16-Port, 36V Constant-Current LED Driver

_______________________________________________________________________________________

3

5V TIMING CHARACTERISTICS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

CLK Clock Period

40

ns

CLK Pulse-Width High

19

ns

CLK Pulse-Width Low

19

ns

DIN Setup Time

4ns

DIN Hold Time

8ns

DOUT Propagation Delay

12

32

ns

DOUT Rise and Fall Time

10

ns

LE Pulse-Width High

20

ns

LE Setup Time

10

ns

LE Rising to OUT_ Rising Delay

(Note 3)

100

ns

LE Rising to OUT_ Falling Delay

(Note 3)

300

ns

CLK Rising to OUT_ Rising Delay

(Note 3)

100

ns

CLK Rising to OUT_ Falling Delay

(Note 3)

310

ns

OE Rising to OUT_ Rising Delay

(Note 3)

100

ns

OE Falling to OUT_ Falling Delay

(Note 3)

320

ns

LED Output OUT_ Turn-On Fall

Time

80% to 20%, pullup resistor = 65

Ω

120

ns

LED Output OUT_ Turn-Off Rise

Time

20% to 80%, pullup resistor = 65

Ω

120

ns

Note 2: See Figure 3.

Note 3: A 65

Ω pullup resistor connected from OUT_ to 5.5V.