 33.2k
1.27k 33.2k
3.40k 86.6k
3.40k 76.8k
3.40k 69.8k
3.40k 48.7k
3.40k 37.4k
3.40k 30.1k
3.40k 24.9k
19.6k 27.4k
19.6k 27.4k
19.6k 27.4k
19.6k 19.6k
19.6k 18.2k
19.6k 16.9k
19.6k 16.9k
CTL
(OPTI-
MAL)
RT
(OPTI-
MAL)
250k 69.8k 300k
275k 61.9k 330k
300k 57.6k 350k
400k 37.4k 500k
500k 30.1k 600k
550k 27.4k 650k
550k 27.4k 650k
250k 37.4k 500k
275k 37.4k 500k
300k 37.4k 500k
400k 30.1k 600k
500k 30.1k 600k
600k 24.9k 700k
700k 21.0k 800k
650k 16.9k 950k
650k 16.9k 950k
650k 16.9k 950k
850k 15.8k
900k 12.4k 1.2M
950k 14.0k 1.1M
950k 14.0k 1.1M
f
(MIN)
RT
23
(MAX)
80421fa
1M
f