Rainbow-electronics MAX6931 Manual de usuario descargar pdf (Pagina 4)

Typical Operating Characteristics

= 5.0V, V

= 76V, and T

= +25°C, unless otherwise noted.)

MAX6921/MAX6931

20-Output, 76V, Serial-Interfaced

VFD Tube Drivers

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(Typical Operating Circuit, V

= 8V to 76V, V

= 3V to 5.5V, V

= -11V to 0V, V

- V

≤ 76V, T

= T

MIN

to T

MAX

, unless other-

wise noted.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

3V to 4.5V 60 100

Rise and Fall Time DOUT

DOUT

= 10pF

(Note 2)

4.5V to 5.5V 30 80

CLK Clock Period t

200 ns

CLK Pulse-Width High t

90 ns

CLK Pulse-Width Low t

90 ns

CLK Rise to LOAD Rise Hold t

CSH

(Note 2) 100 ns

DIN Setup Time t

5ns

3.0V to 4.5V 20

DIN Hold Time t

4.5V to 5.5V 15

3.0V to 4.5V 25 120 240

DOUT Propagation Delay t

DOUT

= 10pF

4.5V to 5.5V 20 75 150

LOAD Pulse High t

CSW

55 ns

Note 1: All parameters are tested at T

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

Note 2: Guaranteed by design.

Note 3: Delay measured from control edge to when output OUT_ changes by 1V.

TUBE SUPPLY CURRENT (I

)

vs. TEMPERATURE (OUTPUTS LOW)

MAX6921/31 toc01

TEMPERATURE (°C)

SUPPLY CURRENT (mA)

1008040 60020-20

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

-40 120

= 76V

= 40V

= 8V

TUBE SUPPLY CURRENT (I

)

vs. TEMPERATURE (OUTPUTS HIGH)

MAX6921/31 toc02

TEMPERATURE (°C)

SUPPLY CURRENT (mA)

1008040 60020-20

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

-40 120

= 76V

= 40V

= 8V

LOGIC SUPPLY CURRENT (I

)

vs. TEMPERATURE (OUTPUTS LOW)

MAX6921/31 toc03

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

1008040 60020-20

100

150

200

250

300

350

400

-40 120

= 5V, CLK = 5MHz

= 3.3V, CLK = 5MHz

= 5V, CLK = IDLE

= 3.3V, CLK = IDLE

1 2 3 4 5 6 7 8 9 ... 13 14

MAX6921/MAX6931 1
VFD Tube Drivers 1

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Rainbow-electronics MAX6931 Manual de usuario Pagina 4

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