16-Port, 36V Constant-Current LED Driver with
LED Fault Detection and Watchdog
5V TIMING CHARACTERISTICS
(Typical Operating Circuit, V+ = 4.5V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
CLK_ Clock Period
CLK_ Pulse-Width High
CLK_ Pulse-Width Low
DIN_ Setup Time
DIN_ Hold Time
DOUT_ Propagation Delay
DOUT_ Rise and Fall Time
LE Setup Time
LE Rising to OUT_ Rising Delay
LE Rising to OUT_ Falling Delay
CLK_ Rising to OUT_ Rising
Delay
SYMBOL
tCP
tCH
tCL
tDS
tDH
tDO
tLS
tLRR
tLRF
CONDITIONS
CDOUT = 10pF, 20% to 80%
(Note 3)
(Note 3)
tCRR (Note 3)
MIN TYP
40
19
19
4
8
12
10
CLK_ Rising to OUT_ Falling
Delay
OE_ Rising to OUT_ Rising Delay
OE_ Falling to OUT_ Falling Delay
LED Output OUT_ Turn-On Fall
Time
tCRF
tOEH
tOEL
tf
(Note 3)
(Note 3)
(Note 3)
80% to 20%; pullup resistor = 65Ω (Note 3)
LED Output OUT_ Turn-Off Rise
Time
tr
20% to 80%; pullup resistor = 65Ω (Note 3)
MAX
32
10
100
300
100
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
310
ns
100
ns
320
ns
120
ns
120
ns
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