LM3916 datasheet(3/27 Pages) NSC

3 / 27 page

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Power Dissipation (Note 6)

Molded DIP (N)

1365 mW

Supply Voltage

25V

Voltage on Output Drivers

25V

Input Signal Overvoltage (Note 4)

±35V

Divider Voltage

−100 mV to V

Reference Load Current

10 mA

Storage Temperature Range

−55˚C to +150˚C

Lead Temperature

(Soldering, 10 seconds)

260˚C

Electrical Characteristics (Notes 2, 4)

Parameter

Conditions (Note 2)

Min

Typ

Max

Units

COMPARATORS

Offset Voltage, Buffer and First Comparator

≤ V

RLO = VRHI ≤ 12V,

LED = 1mA

310

Offset Voltage, Buffer and Any Other Comparator

≤ V

RLO = VRHI ≤ 12V,

LED = 1mA

315

Gain (

∆I

LED/ ∆VIN)I(REF) = 2 mA, ILED = 10 mA

mA/mV

Input Bias Current (at Pin 5)

≤ V

IN ≤ (V

+ −1.5V)

100

Input Signal Overvoltage

No Change in Display

−35

VOLTAGE DIVIDER

Divider Resistance

Total, Pin 6 to 4

Ω

Relative Accuracy (Input Change

Between Any Two Threshold Points)

(Note 3)

−1 dB

≤ V

IN ≤ 3dB

−7 dB

≤ V

IN ≤ −1 dB

−10 dB

≤ V

IN ≤ −7 dB

0.75

1.5

2.5

1.0

2.0

3.0

1.25

2.5

Absolute Accuracy

(Note 3)

IN = 2, 1, 0, −1 dB

IN = −3, −5 dB

IN = −7, −10, −20 dB

−0.25

−0.5

−1

+0.25

+0.5

VOLTAGE REFERENCE

Output Voltage

0.1 mA

≤ I

L(REF) ≤ 4 mA,

+ = V

LED = 5Vg

1.2

1.28

1.34

Line Regulation

≤ V+ ≤ 18V

0.01

0.03

%/V

Load Regulation

0.1 mA

≤ I

L(REF) ≤ 4 mA,

+ = V

LED = 5V

0.4

Output Voltage Change with Temperature

0˚C

≤ T

A ≤ +70˚C, IL(REF) = 1 mA,

+ = V

LED = 5V

Adjust Pin Current

120

µA

OUTPUT DRIVERS

LED Current

+ = V

LED = 5V, IL(REF) = 1 mA

LED Current Difference (Between Largest and

Smallest LED Currents)

LED = 5V, ILED = 2mA

LED = 5V, ILED = 20 mA

0.12

1.2

0.4

LED Current Regulation

≤ V

LED ≤ 17V

LED 2mA

LED = 20 mA

0.1

0.25

Dropout Voltage

LED(ON) = 20 mA @ VLED = 5V,

∆I

LED = 2mA

1.5

Saturation Voltage

LED = 2.0 mA, IL(REF) = 0.4 mA

0.15

0.4

Output Leakage, Each Collector

Bar Mode (Note 5)

0.1

100

µA

Output Leakage

Dot Mode (Note 5)

Pins 10–18

0.1

100

µA

Pin 1

150

450

µA

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