Integrated 8-Channel LED Drivers with

Switch-Mode Boost and SEPIC Controller

6

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3.3V TIMING CHARACTERISTICS

(V+ = +3V to < +4.5V, AGND = PGND = 0V; all voltages are measured with respect to PGND, unless otherwise noted. TA = TJ = -40°C

to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 5)

PARAMETERS

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

INTERFACE TIMING CHARACTERISTICS

CLK Clock Period

52

ns

CLK Pulse-Width High

24

ns

CLK Pulse-Width Low

24

ns

DIN Setup Time

4ns

DIN Hold Time

8ns

DOUT Propagation Delay

12

70

ns

DOUT Rise Time

12

ns

DOUT Fall Time

12

ns

LE Pulse-Width High

20

ns

LE Setup Time

15

ns

LE Rising to OUT_ Rising Delay

(Note 6)

140

ns

LE Rising to OUT_ Falling Delay

(Note 6)

350

ns

CLK Rising to OUT_ Rising Delay

(Note 6)

140

ns

CLK Rising to OUT_ Falling Delay

(Note 6)

350

ns

OE Rising to OUT_ Rising Delay

(Note 6)

140

ns

OE Falling to OUT_ Falling Delay

(Note 6)

350

ns

OUT_ Turn-On Fall Time

80% to 20% (Note 6)

275

ns

OUT_ Turn-Off Rise Time

20% to 80% (Note 6)

150

ns

Note 2: Guaranteed by design, not production tested.

Note 5: See Figures 3 and 4.