Datasheet LT3745 (Analog Devices) - 7

LT3745
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. 100Hz 8:1 GS Dimming 100Hz 4096:1 GS Dimming 500Hz 4096:1 GS Dimming
ILED15 ILED15 ILED15 50mA/DIV 50mA/DIV 50mA/DIV VOUT VOUT VOUT 2V/DIV 2V/DIV 2V/DIV VLED15 VLED15 VLED15 2V/DIV 2V/DIV 2V/DIV VPWMCK VPWMCK VPWMCK 5V/DIV 5V/DIV 5V/DIV 5ms/DIV 3745 G01 500ns/DIV 3745 G02 500ns/DIV 3745 G03 CIRCUIT OF FIGURE 7: CIRCUIT OF FIGURE 7: CIRCUIT OF FIGURE 7: DC15 = 0×20 DC15 = 0×20 DC15 = 0×20 GS15 = 0×200 GS15 = 0×001 GS15 = 0×001
200Hz Two-Level DC Dimming 200Hz Four-Level DC Dimming Adaptive LED Bus Voltage I
I V LED15 ILED15 OUT 50mA/DIV 50mA/DIV 0.5V/DIV VOUT VOUT 2V/DIV 2V/DIV IL VLED15 VLED15 0.5A/DIV 2V/DIV 2V/DIV VSCKI VSCKI 5V/DIV (a) (b) (c) (a) (b) (c) 5V/DIV (a) (b) (c) (d) 1ms/DIV 3745 G04 0.5ms/DIV 3745 G05 2ms/DIV 3745 G06 CIRCUIT OF FIGURE 7: CIRCUIT OF FIGURE 7: CIRCUIT OF FIGURE 7: (a) EN = 1, GS15 = 0×FFF (c) EN = 1, DC15 = 0×00 (a) EN = 0, GS15 = 0×FFF (c) EN = 1, DC15 = 0×00 DC00-15 = 0×3F, GS00-15 = 0×FFF (b) EN = 1, DC15 = 0×3F (b) EN = 1, DC15 = 0×3F (d) EN = 1, DC15 = 0×20
Adaptive LED Bus Voltage II Adaptive LED Bus Voltage III Adaptive LED Bus Voltage IV
VOUT 0.5V/DIV VOUT VOUT 0.5V/DIV 0.5V/DIV IL IL IL 0.5A/DIV 0.5A/DIV 0.5A/DIV 2ms/DIV 3745 G07 2ms/DIV 3745 G08 2ms/DIV 3745 G09 CIRCUIT OF FIGURE 7: CIRCUIT OF FIGURE 7: CIRCUIT OF FIGURE 7: DC00-15 = 0×20, GS00-15 = 0×800 DC00-15 = 0×3F, GS00-01 = 0×1FF, GS02-03 = 0×3FF, DC00-03 = 0×3F, GS00-03 = 0×3FF, DC04-07 = 0×2F, GS04-05 = 0×5FF, GS06-07 = 0×7FF, GS08-09 = 0×9FF, GS04-07 = 0×7FF, DC08-11 = 0×1F, GS08-11 = 0×BFF, GS10-11 = 0×BFF, GS12-13 = 0×DFF, GS14-15 = 0×FFF DC12-15 = 0×0F, GS12-15 = 0×FFF 3745f 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Package Description Typical Application Related Parts