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 Vref2: 7 to 16V D Reference Voltage: Vref (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: (TA =+ 25°C, VCC = 12V, Vrefl = 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: (TA = +25°C unless otherwise specified) Maximum Supply Voltage (Pin1), VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +18V Input Voltage (Pin3, Pin4), VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to VCC D1 to D9 Output Voltage (D1 to D9: Off), VOUT D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +18V D1 to D9 Output Current (Pin7 to Pin15, D1 to D9: On), IOL D . . . . . . . . . . . . . . . . . . . . . . . . . +30mA Reference Voltage Flow–Out Current, Pin2, Iref1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –1mA to 0mA Pin16, Iref2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –6mA to 0mA VOUT Supply Voltage (Pin5), VOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to +6.0V Allowable Power Dissipation (TA = +55°C), Pdmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10° to +60°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C Allowable Operation Condition: (TA = +25°C unless otherwise specified) Recommended Supply Voltage (Pin1), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +55V to +16V Using Vref2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7V to +16V Input Voltage (Pin3, Pin4), VIN+, VIN– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to VCC Load Resistance (Pin5 to Pin6), RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15kΩ to 20kΩ Electrical Characteristics: (TA = +25°C, VCC = 12V unless otherwise specified) Parameter Symbol Pin Input Bias Current (Amp Section) IIN+(A) 3 IIN–(A) Input Bias Current (Comparator Section) + Output Leakage Current Offset Voltage Min Typ Max Unit VIN+ = 0V, VIN– = 3V, GND = 0V –2 – 0 µA 4 VIN+ = 3V, VIN– = 0V, GND = 0V –2 – 0 µA IIN+(C) + IOL(A) 5 VIN+ = 0V, VIN– = 3V, OUT = 0V, GND = 0V –10 – 0 µA Voffset1 5 VCC = 6V, VIN+ = VIN– = 0V, GND = –6V, Gain 20dB –180 – +180 mV Voffset2 5 VIN+ = VIN– = 0V, GND = 0V, Gain 20dB 0 – +180 mV Vref1 2 Iref = 0 to 1mA 2.6 – 3.0 V Vref2 16 Iref = 0 to 6mA 4.2 4.7 5.2 V Current Dissipation ICC 1 VIN+ = 3V, VIN– = 0V – 10 20 mA Amp Gain VG Open Looped 30 – – dB Output Flow–out Current IOH 5 VOUT = 0V, VIN+ = 3V, VIN– = 0V – – –10 µA Pin D Output On Voltage VOL D 7 to 15 D1 to D9: IOL = 20mA, VIN+ = 3V, VIN– = 0V – – 1.2 V Pin D Output Leakage Current IOH D 7 to 15 D1 to D9: VIN+ = 0V, VIN– = 3V, VD1 to D9 = 12V – – 10 µA Output Voltage (Amp Section) VOH 5 VCC = 5.5V, VIN+ = 3V, VIN– = 0V, RL = 15kΩ 4 – – V VIN+ = 3V, VIN– = 0V, RL = 15kΩ 9.5 – – V Reference Voltage Test Conditions Pin Connection Diagram VCC 1 16 Vref (2) Vref (1) 2 15 LED9 Input (+) 3 14 LED8 Input (–) 4 13 LED7 Output 5 12 LED6 GND 6 11 LED1 7 10 LED4 LED2 8 9 LED5 LED3 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)