Panasonic AN5273 Datasheet

ICs for Audio Common Use

AN5273

4.0 W × 2 (18 V, 8 Ω) Power Amplifier with
Mute Function and Volume Control

■ Overview

The AN5273 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 mute circuit

• Built-in thermal protection circuit

• Built-in over current protection circuit

• 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

1

Mute

HSIP012-P-0000A

Volume

Over

current

thermal

8

NF2

protection

circuit

9

10

GND

12

11

CC

V

NF1

Out1

Ripple

filter

2

3

4

5

6

7

In1

Vol.

N.C.

In2

RF

Out2

1

AN5273 ICs for Audio Common Use

■ Pin Descriptions

Pin No. Description

1 Mute control
2 Ch.1 input
3 Volume control
4N.C.
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
Mute attenuation
Output noise voltage

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

*

1

*

1

*

M
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 −70 −64 dB

Att

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

NO

ICs for Audio Common Use AN5273

■ Application Circuit Example

AN5273

GND 9

1000 µF

18 V

10

V

CC

100 kΩ

Audio

mute

5 V

Mute 1

3.3 µF

In1 2

1 µF

4

100 µF

1000 µF

R

= 8 Ω

L

RF 6

Out2 7

NF2 8

20 kΩ

0.047
µF

20 Ω

1 kΩ

Vol. 3

5 V

N.C.

1 µF

In2 5

10 kΩ

■ Usage Notes

1) Depending on the maximum application output power, external heatsink may be needed.
External heatsink should be fixed to the chassis.

2) Fin of the IC can be connected to GND.

3) Please prevent output to V

4) The temperature protection circuit will operate at T
protection circuit would automatically be deactivated and resume normal operation.

short and output to GND short.

CC

around 150 °C. However, if the temperature decreases, the

j

10 µF

1 kΩ

NF1 11

20 kΩ

0.047

µF

20 Ω

Out1 12

1000 µF10 µF

R

= 8 Ω

L

3