ICs for TV
AN5279
Mono channel SEPP audio power amplifier IC
■ Overview
The AN5279 is a monolithic integrated circuit designed for 5.0 W (19 V, 8 Ω) output audio power amplifier. It is a mono channel SEPP IC suitable for TV application.
■ 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)
•Operating voltage range 10 V to 24 V(19 V typ.)
■ Applications
• TV
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Unit : mm |
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±0.10 |
8.4±0.25 |
6.3±0.3 |
7.1±0.25 |
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5.8±0.25 |
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3.75±0.25 |
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φ2.65 |
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1.5±0.25 |
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1.20±0.25 |
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9 |
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3.3±0.1 |
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0.50±0.10 |
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19.9±0.10 |
18.3±0.25 |
φ |
15.0 |
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22.3±0.3 |
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1 |
2.54 |
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0.1±0.05 |
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5.6±0.25 |
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1.7±0.25 |
0 |
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1.0+ |
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0.45050.– |
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1.7±0.25 |
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HSIP009-P-0000 |
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■ Block Diagram
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Protection circuit |
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• Temperature |
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Att. |
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Att. Con |
• Over-voltage |
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• Over-current |
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• Load short |
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Ripple |
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filter |
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
RF |
GND (Input) |
In |
N.C. |
Out |
Mute |
GND (Output) |
CC |
Standby |
V |
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AN5279 |
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ICs for TV |
■ Pin Descriptions |
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Pin No. |
Descriptions |
Pin No. |
Descriptions |
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1 |
Ripple filter |
6 |
Mute |
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2 |
Input GND |
7 |
Output GND |
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3 |
Input |
8 |
VCC |
4 |
Not connected |
9 |
Standby |
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5Output
■Absolute Maximum Ratings
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Parameter |
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Symbol |
Rating |
Unit |
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Supply voltage |
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VCC |
26.0 |
V |
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Supply current |
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ICC |
1.6 |
A |
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Power dissipation *2 |
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PD |
6.2 |
W |
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Operating ambient temperature *1 |
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Topr |
−25 to +75 |
°C |
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Storage temperature *1 |
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Tstg |
−55 to +150 |
°C |
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Note) *1 |
: Except these items, all other measurements are taken at Ta = 25 °C. |
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*2 |
: Ta = 75 °C with infinite heat sink. |
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■ Recommended Operating Range
Parameter |
Symbol |
Range |
Unit |
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Supply voltage |
VCC |
10.0 to 24.0 |
V |
2
ICs for TV |
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AN5279 |
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■ Electrical Characteristics at VCC = 19 V, f = 1 kHz, RL = 8 Ω, Ta = 25 °C |
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Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Unit |
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Quiescent current |
ICQ |
VIN = 0 mV |
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25 |
50 |
mA |
Output end noise voltage *1 |
VNO |
No input, Rg = 10 kΩ |
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0.22 |
0.4 |
mV |
Voltage gain |
GV |
VIN = 57 mV |
32 |
34 |
36 |
dB |
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Total harmonic distortion |
THD |
VIN = 57 mV |
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0.2 |
0.4 |
% |
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Maximum Output Power |
PO1 |
VCC = 19 V, THD = 10 % |
4.0 |
5.0 |
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W |
Maximum Output power |
PO2 |
VCC = 22 V, THD = 10 % |
5.6 |
7.0 |
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W |
Ripple rejection ratio *1 |
RR |
Vr = 1 Vrms |
45 |
55 |
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dB |
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fr = 120 Hz, Rg = 10 kΩ |
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Muting Ratio |
MR |
VIN = 57 mV, VMUTE > 3.0 V |
70 |
80 |
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dB |
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Muting control voltage |
VMUTE |
VIN = 57 mV, MR > 70 dB |
3.0 |
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V |
Standby on voltage |
VSTD-ON |
No input, ICC ≤ 0.1 mA |
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5.0 |
V |
Standby off voltage |
VSTD-OFF |
No input, ICC ≥ 9.5 mA |
8.5 |
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V |
Note) *1 : For this measurement, use the 20 Hz to 20 kHz (12 dB/OCT) filter.
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