NTE1502 NTE, NTE1502 Datasheet
NTE1502
Manufacturer Part Number
NTE1502
Description
Integrated Circuit 5-Step LED Driver Circuit for Linear Response
Manufacturer
NTE
Datasheet
1.NTE1502.pdf
(2 pages)
Description:
The NTE1502 is an integrated circuit in a 9–Lead SIP type package designed for driving 5–LED bar
graphs or dot displays so that the LEDs may light linearly for input signal. Brightness of the LEDs can
be controlled by using the output current adjustment pin provided.
Features:
D 5–LED Bar Graph or Dot Display Drive
D Linear Response with Respect to Input
D Brightness Externally Adjustable
D High Output Current, Suitable for Green LED Drive
D Lamp ON/OFF Hysteresis, No Flickering by Noise
Absolute Maximum Ratings: (T
Supply Voltage, V
Circuit Voltage, V
Load Current Set Input Voltage, V
Output Voltage (Note 1), V
Supply Current (Note 1), I
Load Current Set Input Current (Note 2), I
Output Current (Note 1), I
Power Dissipation (T
Operating Ambient Temperature Range, T
Storage Temperatuere Range, T
Note 1. Output Pin1, Pin2, Pin3, Pin4, and Pin6.
Note 2. I
Electrical Characteristics: (T
Input Voltage (LED ON)
LED 2
LED 3
LED 4
LED 5
LED 1
Parameter
7
which can be set I
8–5
CC
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
= +75 C ), P
O
CC
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbol
V
V
V
V
V
5–Step LED Driver Circuit
A
= 20mA is assumed to be the absolute rated value.
I(ON)1
I(ON)2
I(ON)3
I(ON)4
I(ON)5
stg
= +25 C, V
A
7–5
for Linear Response
D
= +25 C unless otherwise specified)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Integrated Circuit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
opr
NTE1502
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
= 16V unless otherwise specified)
Test Conditions
1.63
2.20
2.80
3.38
3.92
Min
1.83
2.43
3.03
3.64
4.14
Typ
–55 to +150 C
–0.5V to +18V
–0.5V to +16V
–0.5V to +16V
–20 to +75 C
Max
2.00
2.64
3.27
3.88
4.37
550mW
18mA
20mA
Unit
+16V
5mA
V
V
V
V
V
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NTE1502 Summary of contents
Page 1
... Description: The NTE1502 is an integrated circuit in a 9–Lead SIP type package designed for driving 5–LED bar graphs or dot displays so that the LEDs may light linearly for input signal. Brightness of the LEDs can be controlled by using the output current adjustment pin provided. Features: D 5– ...
Page 2
Electrical Characteristics (Cont’d): (T Parameter Load Current Pin6 Pin1 to Pin4 Pin1 to Pin4, Pin6 Input Current Supply Current Output Pin Leakage Current Symbol Test Conditions 1.2V 4.25mA ...