ICs for Audio Common Use
1
AN5277
Dual Channel SEPP Power Amplifier
s
Overview
The AN5277 is a monolithic integrated circuit designed
for 10.0 W (26 V, 8
)output audio power amplifier. It is
a dual channel SEPP IC suitable for stereo operation in
TV application.
s
Features
Few external components :
No Boucherot cells(output C, R)
No Bootstrap Capacitors
No Negative Feedback Capacitors
Built-in muting circuit
Built-in standby circuit
Built-in various protection circuits (Load-short, thermal,
over-voltage and current)
High ripple rejection(55 dB)
Compatible with AN5275, AN5276
Operating voltage range 10
32 V(26 V typ.)
s
Applications
TV
s
Block Diagram
HSIP012-P-0000A
Unit : mm
7.70.3
(12.5)
19.10.3
21.90.3
(1.2)
(10.0)
(10.0)
29.60.3
20.00.3
0.6
28.00.3
29.750.30
3.6
R1.8
0.6
(1.27)
(1.27)
(1.3)
12
1
+0.15 0.05
2.54
0.25
1.450.15
1.800.15
1.20.1
3.50.3
+0.10 0.05
Protection circuit
Temperature
Over voltage
Over current
Load short
Ripple
filter
ch.2 In
N.C.
ch.2 Out
ch.1 Out
Mute
N.C.
ch.1 In.
RF
GND
(Input)
GND
(Output)
V
CC
Standby
1
2
3
4
5
6
7
8
9
10
11
12
Att. con
Att.
2
AN5277
ICs for Audio Common Use
s
Absolute Maximum Ratings
Parameter
Symbol
Ratings
Unit
Supply voltage
V
CC
35.0
V
Supply current
I
CC
4.0
A
Power dissipation
*2
P
D
37.5
W
Operating ambient temperature
*1
T
opr
-
25 to
+
75
C
Storage temperature
*1
T
stg
-
55 to
+
150
C
s
Recommended Operating Range
Parameter
Symbol
Range
Unit
Supply voltage
V
CC
10.0 to 32.0
V
s
Electrical Caracteristics at V
CC
=
26 V, R
L
=
8
, f
=
1 kHz, T
a
=
25
C
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Quiescent current
I
CQ
V
IN
=
0 mV
40
80
mA
Output end noise voltage
*1
V
NO
No input,R
G
=
10 k
0.22
0..4
mV
Voltage gain
G
V
V
IN
=
57 mV
32
34
36
dB
Total harmonic distortion
*1
THD
V
IN
=
57 mV
0.2
0.4
%
Maximum output power
P
O
V
CC
=
26 V,THD
=
10 %
8.0
10.0
W
Ripple rejection ratio
*1
RR
V
R
=
1 Vrms
,
f
R
=
120 Hz, R
G
=
10 k
,
45
55
dB
Channel balance
CB
V
IN
=
57 mV
-
1.0
0
1.0
dB
Muting ratio
MR
V
IN
=
57 mV
70
80
dB
Muting control voltage
V
MUTE
V
IN
=
57 mV, MR
70 dB
3.0
V
Standby control voltage 'on'
V
STDON
No input, I
CC
0.1 mA
5.0
V
Standby control voltage 'off'
V
STDOFF
No input, I
CC
20 mA
8.5
V
Channel crosstalk
CT
V
IN
=
57 mV
,
R
G
=
10 k
50
60
dB
Note) *1 : For this measurement, use the 20 Hz to 20 kHz(12 dB/OCT) filter.
Note) *1 : T
a
=
25
C except operating ambient temperature and storage temperature.
*2 : At T
a
=
70
C.
Pin No.
Description
1
N.C.
2
ch.1 Input
3
Ripple Filter
4
Input GND
5
ch.2 Input
6
N.C.
Pin No.
Description
7
ch.2 Output
8
Mute
9
Output GND
10
V
CC
11
Standby
12
ch.1 Output
s
Pin Descriptions
ICs for Audio Common Use
AN5277
3
s
Terminal Equivalent Circuit
Pin No.
Equivalent Circuit
Description
DC Voltage
1
Not connected
2
ch.1 Input :
0 V
This is the amplifier input pins.
3
Ripple Filter :
V
CC
-
1.5 V
BE
This is the pin to connect the positive
terminal of a ripple filter capacitor.
4
Input GND :
0 V
Input ground pin.
5
Refer to Pin2
ch.2 Input :
This is the amplifier input pins.
6
Not connected
7
ch.2 Output :
V
CC
/2
ch.2 output pin
200
400
30 k
Pin2
5
4
10
3
4
30 k
20 k
15 k
15.7 k
30 k
Driver Cct
600
9
10
7
Pre-amp.
V
CC
/2
4
AN5277
ICs for Audio Common Use
s
Pin Equivalent Circuit (continued)
Pin No.
Equivalent Circuit
Description
DC Voltage
8
Mute :
Mute input pin.
Mute 'On'
=
5 V
Mute 'Off'
=
0 V
9
Output GND :
0 V
ch.1 & ch.2 output ground.
10
V
CC
:
typ. : 26 V
This is the power supply pin.
11
Standby :
This is the standby control pin.
12
ch.1 Output :
V
CC
/2
ch.1 output pin
3 k
3 k
10 k
200
4
8
10
5 k
3 k
5 k
4
10
11
30 k
Driver Cct
600
9
10
12
Pre-amp.
ICs for Audio Common Use
AN5277
5
s
Application Circuit Example
s
Usage Notes
1. External heatsink is needed when used. External heatsink should be fixed to the chassis.
2. Fin of the IC can be connected to GND.
3. Please prevent output to V
CC
short and output toGND short.
4. Load short protection will only prevent the IC from damaging if operating V
CC
<
30 V
5. The temperature protection circuit will operate at Tj around 150 C.
However, if temperature decrease, the protection circuit will automatically be deactivated and resume
normal operation.
STB
11
V
CC
R.F
.
2
5
8
12
3
10
1
N.C.
N.C.
Input
GND
4
6
9
SP
8
SP
8
V
CC
1 000
F
1 000
F
Output GND
STB 'Off'
STB 'On'
Mute 'Off'
Mute 'On'
V
CC
0 V
0 V
5 V
10 k
7
1 000
F
1
F
100
F
V
IN1
V
CC
10 k
8.2 k
1
F
V
IN2
Mute
Mute On
Mute Off
10
F
STB Off
STB On
5 V
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