NTE1513 Datasheet, PDF (1/3 Pages) NTE Electronics – Integrated Circuit 9-Step LED Driver Circuit for Logarithmic Scale

NTE1513
Integrated Circuit
9–Step LED Driver Circuit for Logarithmic Scale
Functions:
D Indication Way: Indicates input level in a series bar by 9 red or green LED’s
D Input Amp:
DC amp installed the aim of which can be varied by a peripheral resistor.
D Comparator Level: Designed with 3dB rate;
–18dB, –15dB, –12dB, –9dB, –6dB, –3dB, 0dB, +3dB, +6dB
D Supply Voltage: Wide recommended supply voltage: 5.5 to 16V At V_ref2: 7 to 16V
D Reference Voltage: V_ref (5V) pin can prepare another voltage regulator with added transistor
Applications:
D For AC Level Meter as VU Meter
D For DC Level Metetr as Signal Meter
Comparator Level: (T_A =+ 25°C, V_CC = 12V, V_refl = 3V)
Comparator Level
Pin
Min
Typ
Max
Unit
D1
7
0.11
0.18 (Note 1)
0.25
V
D2
8
0.20
0.27 (Note 1)
0.34
V
D3
9
0.30
0.38 (Note 1)
0.46
V
D4
10
0.45
0.53 (Note 1)
0.61
V
D5
11
0.66
0.75
0.84
V
D6
12
0.97
1.06
1.15
V
D7
13
1.40
1.50
1.60
V
D8
14
2.02
2.12
2.22
V
D9
15
2.90
3.00
3.10
V
Note 1. No
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Maximum Supply Voltage (Pin1), V_CCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +18V
Input Voltage (Pin3, Pin4), V_IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to V_CC
D1 to D9 Output Voltage (D1 to D9: Off), V_{OUT D} . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +18V
D1 to D9 Output Current (Pin7 to Pin15, D1 to D9: On), I_{OL D} . . . . . . . . . . . . . . . . . . . . . . . . . +30mA
Reference Voltage Flow–Out Current,
Pin2, I_ref1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –1mA to 0mA
Pin16, I_ref2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –6mA to 0mA
V_OUT Supply Voltage (Pin5), V_OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +6.0V
Allowable Power Dissipation (T_A = +55°C), P_dmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10° to +60°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C