Document
NTE1115 & NTE1115A Integrated Circuit Audio Power Amplifier, 7W
Description: The NTE1115 and NTE1115A are monolithic integrated circuits designed for use as low frequency class B amplifiers. These devices provide 7W power output at 16V/4Ω, 6W at 14.4V/4Ω, 2.5W at 9V/Ω, 1W at 6V/4Ω and works with a wide range of supply voltages (4V to 20V); and gives high output current (up to 2.5A), high efficiency (75% at 6W output), very low harmonic and cross–over distortion. In addition, thermal protection is provided. Absolute Maximum Ratings: Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V Output Peak Current (Non–Repetitive), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5A Output Current (Repetitive), IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A Power Dissipation, Ptot TA = +70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W Ttab = +100°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5W Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C Thermal Resistance, Junction–to–Tab, RthJ–TAB NTE1115 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10°C/W NTE1115A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12°C/W Thermal Resistance, Junction–to–Ambient, RthJA NTE1115 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80°C/W NTE1115A (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W Note 1. Obtained with tabs soldered to printed circuit with minimized copper area. Elecrtrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter Supply Voltage (Pin1) Quiescent Output Voltage (Pin12) Quiescent Drain Current Bias Current (Pin8) Symbol VS VO Id Ib VS = 14.4V Test Conditions Min 4 6.4 – – Typ – 7.2 12 0.4 Max Unit 20 8.0 20 – V V mA µA
Elecrtrical Characteristics (Cont’d): (TA = +25°C unless otherwise specified)
Parameter Power Output Symbol PO Test Conditions THD = 10%, RL = 4Ω, f = 1kHz VS = 16V VS = 14.4V VS = 9V VS = 6V Input Voltage Input Sensitivity Vi(rms) Vi Ri B VS = 14.4V, RL = 4Ω C3 = 820pF C3 = 1500pF Total Harmonic Distortion Voltage Gain (Open Loop) Voltage Gain (Closed Loop) Input Noise Voltage Input Noise Current Efficiency Supply Voltage Rejection THD GV GV eN iN h SVR VS = 14.4V, Rg = 0, B (–3dB) = 20Hz to 20kHz VS = 14.4V, B (–3dB) = 20Hz to 20kHz PO = 5W, VS = 14.4V, RL = 4Ω, f = 1kHz VS = 14.4V, RL = 4Ω, fripple = 100Hz Pin Connection Diagram PO = 50mW to 3W, VS = 14.4V, RL = 4Ω, f = 1kHz VS = 14.4V, RL = 4Ω, f = 1kHz PO = 6W, VS = 14.4V, RL = 4Ω, f = 1kHz Rf = 56Ω Rf = 22Ω Min – 5.5 – – – – – – Typ 7.0 6.0 2.5 1.0 – 80 35 5 Max Unit – – – – 22 – – – W W W W mW mV mV MΩ Hz Hz % dB dB µV nA % dB
Input Resistance (Pin8) Frequency Response (–3dB)
40 to 20,000 40 to 10,000 – – 34 – – – – 0.3 80 37 2 0.1 70 38 – – 40 – – – –
VCC 1 N.C. 2 N.C. 3 Tab
12 Output 11 N.C. 10 GND Tab
Bootstrap 4 Compensation 5 Feedback 6
9 Substrate GND 8 Input 7 Ripple Rejection
NTE1115
.250 (6.35)
.142 (3.6) Dia 12
7
1.004 (25.5) Max .650 (16.5)
1
6
.770 (19.5) Max
.265 (6.7)
.060 (4.0) .100 (2.54) .700 (17.78)
NTE1115 Alt.
.250 (6.35)
.142 (3.6) Dia 12 7 1.004 (25.5) Max .650 (16.5) 1 6
.770 (19.5) Max
.265 (6.7)
.060 (4.0) .100 (2.54) .700 (17.78)
NTE1115A
.247 (6.27)
12
7
.677 (17.2)
1
6
.770 (19.5) Max
.260 (6.6)
.233 (5.9) Max
.100 (2.54) .700 (17.78)
.099 (2.5) Min
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