Brightness (%)

0

10

20

30

40

50

60

70

80

90

100

50

55

60

65

70

75

80

85

90

95

100

D001

VIN=5V

VIN=5V

VIN=12V

VIN=15V

Brightness (%)

0

10

20

30

40

50

60

70

80

90

100

50

55

60

65

70

75

80

85

90

95

100

D001

VIN=5V

VIN=8V

VIN=12V

VIN=15V

TPS61193-Q1

www.ti.com

SNVSAC7 – OCTOBER 2015

8.2.2.3 Application Curves

Load 100mA/string, 3 strings, 2 LEDs per string

Load 100mA/string, 3 strings, 2 LEDs per string

2 x 10

μH, IHLP2525BDER100M

2 x 10

μH, IHLP2525BDER100M

Figure 24. SEPIC Efficiency

Figure 25. System Efficiency

9 Power Supply Recommendations

The device is designed to operate from an automotive battery. Device should be protected from reversal voltage

and voltage dump over 50 V. The resistance of the input supply rail must be low enough so that the input current

transient does not cause too high drop at TPS61193-Q1 VIN pin. If the input supply is connected by using long

Copyright © 2015, Texas Instruments Incorporated

Submit Documentation Feedback

25