MAX6978 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX6978
Maxim Integrated
MAX6978 Datasheet PDF : 13 Pages
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8-Port, 5.5V 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.) (Note 1)
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 Pulse-Width High
LE Pulse Width (Fault-Detection
Data Valid)
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
LED Output OUT_ Turn-On Fall
Time
LED Output OUT_ Turn-Off Rise
Time
SYMBOL
tCP
tCH
tCL
tDS
tDH
tDO
tDR, tDF
tLW
CONDITIONS
CDOUT = 10pF, 20% to 80%
tLF
tLS
tLRR
tLRF
tCRR
tCRF
tOEH
tOEL
(Note 2)
(Note 2)
(Note 2)
(Note 2)
tf
80% to 20%
tr
20% to 80%
MIN TYP MAX UNITS
40
ns
19
ns
19
ns
4
ns
8
ns
12
32
ns
10
ns
20
ns
20
ns
10
ns
100
ns
280
ns
100
ns
310
ns
100
ns
300
ns
200
ns
120
ns
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