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)