Panasonic AN7170 Datasheet

ICs for Audio Common Use

■ Overview

The AN7170 is an integrated circuit manufactured by
high voltage process designed for power amplifier of bus,
track amplifier. Wide operating supply voltage range with
output of 18W at 26.4V. It can be widely used for bus,
truck amp., car stereo, home entertainment stereo set
and TV sound multiplex output.

■ Features

•

High output power : PO =18W

•

High surge voltage : V

CC (surge)

= 60V

(max.)

•

Wide supply voltage range : V

CC (opr)

= 8 ~ 35V

•

Incorporating protection circuits (overvoltage, overcur-

rent, temperature, load short)

•

Incorporating automatic operating point stabilizer circuit

•

Low distortion, low 1/f noise

AN7170

18W Audio Power Amplifier Circuit

Unit : mm

3.6±0.2

15.0±0.3 5.85±0.25

4.7±0.6

2.7±0.4

1.0±0.2

30.0±0.3

24.0±0.3

1.26±0.25

1.8R

5.5±0.3 7.5±0.3

11
10
9
8
7
6
5
4
3
2
1

2.54

0.7±0.1

3.5±0.25

0.35±0.25

0.35

+ 0.1

– 0.05

0.95±0.25

11-Lead SIP Package (HSIP011-P-0000)

■ Block Diagram

GND

(Input)

V

9 11

Ripple
Filter

7

8

Input
Circuit

6 35

Temperature
Compensation

Driver
Circuit

CC

Surge
Over Current
Protection

Output
Circuit

GND (Output)

4

1

AN7170

ICs for Audio Common Use

V

CC

V

CC

V

CC (surge)

I

CC

P

D

T

opr

T

stg

Supply Voltage (at no signal)
Supply Voltage (at operation)
Peak Supply Voltage

Note 1)

Supply Current
Power Dissipation

Note 2)

Operating Ambient Temperature
Storage Temperature

V
V
V

A
W
˚C
˚C

Parameter Symbol Rating Unit

35
30
60

4

31.25

– 30 ~ + 75

– 55 ~ + 150

Note 1) Pulse Voltage application t = 0.2s
Note 2) Ta = 25˚C ( θ

j – c

= 4˚C/W)

■ Absolute Maximum Ratings (Ta= 25˚C)

■ Electrical Characteristics (V

CC

= 26.4V, f = 1kHz, Ta= 25˚C)

Vi= 0mV
V

i

= 3mV
THD= 1%
THD= 10%
V

i

= 3mV

Parameter Symbol Condition min. typ. max. Unit

Quiescent Circuit Current
Voltage Gain

I

CQ

G

V

40
51

8

10.5

75
53

9.5
12

0.1

0.7

160

55

0.7

1.5

mA

dB

W
W

%

mV

Total Harmonic Distortion

No Distortion Maximum Output

Output Noise Voltage

THD

V

no

P

O

P

O

RR

Z

i

dB

kΩ

W
W

Rg=

10kΩ, DIN A Filter

Vi= 0mV, Rg= 0Ω

THD= 1%
THD= 10%

Ripple Rejection Ratio
Input Impedance

No Distortion Maximum Output

40
30

13
18

(RL= 8Ω)

(RL= 4Ω)

■ Pin Descriptions

Pin No.

Pin Name
1
2
3
4
5
6

Output
NC
GND (Output)
Bootstrap
Phase Compensation
Negative Feedback

Pin No.

Pin Name
7
8
9

10
11

Input
GND (Input)
Ripple Filter
NC
V

CC