AN7168 Dual 5.8W Audio Power Amplifier Circuit ICs for Audio Common Use ■

AN7168 Dual 5.8W Audio Power Amplifier Circuit ICs for Audio Common Use ■
ICs for Audio Common Use
AN7168
Dual 5.8W Audio Power Amplifier Circuit
■ Overview
Unit : mm
The AN7168 is an integrated circuit designed for low
distortion, low noise and low power dissipation audio set
of 5.8W (13.2V, 4Ω) output. Stereo operation is enabled
due to incorporating two amplifiers on one chip. 12-pin
SIL package enabled compact and high integrated set.
Thermal protection, short protection and excessive protection circuits are built in.
5.9±0.25 7.7±0.3 7.8±0.25
ø 3.6
29.6±0.3
2.54
0.6
R1.8
■ Features
• Highly stable operation
• Low distortion
• Low quiescent current
• Low noise
• Low shock noise from power ON/OFF operation
• Built-in muting circuit
• Fewer external components
• Incorporating protection circuits
0.6±0.1
29.96±0.3
28.0±0.3
20.0±0.2
12
1
+ 0.1
1.2±0.1
3.5±0.3
0.35 – 0.05
12-Lead SIP Package with Fin (HSIP012-P-0000A)
■ Pin Descriptions
Pin No.
Pin Name
Pin No.
Pin Name
1
NFB Ch.1
7
Output Ch.2
2
Input Ch.1
8
Bootstrap Ch.2
3
Ripple Filter
9
GND (Output)
4
GND (Input)
10
VCC
5
Input Ch.2
11
Bootstrap Ch.1
6
NFB Ch.2
12
Output Ch.1
■ Block Diagram
1
11
Input
Circuit
2
Driver
Circuit
Output
Circuit
12
Over Voltage
Over Current
Over Temperature
Protection
3
Input
Circuit
5
6
Driver
Circuit
10 VCC
Output
Circuit
4
9
GND (Input)
GND (Output)
7
8
ICs for Audio Common Use
AN7168
■ Absolute Maximum Ratings (Ta= 25˚C)
Parameter
Symbol
Rating
Unit
Supply Voltage
VCC
24
V
Supply Current
ICC
4
A
Power Dissipation Note 1)
PD
41.7
W
Peak Supply Voltage Note 2)
VCC (surge)
50
V
Operating Ambient Temperature
Topr
– 30 ~ + 75
˚C
Storage Temperature
Tstg
– 55 ~ + 150
˚C
Note 1) R θ j – c = 3˚C/W
Note 2) Voltage applied time = 0.2s
■ Electrical Characteristics (VCC = 13.2V, f = 1kHz, RL= 4Ω, Ta= 25˚C)
Parameter
Symbol
Condition
min.
Quiescent Circuit Current
ICQ
Vi= 0mV
30
Voltage Gain
GV
PO= 0.5W
52
THD
Total Harmonic Distortion
Output Noise Voltage
PO= 0.5W, f= 100Hz
0.1
PO= 0.5W, f= 10kHz
0.2
THD = 10%, RL= 2Ω
8.9
3.1
Vno
Rg= 10kΩ, 1000pF, Without Filter
1.1
PO= 0.5W
CS
Ripple Rejection Ratio
RR
PO= 0.5W
PO= 0.5W, Rg = 10kΩ, Vripple= 280mVrms,
fripple= 12Hz Sine wave
PD – Ta
(1) Tc= Ta (θj – c= 3˚C/W)
(2) With a 100cm2 × 3mm Al
heat sink (black color coated)
or a 200cm2 × 2mm Al heat
sink (not lacquered)
(3) With a 100cm2 × 2mm Al
heat sink (not lacquered)
(4) Without heat sink
Power Dissipation PD (W)
30
20
(2)
(3)
10
(4)
0
0
40
80
120
Ambient Temperature Ta (˚C)
160
200
W
1.5
1
mV
dB
40
50
dB
35
45
dB
0
Vi= 0mV
50
(1)
0.8
0
CB
%
5.7
THD = 10%, RL= 8Ω
Rg= 10kΩ, 1000pF
f = 15Hz ~ 30kHz, 12dB/OCT
Channel Separation
40
dB
56
0.5
PO
VO (offset)
mA
54
5
Unit
100
0.1
Channel Balance
Offset Voltage
max.
55
PO= 0.5W, f= 1kHz
THD = 10%
Maximum Output
typ.
200
mV
ICs for Audio Common Use
AN7168
■ Application Circuit
100µF
3
+
1000µF
–
+
100µF
VCC
+
–
10
0.047µF
11
1
2.2Ω
+
–
47µF
2
–
1000µF
12
Input Ch.1
+
–
+
–
AN7168
5
7
Input Ch.2
47µF
–
1000µF
+
8
6
+
100µF
4
0.047µF
9
–
2.2Ω
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