NTE NTE1378 Datasheet

NTE1378

Integrated Circuit

Audio Power Amplifier, 10W

Description:

The NTE1378 is a monolithic integrated circuit in a 5–Lead TO220 type package intended for use as
an audio class AB amplifier. Typically , it provides 12W output power (THD = 10%) at V
This device provides high output current and has very low harmonic and cross–over distortion. Fur­ther, the NTE1378 incorporates a short circuit protection system comprising an arrangement for auto­matically limiting the dissipated power so as to keep the working point of the output transistors within
their safe operating area. A thermal shut–down system is also included.

Absolute Maximum Ratings:

Supply Voltage, V
Input Voltage, V
Differential Input Voltage, V
Output Peak Current (Internally Limited), I
Power Dissipation (T
Operating Junction Temperature Range, T
Storage Temperature Range, T
Thermal Resistance, Junction–to–Case, R
Min. Thermal Shut–Down Junction Temperature (V

S

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I

I

O

= +90°C), P

C

stg

tot

J

thJC

= ±12V, P

S

= 9W, TA = +25°C), T

tot

= ±12V/4Ω.

S

–40° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–40° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

sd

±15V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

V

±12V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+110°C.

S

Electrical Characteristics:

Parameter Symbol Test Conditions Min Typ Max Unit

Supply Voltage V
Quiescent Drain Current I
Input Bias Current I
Input Offset Voltage V
Input Offset Current I
Output Offset Voltage V
Output Power P

(VS = ±12V, TA = +25°C unless otherwise specified)

±6 – ±15 V

d
b

OS

OS

OS

S

VS = ±15V – 40 80 mA
VS = ±15V – 0.2 3.0 µA
VS = ±15V – ±8 – mV
VS = ±15V – ±80 – nA
VS = ±15V – ±10 ±100 mV
THD = 10%, f = 1kHz, RL = 4Ω – 12 – W

O

THD = 10%, f = 1kHz, RL = 8Ω 6 8 – W

Electrical Characteristics (Cont’d): (VS = ±12V, TA = +25°C unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Frequency Response (–3dB) B PO = 8W, RL = 4Ω 10 to 140,000 Hz
Input Sensitivity V

f = 1kHz, PO = 10W, RL = 4Ω – 200 – mV

i

f = 1kHz, PO = 6W, RL = 8Ω – 220 – mV

Voltage Gain G

f = 1kHz, Open Loop – 75 – dB

V

f = 1kHz, Closed Loop 29.5 30.0 30.5 dB

Total Harmonic Distortion THD PO = 0.1 to 8W, RL = 4Ω, f = 1kHz – 0.2 – %

PO = 0.1 to 4W, RL = 8Ω, f = 1kHz – 0.1 1.0 %
Input Noise Voltage e
Input Noise Current I
Input Resistance (Pin1) R
Supply Voltage Rejection SVR RL = 4Ω, Rg = 22kΩ, f
Drain Current I

B = 22Hz to 22kHz, RL = 4Ω – 3 10 µV

N

B = 22Hz to 22kHz, RL = 4Ω – 80 200 pA

N

f = 1kHz 0.5 5.0 – MΩ

I

= 100Hz 40 50 – dB

ripple

PO = 12W, RL = 4Ω – 850 – mA

d

PO = 8W, RL = 8Ω – 500 – mA

Pin Connection Diagram

(Front View)

Non–Inverting Input (+) V

Inverting Input Output

(–) V

S

/Tab

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