NTE NTE1515

NTE1514 and NTE1515
Integrated Circuit
5–Step LED Driver for Logarithmic Scale
Features:
D Useful for Both AC and DC Level Meter as VU Meter or Signal Meter
D Wide Supply Voltage Ramge: VCC = 4.4V to 12V
D DC Amplifier Included
Comparator Level: (TA = +25°C, VCC = 6V, Iref = 5mA)
NTE1514
NTE1515
Level
D5
Pin
14
Test Conditions
VR02 = 2.6V to 3V, VR02 = 0V
Min
Typ
Max
Min
Typ
Max
5.5
6.0
6.5
1.6
2.0
2.4
Unit
dB
D4
13
VR02 = 2.6V to 3V, VR02 = 0V
2.5
3.0
3.5
–0.4
0
+0.4
dB
D3
12
VR02 = 2.6V to 3V, VR02 = 0V
–0.5
0
0.5
–3.6
–3.0
–2.4
dB
D2
11
VR02 = 2.6V to 3V, VR02 = 0V
–6.0
–5.0
–4.0
–8.0
–7.0
–6.0
dB
D1
10
VR02 = 2.6V to 3V, VR02 = 0V
–12
–10
–8.0
–17
–15
–13
dB
Note 1. Definition of 0dB:
when voltage of OUT2 is 2.37V (R02 = 3V, R01 = 0V).
when voltage of OUT2 is 1.50V (R02 = 3V, R01 = 0V).
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage (Pin4), VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +14V
Input Voltage (Pin2, Pin3), VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +14V
Current at Pin C (Pin1), IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1mA to 2mA
Output Voltage,
Pin16 (Note 2), VOUT(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +12V
Pin15, VOUT(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +12V
Pin10 to Pin14, VOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to 14V
Reference Current (Pin6), Iref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 10mA
Allowable Power Dissipation (TA = +55°C, Total), Pdmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10° to +60°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C
Note 2. When OUT1 is off and OUT2 is connected to GND (Pin8) through 12kΩ.
Note 3. Notice inhibit to supply any voltage to input and output pin larger than VCC+0.3V (Especially
beware of power switch on). Pin D1 to D5 should be connected to VCC at no use of LED’s.
Allowable Operating Condition: (TA = +25°C unless otherwise specified)
Supply Voltage (Pin4), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4 to 12V
Reference Current (Pin6), Iref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 to 9.0mA
Load Resistance (Pin15, inserted between OUT2 and GND), RL2 . . . . . . . . . . . . . . . . . . . 15 to 20kΩ
Electrical Characteristics: (TA = +25°C, VCC = 4.4V to 12V, Iref = 5mA unless otherwise specified)
Parameter
Symbol
Pin
Input Bias Current
(Amp Section)
IIN+(A)
2
IIN–(A)
Min
Typ
Max
Unit
VCC = 12V, VIN+ = 10V, VIN– = 0V
–2
–
0
µA
3
VCC = 12V, VIN+ = 0V, VIN– = 10V
–2
–
0
µA
IIN+(C)
5, 7
VCC = 12V, VIN+ = 10V, VIN– = 0V,
VR01 = 0V, VR02 = 0V
–10
–
0
µA
IIN–(C)
15
VCC = 12V, VIN+ = 0V, VIN– = 10V,
VR01 = VR02 = Vref, VOUT2 = 0V
–10
–
0
µA
Reference Voltage
Vref
6
Iref = 2.5mA to 9.0mA
2.6
–
3.0
V
Amp Offset Voltage
(Amp Section)
Voffset
15
Amp Gain 20dB
–500
–
+500
mV
Output Flow–in Current
IOL(1)
16
OUT1: VOUT1 = 0.5V, VIN+ = 0V,
VIN– = 4V
0.2
–
–
mA
Output Flow–out Current
IOH(1)
16
OUT1: VOUT1 = 3.7V, VIN+ = 4V,
VIN– = 0V
–
–
–20
µA
IOH(2)
15
OUT2: VCC = 4.4V, VOUT2 = 0V
–
–
–3.1
mA
IOH(2)
15
OUT2: VCC = 12V, VOUT2 = 0V
–
–
–7.0
mA
10 to 14 D1 to D5: VCC = 4.4V, VD1 to VD5 = 2.3V,
VIN– = 0V, VIN+ = 3V, VR02 = 3V
3.0
–
7.5
mA
D1 to D5: VCC = 12V, VD1 to VD5 = 9.7V,
VIN– = 0V, VIN+ = 9V, VR02 = 9V
3.0
–
7.5
mA
–
–
50
µA
VCC = 12V, VIN+ = 0V, VIN– = 10V
–
8
15
mA
Open Looped
30
–
–
dB
Input Bias Current
(Comparator Section)
Output Flow–in Current
IOL(D)
Output Leak Current
IOH(D)
Current Dissipation
ICC
Amp Gain
VG
10 to 14 D1 to D5: VCC = 12V, VIN+ = 0V,
VIN– = 9V, VR02 = 9V
VU Level Meter
+3dB
0dB –10dB
Input Level
Test Conditions
4
Pin Connection Diagram
Capacitor
1
16 Output (1)
Input (–)
2
15 Output (2)
Input (+)
3
14 LED5
VCC
4
13 LED4
RO2‘
5
12 LED3
Vref 6
11 LED2
RO1
7
10 LED1
GND
8
9
N.C.
16
9
.260 (6.6) Max
1
8
.300 (7.62)
.785 (19.9) Max
.200 (5.08)
Max
.245
(6.22)
Min
.100 (2.54)
.700 (17.7)