Datasheet AN7164 Datasheet (Panasonic)

ICs for Audio Common Use

AN7164

30 W BTL audio power amplifier

■ Overview

The AN7164 is an integrated circuit designed for 30

W (V

= 21 V, 8 Ω) output power amplifier. High power

CC

output (BTL 30 W), low distortion and low noise are re­alized. High reliability is obtained due to various kinds
of protectors built in. Furthermore, on-off of output is
possible from standby terminal.

■ Features

• High power output

• Low distortion, Low noise

• Low shock noise when power supply is turned-on, off

• Built-in standby function

• Built-in protection circuits

(Temperature, Overcurrent, Load short circuit, Output ­GND short circuit)

■ Applications

• Stereo, Karaoke, TV

■ Block Diagram

28.0±0.3

29.75±0.30

(10.0)(10.0)

20.0±0.3

1.2±0.1

φ3.6

R1.8

0.6

7.7±0.3

(12.5)

(1.2)

19.1±0.3

21.9±0.3

HSIP012-P-0000A

Unit : mm

121

(1.27) (1.3)

(1.27)

+0.15

–0.05

0.6

2.54

+0.10

–0.05

1.45±0.151.80±0.15

0.25

29.6±0.3

3.5±0.3

CC

V

12

6

1

5

3

Input circuit

Ripple filter

Input circuit

4 2

Driver circuit

Protection circuits for Temp. Overcurrent,
Load short, Output-GND short

Driver circuit

SEPP

output circuit

SEPP

output circuit

8 11

GND

10

7

9

GND

1

AN7164 ICs for Audio Common Use

■ Pin Descriptions

Pin No. Description

1 Ripple filter
2 Negative feedback (ch.2)
3 GND (Input side)
4 Negative feedback (ch.1)
5 Input
6 Standby

■ Absolute Maximum Ratings

Parameter Symbol Rating Unit

2

Supply voltage
Supply current I
Power dissipation
Operating ambient temperature
Storage temperature

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

2 : Without signal

*

3: θ

*

*

*

= 2.0 (°C/W)

j-c

V

CC

CC

3

1

*

1

*

P

D

T

opr

T

stg

Pin No. Description

7 Output (ch.1)
8 Bootstrap (ch.1)

9 GND (output side)
10 Output (ch.2)
11 Bootstrap (ch.2)
12 Supply voltage (VCC)

30 V

5.0 A

62.5 W

−30 to +75 °C

−55 to +150 °C

■ Recommended Operating Range

Parameter Symbol Range Unit

Supply voltage V

CC

8.3 to 24 V

■ Electrical Characteristics at VCC = 21 V, RL = 8 Ω, f = 1 kHz, BTL operation, Ta = 25°C

Parameter Symbol Conditions Min Typ Max Unit

Quiescent current I
Output noise voltage
Output offset voltage V

*1

V

OFF SETVIN

Total harmonic distortion THD PO = 1 W  0.07 0.3 %
Voltage gain G
Maximum output power P
Ripple rejection ratio

*1, 2

R.R. Rg = 0 Ω, power supply ripple 45 5 1  dB

Standby current I

Note)*1 : Measurement through the DIN audio filter.

2 : Power supply ripple ······ 120 Hz Sine wave, 1V[rms]

*

V

CQ

NO

= 0 V  55 100 mA

IN

Rg = 10 kΩ0.85 1.3 mV

= 0 V  0 300 mV

PO = 1 W 49.5 51.5 53.5 dB

V

THD = 10% 24 30  W

O

Pin 6 open  3 µA

STB

2

ICs for Audio Common Use AN7164

■ Usage Notes

Standby-on (i.e. an application of 5 V to pin 6) under a high temperature may cause no-output due to the malfunction
of rapid discharging circuit of the ripple filter. To avoid this, it is necessary to forcibly flow a current of 1 mA into pin 1
at standby-on.

■ Technical Information

• PD  Ta curves of HSIP012-P-0000A

P

 T

D

65

Infinite heat sink

62.5
60

55

50

45

1°C/W heat sink

(W)

41.7

D

40

35

2°C/W heat sink

31.3
30

3°C/W heat sink

25

20

Power dissipation P

5°C/W heat sink

17.9
15

10°C/W heat sink

10.4
10

5

Without heat sink

3.0
0

0 25 50 75 100 125 150

Ambient temperature Ta (°C)

a

= 2°C/W

R

th (j−c)

= 42°C/W

R

th (j−a)

■ Application Circuit Example

0.047 µF
220 Ω

1 µF

V

IN

2 kΩ

100 µF

100 µF

V

= 21 V

CC

1 000 µF

1

2

4

12

11

10

100 µF

2.2 Ω

5

3

6

5V

0V

7

8

100 µF

2.2 Ω

0.1 µF

9

0.1 µF

8 Ω

3