Rainbow-electronics MAX6983 Bedienungsanleitung PDF herunterladen (Seite 4)

MAX6983

16-Port, 36V Constant-Current LED Driver with

LED Fault Detection and Watchdog

4 _______________________________________________________________________________________

SUPPLY CURRENT vs. SUPPLY VOLTAGE

(INTERFACE IDLE, ALL OUTPUTS OFF, R

SET

= 720Ω)

MAX6983 toc01

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (mA)

5.04.54.03.5

1.85

1.90

1.95

2.00

1.80

3.0 5.5

= +125°C

= +85°C

= -40°C

= +25°C

SUPPLY CURRENT vs. SUPPLY VOLTAGE

(INTERFACE IDLE, ALL OUTPUTS OFF, R

SET

= 360Ω)

MAX6983 toc02

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (mA)

5.04.54.03.5

3.55

3.60

3.65

3.70

3.50

3.0 5.5

= +125

= +85

=-40

= +25

SUPPLY CURRENT vs. SUPPLY VOLTAGE

(INTERFACE IDLE, ALL OUTPUTS ON, R

SET

= 720Ω)

MAX6983 toc03

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (mA)

5.04.54.03.5

= +125

= +85

= -40°C

= +25

3.0 5.5

Typical Operating Characteristics

= +25°C, unless otherwise noted.)

3.3V TIMING CHARACTERISTICS

(Typical Operating Circuit, V+ = 3V to 5.5V, T

= T

MIN

to T

MAX

, unless otherwise noted.) (Notes 1, 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CLK_ Clock Period t

52 ns

CLK_ Pulse-Width High t

24 ns

CLK_ Pulse-Width Low t

24 ns

DIN_ Setup Time t

4ns

DIN_ Hold Time t

8ns

DOUT_ Propagation Delay t

12 50 ns

DOUT_ Rise and Fall Time C

DOUT

= 10pF, 20% to 80% 12 ns

LE Setup Time t

15 ns

LE Rising to OUT_ Rising Delay (Note 3) 120 ns

LE Rising to OUT_ Falling Delay (Note 3) 310 ns

C LK_ Ri si ng to OU T_ Ri si ng D el ay (Note 3) 120 ns

C LK_ Ri si ng to OU T_ Fal l i ng D el ay (Note 3) 330 ns

OE_ Rising to OUT_ Rising Delay t

OEH

(Note 3) 120 ns

OE_ Falling to OUT_ Falling Delay t

OEL

(Note 3) 330 ns

LED Output OUT_ Turn-On Fall

Time

80% to 20% (Note 3) 120 ns

LED Output OUT_ Turn-Off Rise

Time

20% to 80% (Note 3) 120 ns

Note 1: All parameters tested at T

= +25°C. Specifications over temperature are guaranteed by design.

Note 2: See Figure 3.

Note 3: A 65Ω pullup resistor is connected from OUT_ to 5.5V.

1 2 3 4 5 6 7 8 9 10 11 12

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