MM5451 datasheet(2/8 Pages) NSC

2 / 8 page

Absolute Maximum Ratings

If MilitaryAerospace specified devices are required

please contact the National Semiconductor Sales

OfficeDistributors for availability and specifications

Voltage at Any Pin

VSS b 03V to VSS a 12V

Operating Temperature

b25 Cto a85 C

Storage Temperature

b65 Cto a150 C

Junction Temperature

a150 C

Lead Temperature (Soldering 10 sec)

300 C

Power Dissipation at a25 C

Molded DIP Package Board Mount

25W

Molded DIP Package Socket Mount

23W

Molded DIP Package board mount

iJA e 49 CW

Derate 204 mW C above 25 C

Molded DIP Package socket mount

iJA e 54 CW

Derate 185 mW C above 25 C

Electrical Characteristics TAwithinoperatingrange VDD e 475Vto110V VSS e 0Vunlessotherwisespecified

Parameter

Conditions

Min

Typ

Max

Units

Power Supply

475

Power Supply Current

Excluding Output Loads

Input Voltages

Logical ‘‘0’’ Level (VL)

g10

mA Input Bias

b03

Logical ‘‘1’’ Level (VH)

475V s VDD

s 525V

VDD

l 525V

VDD b 2V

VDD

Brightness Input (Note 2)

075

Output Sink Current

Segment OFF

VOUT e 30V

Segment ON

VOUT e 1V (Note 3)

Brightness Input e 0

mA0

Brightness Input e 100

Brightness Input e 750

mA15

Brightness Input Voltage (Pin 19)

Input Current 750

Output Matching (Note 1)

g20

Clock Input

(Notes 5 and 6)

Frequency fC

500

kHz

High Time th

950

Low Time tl

950

Data Input

Set-Up Time tDS

300

Hold Time tDH

300

Data Enable Input

Set-Up Time tDES

100

Note 1

Output matching is calculated as the percent variation (IMAX a IMIN)2

Note 2

With a fixed resistor on the brightness input pin some variation in brightness will occur from one device to another Maximum brightness input current can

be 2 mA as long as Note 3 and junction temperature equation are complied with

Note 3

See

Figures 5 6

and

7 for Recommended Operating Conditions and limits Absolute maximum for each output should be limited to 40 mA

Note 4

The VOUT voltage should be regulated by the user See Figures 6 and 7 for allowable VOUT vs IOUT operation

Note 5

AC input waveform specification for test purpose tr

s 20 ns tf s 20 ns f e 500 kHz 50% g10% duty cycle

Note 6

Clock input rise and fall times must not exceed 300 ns

Connection Diagrams

Dual-In-Line Package

TLF6136 – 2

Top View

FIGURE 2a

Dual-In-Line Package

TLF6136 – 3

Top View

FIGURE 2b

Order Number MM5450N MM5451N MM5450V or MM5451V

See NS Package Number N40A or V44A

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