Integrated 8-Channel LED Driver with
Switch-Mode Boost and SEPIC Controller
5V TIMING CHARACTERISTICS
(V+ = +4.5V to +5.5V, V AGND = V 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)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
INTERFACE TIMING CHARACTERISTICS
CLK Clock Period
CLK Pulse-Width High
CLK Pulse-Width Low
DIN Setup Time
DIN Hold Time
t CP
t CH
t CL
t DS
t DH
40
19
19
4
8
ns
ns
ns
ns
ns
DOUT Propagation Delay
DOUT Rise Time
DOUT Fall Time
LE Pulse-Width High
LE Setup Time
LE Rising to OUT_ Rising Delay
LE Rising to OUT_ Falling Delay
CLK Rising to OUT_ Rising Delay
CLK Rising to OUT_ Falling
Delay
OE Rising to OUT_ Rising Delay
OE Falling to OUT_ Falling Delay
OUT_ Turn-On Fall Time
OUT_ Turn-Off Rise Time
t DO
t DR
t DF
t LW
t LS
t LRR
t LRF
t CRR
t CRF
t OE R
t OE F
t F
t R
C DOUT = 10pF, 20% to 80%
C DOUT = 10pF, 80% to 20%
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
80% to 20% (Note 6)
20% to 80% (Note 6)
12
20
15
50
10
10
110
325
110
325
110
325
210
130
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
_______________________________________________________________________________________
5
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