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
±0.10
19.9
0.1
±0.25
18.3
±0.05
±0.10
φ2.65
±0.1
φ3.3
8.4
±0.25
5.8
1.5
5.6
7.1
6.3
±0.3
±0.25
±0.25
15.0
±0.25
HSIP009-P-0000
±0.25
Unit : mm
3.75
±0.25
±0.10
9
0.50
1
±0.25
1.7
±0.25
1.7
±0.25
1.20
2.54
0
0.1
+
±0.3
22.3
–0.05
0.45
■ Block Diagram
Ripple
filter
1
RF
2
GND
3
(Input)
Protection circuit
• Temperature
Att. ConAtt.
• Over-voltage
• Over-current
• Load short
4
5
6
7
8
9
In
N.C.
Out
Mute
GND
V
(Output)
CC
Standby
1
AN5279 ICs for TV
■ Pin Descriptions
Pin No. Descriptions
1 Ripple filter
2 Input GND
3 Input
4 Not connected
5 Output
■ Absolute Maximum Ratings
Parameter Symbol Rating Unit
Supply voltage V
Supply current I
2
Power dissipation
Operating ambient temperature
Storage temperature
Note) *1: Except these items, all other measurements are taken at Ta = 25 °C.
*2:Ta = 75 °C with infinite heat sink.
*
1
*
1
*
CC
CC
P
D
T
opr
T
stg
Pin No. Descriptions
6 Mute
7 Output GND
8V
CC
9 Standby
26.0 V
1.6 A
6.2 W
−25 to +75 °C
−55 to +150 °C
■ Recommended Operating Range
Parameter Symbol Range Unit
Supply voltage V
2
CC
10.0 to 24.0 V
ICs for TV AN5279
■ Electrical Characteristics at VCC = 19 V, f = 1 kHz, RL = 8 Ω, Ta = 25 °C
Parameter Symbol Conditions Min Typ Max Unit
Quiescent current I
1
Output end noise voltage
*
V
Voltage gain G
Total harmonic distortion THD VIN = 57 mV 0.2 0.4 %
Maximum Output Power P
Maximum Output power P
1
Ripple rejection ratio
*
Muting Ratio MR VIN = 57 mV, V
Muting control voltage V
Standby on voltage V
Standby off voltage V
Note) *1: For this measurement, use the 20 Hz to 20 kHz (12 dB/OCT) filter.
STD-ON
STD-OFF
VIN = 0 mV 25 50 mA
CQ
No input, Rg = 10 kΩ0.22 0.4 mV
NO
VIN = 57 mV 32 34 36 dB
V
VCC = 19 V, THD = 10 % 4.0 5.0 W
O1
VCC = 22 V, THD = 10 % 5.6 7.0 W
O2
RR Vr = 1 V
rms
45 55 dB
fr = 120 Hz, Rg = 10 kΩ
> 3.0 V 70 80 dB
MUTE
MUTEVIN
= 57 mV, MR > 70 dB 3.0 V
No input, ICC ≤ 0.1 mA 5.0 V
No input, ICC ≥ 9.5 mA 8.5 V
3