NTE1510
Integrated Circuit
5鈥揝tep LED Driver for Linear Scale
Description:
The NTE1510 is an integrated circuit in an 8鈥揕ead SIP type package designed for use in level meter
applications. This device is capable of driving 5 LEDs to create a bar鈥搕ype 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鈥搗oltage reference power supply is
built鈥搃n, so that the only external components required are LEDs, resistors, and capacitors.
Features:
D
Bar鈥揟ype Display of Input Level using 5 LEDs
D
The Uppermost LED Brightness Varies Linearly With Respect to the Input Level Resulting in a
High鈥揜esolution Display with No Radiation.
D
Built鈥揑n Reference Supply
D
By Changing the External Reference Values, the LED Brightness can be Adjusted
D
Wide Range of Supply Voltages: V
CC
= 4V to 18V
D
High Input Impedance: I
IN
= 100nA Typ
Applications:
D
Signal Meters
D
VU Meters
D
Tuning Meters
D
General Purpose Display Applications
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Input Voltage, V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Output Breakdown Voltage, BV
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Output Current (Per Pin), I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA
Power Dissipation (Note 1), P
dF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550mW
Derate Above 25擄C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5mW/擄C
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +75擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +125擄C
Note 1. With the NTE1510 soldered to a printed circuit board (copper鈥揷lad area 4.5cm x 5.5cm,
thickness 35碌, board thickness 2.0mm).
1
2
