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PDF NTE1503 Data sheet ( Hoja de datos )
| Número de pieza | NTE1503 | |
| Descripción | Integrated Circuit 5-Step LED Driver Circuit for Logarithmic Response | |
| Fabricantes | NTE | |
| Logotipo |  |
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NTE1503
Integrated Circuit
5–Step LED Driver Circuit
for Logarithmic Response
Description:
The NTE1503 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 logarithmically (dB) 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 Logarithmic 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: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to +18V
Circuit Voltage, V8–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to +16V
Load Current Set Input Voltage, V7–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +16V
Output Voltage (Note 1), VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5V to +16V
Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18mA
Load Current Set Input Current, I7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.25mA
Output Current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550mW
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperatuere Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Note 1. Output Pin1, Pin2, Pin3, Pin4, and Pin6.
Electrical Characteristics: (TA = +25°C, VCC = 16V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Input Voltage (LED ON)
LED 1
VI(ON)1
– – 1.12 V
LED 2
VI(ON)2
– – 1.86 V
LED 3
LED 4
LED 5
VI(ON)3
VI(ON)4
VI(ON)5
– – 3.10 V
– – 5.18 V
– – 8.66 V
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet NTE1503.PDF ] | |
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