Panasonic AN5272 Datasheet

ICs for Audio Common Use

AN5272

4.0 W × 2 (18 V, 8 Ω) Power Amplifier with
Variable Audio Output and Volume Control

■ Overview

The AN5272 is a monolithic integrated circuit designed
for 4.0 W (18 V, 8 Ω) output audio power amplifier. It is
a dual channel SEPP IC suitable for stereo operation in
TV application.

■ Features

• Built-in DC volume control

• Built-in thermal protection circuit

• Built-in over current protection circuit

• 2 Variable Audio Output (VAO)

• V

operating range : 12.2 V to 27.5 V

CC

Unit : mm

7.7±0.3

φ3.6

(10.0)(10.0)

20.0±0.3

28.0±0.3

29.75±0.30

R1.8

0.6

(12.5)

1.2±0.1

19.1±0.3

21.9±0.3

(1.2)

121

(1.27) (1.3)

(1.27)

+0.15

–0.05

0.6

2.54

+0.10

–0.05

0.25

29.6±0.3

1.45±0.151.80±0.15

3.5±0.3

■ Applications

• TV

■ Block Diagram

HSIP012-P-0000A

Volume

Over

current

thermal

8

NF2

protection

circuit

9

10

GND

12

11

CC

V

NF1

Out1

Ripple

filter

1

2

3

4

5

6

7

In1

VAO1

Vol.

VAO2

In2

RF

Out2

1

AN5272 ICs for Audio Common Use

■ Pin Descriptions

Pin No. Description

1 Variable audio output 1
2 Ch.1 input
3 Volume control
4 Variable audio output 2
5 Ch.2 input
6 Ripple filter

■ Absolute Maximum Ratings

Parameter Symbol Rating Unit

Supply voltage V
Supply current I

2

Power dissipation
Operating ambient temperature
Storage temperature

Note) *1:Ta = 25 °C except power dissipation, operating ambient temperature and storage temperature.

*2: Power dissipation of the package at Ta = 75 °C.

*

1

*

1

*

CC

CC

P

D

T

opr

T

stg

Pin No. Description

7 Ch.2 output
8 Negative feedback ch.2
9 GND

10 V

CC

11 Negative feedback ch.1
12 Ch.1 output

30 V

3.5 A

37.5 W

−25 to +75 °C

−55 to +150 °C

■ Recommended Operating Range

Parameter Symbol Range Unit

Supply voltage V

CC

12.2 to 27.5 V

■ Electrical Characteristics at VCC = 18 V, f = 1 kHz, RL = 8 Ω, Ta = 25 °C

Parameter Symbol Conditions Min Typ Max Unit

Quiescent current I
Voltage gain G

1

Total harmonic distortion

1

Output power

*

*

THD VIN = 90 mV 0.3 1.0 %

Channel balance CB VIN = 90 mV −10 1dB

1

Max. volume attenuation

*

VAO voltage gain G

1

Output noise voltage

Note) *1: With a filter band from 20 Hz to 20 kHz used.

*

V

2

No input signal 17 25 33 mA

CQ

VIN = 90 mV 28 30 32 dB

V

P

THD = 10 % 3.6 4.1 W

O

Att VIN = 90 mV −70 −64 dB

VIN = 90 mV 10 12 14 dB

VAO

Rg = 10 kΩ, Din-Audio Filter 0.6 1.0 mV[rms]

NO