Panasonic AN7147N Datasheet
ICs for Audio Common Use
■ Overview
The AN7147N is an integrated circuit designed for
power amplifier of 5.3W (12.0V, 3Ω) output. Stereo operation is enabled due to incorporating two amps. on one
chip. It makes high reliability by smaller quiescent current
compared with power amp. current and protectors built in.
As quiescent circuit current is very small, it is most suitably used for battery operated set such as radio cassette
recorder. Furthermore, low distortion and low noise are
realized and external components are very few. 12-pin
SIL package enabled compact and high integrated set.
■ Features
•
Low quiescent current
•
High operation stability
•
Low radiation
•
Low distortion
•
Low noise
•
Low shock noise from power ON/OFF operation
•
Fewer external componetns
AN7147N
Dual 5.3W Audio Power Amplifier Circuit
29.96±0.3
29.6±0.3
12
1
28.0±0.3
20.0±0.2
5.9±0.25 7.7±0.3 7.8±0.25
1.2±0.1
2.54
0.6±0.1
3.5±0.3
0.35
+ 0.1
– 0.05
ø 3.6
R1.8
0.6
12-Lead SIP Package with Fin (HSIP012-P-0000A)
Unit : mm
■ Block Diagram
■ Pin Descriptions
Pin No.
Pin Name
1
2
3
4
5
6
N.F.B Ch.1
Input Ch.1
Ripple Filter
GND (Input)
Input Ch.2
N.F.B Ch.2
Pin No.
Pin Name
7
8
9
10
11
12
Output Ch.2
Bootstrap Ch.2
GND (Output)
V
CC
Bootstrap Ch.1
Output Ch.1
2
3
5
1 11
Input
Circuit
Input
Circuit
6 4 9 8
Driver
Circuit
Driver
Circuit
Over Current
Over Temperature
Protection
GND (Output)GND (Input)
Output
Circuit
Output
Circuit
12
10
V
CC
7
ICs for Audio Common Use
AN7147N
■ Absolute Maximum Ratings (Ta= 25˚C)
V
CC
I
CC
P
D
T
opr
T
stg
Supply Voltage
Supply Current
Power Dissipation
*
Operating Ambient Temperature
Storage Temperature
V
A
W
˚C
˚C
Parameter Symbol Rating Unit
24
4
41.7
– 30 ~ + 75
– 55 ~ + 150
*
R
θj – c
= 3˚C/W
Parameter Symbol Condition min. typ. max. Unit
■ Electrical Characteristics (V
CC
= 12V, RC = 3Ω, f = 1kHz, Ta = 25˚C)
Quiescent Circuit Current
Voltage Gain
Total Harmonic Distortion
Maximum Output Power
Output Noise Voltage
Channel Balance
Channel Separation
Ripple Rejection Ratio
Output Offset Voltage
I
CQ
G
V
THD
P
O
V
no
CB
CS
RR
V
O (offset)
Vi = 0mV
P
O
= 1.0W
P
O
= 1.0W, f = 1kHz
P
O
= 1.0W, f = 100Hz
P
O
= 1.0W, f = 10kHz
THD
= 10%, RL = 3Ω
THD
= 10%, RL = 4Ω
THD
= 10%, V
CC
= 9V, RL = 3Ω
R
g
= 10kΩ, f = 15Hz ~ 30kHz,
12dB/OCT
R
g
= 10kΩ, Without Filter
P
O
= 0.5W
P
O
= 0.5W
P
O
= 0.5W
V
i
= 0
42.5
4.7
40
45
13
44.5
0.2
0.4
0.3
5.3
4.3
2.9
0.25
0.40
0
50
50
0
19
46.5
0.75
0.5
1
200
mA
dB
%
W
mV
dB
dB
dB
mV
Note) Operating Supply Voltage Range : 5V to 22V
PD – Ta
50
40
30
20
10
0
Ambient Temperature Ta (˚C)
Power Dissipation P
D
(W)
0 40 80
(1) Tc= Ta (θ
j – c
= 3˚C/W)
(2) With a 100cm
2
× 3mm Al
heat sink (black color coated)
or a 200cm
2
× 2mm Al heat
sink (not lacquered)
(3) With a 100cm
2
× 2mm Al
heat sink (not lacquered)
(4) Without heat sink
(4)
(3)
(2)
(1)
160120
Loading...