
NTE1510
Integrated Circuit
5–Step LED Driver for Linear Scale
Description:
The NTE1510 is an integrated circuit in an 8–Lead SIP type package designed for use in level meter
applications. This device is capable of driving 5 LEDs to create a bar–type display. In accordance
with the input level, the uppermost LED brightness varies to form a linear indicator, making the
NTE1510 ideal for use in signal meters and VU meters. A low–voltage reference power supply is
built–in, so that the only external components required are LEDs, resistors, and capacitors.
Features:
Bar–Type Display of Input Level using 5 LEDs
The Uppermost LED Brightness Varies Linearly With Respect to the Input Level Resulting in a
High–Resolution Display with No Radiation.
Built–In Reference Supply
By Changing the External Reference Values, the LED Brightness can be Adjusted
Wide Range of Supply Voltages: V
CC
= 4V to 18V
High Input Impedance: I
IN
= 100nA Typ
Applications:
Signal Meters
VU Meters
Tuning Meters
General Purpose Display Applications
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Breakdown Voltage, BV
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Current (Per Pin), I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (Note 1), P
dF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above 25
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note 1. With the NTE1510 soldered to a printed circuit board (copper–clad area 4.5cm x 5.5cm,
thickness 35
μ
, board thickness 2.0mm).
18V
6V
18V
15mA
550mW
5.5mW/
°
C
–20
°
to +75
°
C
–40
°
to +125
°
C