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參數(shù)資料
| 型號： | LM3916 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Dot/Bar Display Driver |
| 中文描述： | 點/酒吧顯示驅(qū)動程序 |
| 文件頁數(shù)： | 3/27頁 |
| 文件大?。?/td> | 509K |
| 代理商： | LM3916 |
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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)
Supply Voltage
1365 mW
25V
Voltage on Output Drivers
Input Signal Overvoltage (Note 4)
Divider Voltage
Reference Load Current
Storage Temperature Range
Lead Temperature
(Soldering, 10 seconds)
25V
±
35V
100 mV to V
+
10 mA
55C to +150C
260C
Electrical Characteristics
(Notes 2, 4)
Parameter
COMPARATORS
Offset Voltage, Buffer and First Comparator
Conditions
(Note 2)
Min
Typ
Max
Units
0V
≤
V
RLO
= V
RHI
≤
12V,
I
LED
= 1 mA
0V
≤
V
= V
RHI
≤
12V,
I
LED
= 1 mA
I
(REF)
= 2 mA, I
LED
= 10 mA
0V
≤
V
IN
≤
(V
+
1.5V)
No Change in Display
3
10
mV
Offset Voltage, Buffer and Any Other Comparator
3
15
mV
Gain (
I
LED
/
V
IN
)
Input Bias Current (at Pin 5)
Input Signal Overvoltage
VOLTAGE DIVIDER
Divider Resistance
Relative Accuracy (Input Change
Between Any Two Threshold Points)
3
8
mA/mV
nA
V
25
100
35
35
Total, Pin 6 to 4
(Note 3)
1 dB
≤
V
IN
≤
3 dB
7 dB
≤
V
IN
≤
1 dB
10 dB
≤
V
IN
≤
7 dB
(Note 3)
V
IN
= 2, 1, 0, 1 dB
V
IN
= 3, 5 dB
V
IN
= 7, 10, 20 dB
8
12
17
k
0.75
1.5
2.5
1.0
2.0
3.0
1.25
2.5
2.5
dB
dB
dB
Absolute Accuracy
0.25
0.5
1
+0.25
+0.5
+1
dB
dB
dB
VOLTAGE REFERENCE
Output Voltage
0.1 mA
≤
I
L(REF)
≤
4 mA,
V
+
= V
LED
3V
≤
V
+
≤
18V
0.1 mA
≤
I
L(REF)
≤
4 mA,
V
+
= V
LED
= 5V
0C
≤
T
A
≤
+70C, I
L(REF)
= 1 mA,
V
+
= V
LED
= 5V
1.2
1.28
1.34
V
Line Regulation
Load Regulation
0.01
0.03
%/V
0.4
2
%
Output Voltage Change with Temperature
1
%
Adjust Pin Current
OUTPUT DRIVERS
LED Current
LED Current Difference (Between Largest and
Smallest LED Currents)
LED Current Regulation
75
120
μA
V
+
= V
LED
= 5V, I
L(REF)
= 1 mA
V
LED
= 5V, I
LED
= 2 mA
V
LED
= 5V, I
LED
= 20 mA
2V
≤
V
LED
≤
17V
I
LED
2 mA
I
LED
= 20 mA
I
LED(ON)
= 20 mA
@
V
LED
= 5V,
I
LED
= 2 mA
I
LED
= 2.0 mA, I
L(REF)
= 0.4 mA
Bar Mode (Note 5)
Dot Mode (Note 5)
7
10
0.12
1.2
13
0.4
3
mA
mA
mA
0.1
1
0.25
3
mA
mA
Dropout Voltage
1.5
V
Saturation Voltage
Output Leakage, Each Collector
Output Leakage
Pins 10–18
Pin 1
0.15
0.1
0.4
100
V
μA
0.1
150
100
450
μA
μA
60
L
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