ICs for Audio Common Use
AN5276
5 W
×
2-ch (19V, 8
Ω)
power amplifier with
variable audio output and volume control
Unit : mm
29.75±0.30
28.0±0.3
20.0±0.3
s
Features
•
Few external components :
• No Boucherot cells(output C, R)
• No Bootstrap Capacitors
• No Negative Feeback Capacitors
•
Built-in muting circuit
•
Built-in stand-by circuit
•
Built-in various protection circuits
(Load-short, thermal, over-voltage and current)
•
High ripple rejection(55 dB)
•
Compatible with AN5275, AN5277
•
Operating voltage range 10 V to 24 V(19 V typ.)
R1.8
0.6
+0.10
0.25
–0.05
2.54
1
0.6
–0.05
(1.27)
(10.0)
+0.15
(12.5)
1.2±0.1
1.45±0.15
(1.2)
19.1±0.3
21.9±0.3
HSIP012-P-0000A
s
Applications
•
TV
s
Block Diagram
Att.
Ripple
filter
Att. Con
Protection circuit
• Temperature
• Over-voltage
• Over-current
• Load short
10
GND 4
(Input)
Out Ch.2
GND 9
(Output)
N.C.
Ch.1 In
RF
N.C.
Ch.2 In
Mute
11
Out Ch.1
V
CC
Standby
12
1
2
3
5
6
7
8
1.80±0.15
3.5±0.3
29.6±0.3
The AN5276 is a monolithic integrated circuit designed
for 5.0 W (19 V, 8
Ω)
output audio power amplifier. It is
a dual channel SEPP IC suitable for stereo operation in
TV application.
12
(10.0)
s
Overview
7.7±0.3
φ3.6
(1.27)
(1.3)
1
AN5276
s
Pin Descriptions
Pin No.
1
2
3
4
5
6
N.C.
Ch.1 input
Ripple filter
Input GND
Ch.2 input
N.C
Descriptions
Pin No.
7
8
9
10
11
12
ICs for Audio Common Use
Descriptions
Ch.2 output
Mute
Output GND
V
CC
Standby
Ch.1 output
s
Absolute Maximum Ratings
Parameter
Supply voltage
Supply current
Power dissipation
*2
Operating ambient temperature
*1
Storage temperature
*1
Symbol
V
CC
I
CC
P
D
T
opr
T
stg
Rating
26.0
4.0
37.5
−25
to
+75
−55
to
+150
Unit
V
A
W
°C
°C
Note) *1 : Except these items, all other measurements are taken at T
a
=
25
°C.
*2 : T
a
=
75
°C.
s
Recommended Operating Range
Parameter
Supply voltage
Symbol
V
CC
Range
10.0 to 24.0
Unit
V
2
ICs for Audio Common Use
s
Electrical Characteristics at V
CC
=
19 V, f
=
1 kHz, R
L
=
8
Ω,
T
a
=
25
°C
Parameter
Quiescent current
Output end noise voltage
*1
Voltage gain
Total harmonic distortion
Maximum Output Power
Maximum Output power
Ripple rejection ratio
*
Channel balance
Muting Ratio
Muting control voltage
Standby control voltage 'on'
Standby control voltage 'off'
Channel crosstalk
1
AN5276
Symbol
I
CQ
V
NO
G
V
THD
P
O
P
O
RR
CB
MR
V
MUTE
Conditions
V
IN
=
0 mV
No input, R
g
=
10 kΩ
V
IN
=
57 mV
V
IN
=
57 mV
V
CC
=
22 V, THD
=
10 %
V
CC
=
19 V, THD
=
10 %
V
r
=
1 V
rms
f
r
=
120 Hz, R
g
=
10 kΩ
V
IN
=
57 mV
V
IN
=
57 mV
V
IN
=
57 mV, MR
≥
70 dB
Min
32
5.6
4.0
45
−1.0
70
3.0
8.5
50
Typ
35
0.22
34
0.2
7.0
5.0
55
0
80
60
Max
70
0.4
36
0.4
1.0
5.0
Unit
mA
mV
dB
%
W
W
dB
dB
dB
V
V
V
dB
V
STD-ON
No input, I
CC
≤
0.1 mA
V
STD-OFF
No input, I
CC
≥
17 mA
CT
V
IN
=
57 mV, R
g
=
10 kΩ
Note) *1 : For this measurement, use the 20 Hz to 20 kHz (12 dB/OCT) filter.
3
AN5276
s
Terminal Equivalent Circuits
Pin No.
1
2
2
200
Ω
400
Ω
Equivalent circuit
ICs for Audio Common Use
Description
Not connected
Ch.1 input
This is the amplifier input pin.
DC voltage (V)
0
30 kΩ
4
3
10
Ripple filter
This is the pin to connect the positive
terminal of a ripple filter capactior.
V
CC
-1.5V
BE
30 kΩ
3
20 kΩ
4
4
5
5
200
Ω
15.7 kΩ 15 kΩ
Input GND
Input ground pin
400
Ω
Ch.2 input
This is the amplifier input pin.
0
30 kΩ
4
6
Not connected
4
ICs for Audio Common Use
s
Terminal Equivalent Circuits (continued)
Pin No.
7
Equivalent circuit
Description
Ch.2 output
Ch.2 output pin
AN5276
DC voltage (V)
V
CC
/2
10
Pre amp.
Driver Cct
7
600
Ω
V
CC/2
9
30 kΩ
8
10
Mute
Mute input pin.
Mute 'on'
=
5 V
Mute 'off'
=
0 V
3 kΩ
10 kΩ
8
200
Ω
3 kΩ
4
9
10
Output GND
Ch.1 & Ch.2 output ground.
V
CC
This is the power supply pin.
0
19 V(typ.)
5
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