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参数资料
| 型号： | NTE1509 |
| 厂商： | NTE Electronics, Inc. |
| 英文描述： | Integrated Circuit 10-Step Dot/Bar Display Driver for Logarithmic Scale |
| 中文描述： | 集成电路10步点/大对数表显示驱动 |
| 文件页数： | 3/4页 |
| 文件大小： | 30K |
| 代理商： | NTE1509 |
Electrical Characteristics (Cont
’
d):
(Note 2, unless otherwise specified, all specifications apply
with the following conditions:
3V
DC
≤
V+
≤
20V
DC
3V
DC
≤
V
LED
≤
V+
–
0.015V
≤
V
RLO
≤
12V
DC
–
0.015V
≤
V
RHI
≤
12V
DC
V
REF
, V
RHI
, V
RLO
≤
(V+
–
1.5V)
0V
≤
V
IN
≤
V+
–
1.5V
T
A
+25
°
C, I
L(REF)
= 0.2mA,
V
LED
= 3V, Pin9 connected to Pin3
(Bar Mode)
Parameter
Test Conditions
Min
Typ
Max
Unit
Output Drivers
LED Current
V+ = V
LED
= 5V, I
L(REF)
= 1mA
V
LED
= 5V
7
10
13
mA
LED Current Difference (Between Largest
and Smallest LED Currents)
I
LED
= 2mA
I
LED
= 20mA
I
LED
= 2mA
I
LED
= 20mA
–
0.12
0.4
mA
–
1.2
3.0
mA
LED Current Regulation
2V
≤
V
LED
≤
17V
–
0.1
0.25
mA
–
1
3
mA
Dropout Voltage
I
LED(ON)
= 20mA, V
LED
= 5V,
I
LED
= 2mA
I
LED
= 2mA, I
L(REF)
= 0.4mA
Bar Mode, Note 4
–
–
1.5
V
Saturation Voltage
–
0.15
0.4
V
μ
A
μ
A
μ
A
Output Leakage, Each Collector
–
0.1
10
Output Leakage
Dot Mode, Note 4
Pin10 to Pin18
–
0.1
10
Pin1
60
150
450
Supply Current
Standby Supply Current (All Outputs OFF)
V+ = 5V, I
L(REF)
= 0.2mA
V+ = 20V, I
L(REF)
= 1mA
–
2.4
4.2
μ
A
μ
A
–
6.1
9.2
Note 2. Pin5 input current must be limited to
±
3mA. The addition of a 39k
resistor in series with
Pin5 allows
±
100V signals without damage.
Note 4. Bar mode results when Pin9 is within 20mV of V+. Dot mode results when Pin9 is pulled at
least 200mV below V+ or left open circuit. LED No. 10 (Pin10 output current) is disabled if
Pin9 is pulled 0.9V or more below V
LED
.
Threshold Voltage:
(Note 3)
Output
dB
1
–
27
1
–
24
3
–
21
4
–
18
5
–
15
Min
0.422
0.596
0.841
1.189
1.679
Typ
0.447
0.631
0.891
1.259
1.778
Max
0.531
0.750
1.059
1.413
1.995
Output
dB
–
12
–
9
–
6
–
3
0
Min
2.372
3.350
4.732
6.683
9.985
Typ
2.512
3.548
5.012
7.079
10.000
Max
2.819
3.825
5.309
7.498
10.015
6
7
8
9
10
Note 3. Accuracy is measured referred to +10.000V
DC
at Pin5, with + 10.000V
DC
at Pin6, and
0.000V
DC
at Pin4. At lower full
–
scale voltages, buffer and comparator offset voltage may
add significant error. See table for threshold voltages.
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