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NTE1511 Datasheet, PDF (1/3 Pages) NTE Electronics – Integrated Circuit 5-Step LED Driver for Linear Scale | |||
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NTE1511
Integrated Circuit
5âStep LED Driver for Linear Scale
Description:
The NTE1511 is an integrated circuit in an 14âLead DIP type package designed for use in level meter
applications. This device is capable of driving 5 LEDs to create a barâtype display. In accordance
with the input level, the uppermost LED brightness varies to form a linear indicator, making the
NTE1511 ideal for use in signal meters and VU meters. A lowâvoltage reference power supply is
builtâin, so that the only external components required are LEDs, resistors, and capacitors.
Features:
D Wide Supply Voltage Range: +5V to +16V
D Reference Voltage: Vref = 2.8V ±0.2V
D LED Output Voltage: Constant Voltage
D LED Current: Constant Current by Means of an External Resistor
D Allowable Power Dissipation: Pdmax = 1.15W @ TA = +25°C
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage (Pin8), VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â0.3V to +18V
Input Voltage (Pin1, Pin2, Pin3), VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â0.3V to VCC
Output Voltage (Pin14), VOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â0.3V to +8.0V
Output Voltage (Pin9 to Pin13, VOUT(D) ⤠VCC at output (D1 to D5) OFF), VOUT(D) . . â0.3V to +10V
Reference FlowâOut Current (Pin5), Iref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â1.0mA to 0mA
Allowable Power Dissipation, Pdmax
Without Heatsink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3W
With 50 x 50 x 1mm3 Al plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.15W
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â10° to +60°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â40° to +125°C
Note 1. A voltage of VCC+0.3V or more must not be applied to the input and output pins.
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Parameter
Symbol Pin #
Test Conditions
Min Typ Max Unit
Supply Voltage
Input Voltage
Output Pin Load Resistance
VCC
8
5 â 16 V
VIN1+, 2 2, 3
â0.3 â VCC V
RLOUT 14 Between OUT (Pin14) and GND (Pin7) 15 â 20 kâ¦
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