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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 = +25C, VCC = 6V, Iref = 5mA)
NTE1514 Level D5 D4 D3 D2 D1 Pin 14 13 12 11 10 Test Conditions VR02 = 2.6V to 3V, VR02 = 0V VR02 = 2.6V to 3V, VR02 = 0V VR02 = 2.6V to 3V, VR02 = 0V VR02 = 2.6V to 3V, VR02 = 0V VR02 = 2.6V to 3V, VR02 = 0V Min 5.5 2.5 -0.5 -6.0 -12 Typ 6.0 3.0 0 -5.0 -10 Max 6.5 3.5 0.5 -4.0 -8.0 Min 1.6 -0.4 -3.6 -8.0 -17 NTE1515 Typ 2.0 0 -3.0 -7.0 -15 Max 2.4 +0.4 -2.4 -6.0 -13 Unit dB dB dB dB 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 = +25C 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 = +55C, Total), Pdmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10 to +60C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +125C Note 2. When OUT1 is off and OUT2 is connected to GND (Pin8) through 12k. 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 = +25C 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 20k Electrical Characteristics: (TA = +25C, VCC = 4.4V to 12V, Iref = 5mA unless otherwise specified)
Parameter Input Bias Current (Amp Section) Input Bias Current (Comparator Section) Symbol IIN+(A) IIN-(A) IIN+(C) IIN-(C) Reference Voltage Amp Offset Voltage (Amp Section) Output Flow-in Current Output Flow-out Current Vref Voffset IOL(1) IOH(1) IOH(2) IOH(2) Output Flow-in Current IOL(D) Pin 2 3 5, 7 15 6 15 16 16 15 15 Test Conditions VCC = 12V, VIN+ = 10V, VIN- = 0V VCC = 12V, VIN+ = 0V, VIN- = 10V VCC = 12V, VIN+ = 10V, VIN- = 0V, VR01 = 0V, VR02 = 0V VCC = 12V, VIN+ = 0V, VIN- = 10V, VR01 = VR02 = Vref, VOUT2 = 0V Iref = 2.5mA to 9.0mA Amp Gain 20dB OUT1: VOUT1 = 0.5V, VIN+ = 0V, VIN- = 4V OUT1: VOUT1 = 3.7V, VIN+ = 4V, VIN- = 0V OUT2: VCC = 4.4V, VOUT2 = 0V OUT2: VCC = 12V, VOUT2 = 0V Min -2 -2 -10 -10 2.6 -500 0.2 - - - 3.0 3.0 - - 30 Typ - - - - - - - - - - - - - 8 - Max 0 0 0 0 3.0 +500 - -20 -3.1 -7.0 7.5 7.5 50 15 - Unit A A A A V mV mA A mA mA mA mA A mA dB
10 to 14 D1 to D5: VCC = 4.4V, VD1 to VD5 = 2.3V, VIN- = 0V, VIN+ = 3V, VR02 = 3V D1 to D5: VCC = 12V, VD1 to VD5 = 9.7V, VIN- = 0V, VIN+ = 9V, VR02 = 9V
Output Leak Current Current Dissipation Amp Gain
IOH(D) ICC VG
10 to 14 D1 to D5: VCC = 12V, VIN+ = 0V, VIN- = 9V, VR02 = 9V 4 VCC = 12V, VIN+ = 0V, VIN- = 10V Open Looped
VU Level Meter +3dB 0dB -10dB
Pin Connection Diagram Capacitor Input (-) Input (+) VCC RO2 ` 1 2 3 4 5 16 Output (1) 15 Output (2) 14 LED5 13 LED4 12 LED3 11 LED2 10 LED1 9 N.C.
Vref 6 RO1 GND Input Level 7 8
16
9
.260 (6.6) Max
1
8
.785 (19.9) Max
.300 (7.62)
.200 (5.08) Max .245 (6.22) Min
.100 (2.54) .700 (17.7)

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