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PDF KIA6281H Data sheet ( Hoja de datos )
| Número de pieza | KIA6281H | |
| Descripción | 5.8W DUAL AUDIO POWER AMPLIFIER | |
| Fabricantes | KEC | |
| Logotipo |  |
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KEC
"
SEMICONDUCTOR
TECHNICAL DATA
KIA6281H
BIPOLAR LINEAR INTEGRATED CIRCUIT
5.8W DUAL AUDIO POWER AMPLIFIER.
22W BTL AUDIO POWER AMPLIFIER.
The KIA6281H is dual audio power amplifier
for consumer application.
It is designed for high power, low distortion and
low noise.
It also contains various kind of protectors.
It is suitable for car-audio power amplifier with
high performance.
FEATURES
* High Power
PouTd)=22W(Typ.)
(Vcc=14.4V, f=lkHz, THD=10%, RL=4&, BTL)
PouT(2)=19W(Typ.)
(Vcc=13.2V, f=lkHz, THD=10%, RL=4&, BTL)
PouT(3)=15W(Typ.)
(Vcc=13.2V, f=lkHz, THD=1%, RL=4&, BTL)
PouT(4)=5.8W(Typ.)/ch
(VCc=13.2V, f=lkHz, THD=10%, RL=4&, DUAL).
* Low Distortion
THD(l)=0.03% (Typ.)
(Vcc=13.2V, f=lkHz, POUT=4W, Gv=40dB, RL=4&, BTL)
THD(2)=0.06% (Typ.)
(Vcc=13.2V, f=lkHz, POUT=1W, Gv=52dB, RL=4&, DUAL).
* Low Noise
VNo(i)=0.14mVrms (Typ.)
(Vcc=13.2V, RL=4^, Gv=40dB, Rg=0, DIN Noise : DIN45405)
VNo(2)=0.7mVrms (Typ.)
(Vcc=13.2V, RL=4&, Gv=52dB, Rg=10k&, BW=20Hz~ 20kHz, DUAL).
* Protector Circuit
Thermal shut down, over voltage protection
Out-Vcc short, OUT-GND short and Out-Out short protection.
* Operating supply voltage range
Vcc=9~18V.
CPP-12
DIM
A
B
D
d
G
HI
H2
LI
L2
M
N
PI
P2
Q
Rl
R2
S
T
MILLIMETERS
22.6± 0.2
4.0± 0.2
1.1±0.1
0.55±0.1
1.55± 0.2
11.25± 0.3
14.5±0.3
6.55± 0.3
7.05± 0.3
2 . 0 7 5 TYP.
1.5 TYP.
1.778
2.0
3.7± 0.2
0.4
R1.85
15.6± 0.2
0.4+0.1/-0.05
1997. 5. 8
Revision No : 0
KEC
1/11
1 page  
KIA6281H
Amp. 1 is noninverting amplifier and Amp. 2 is invert one.
The output voltage is divided by resistors R3 and R4.
The divided voltage is applied to inverting input of Amp. 2.
R3 and R4 are determined in the following equation.
20 log
(dB) Gv in Dual Mode
The voltage gain in this circuit is 6dB higher than that in Dual Mode.
Gv = 201og
Rf + R1 +
Rf + R
R2
+
6(dB)
In case of Rf=0
Gv=52+6=58(dB)
In case of Rf=430^
Gv=34+6=40(dB)
Each voltage gain can be set as shown above.
2.MUTING
Audio muting can be accomplished by connecting pin © (ripple filter) to GND as shown in Fig. 3.
Then, the bias circuits are cut off.
However, caution must be exercised to the following items.
(1) The recovery time from the muting operation is determined by the capacities
of the ripple filter capacitor between © pin and GND, and of the capacitor for NF.
(2) As this muting system is operated by the short-circuit of ripple filter : C5, the
ripple rejection ratio becomes worse in the muting condition.
At mute ON, some pop noises of breaking the bias are produced.
Fig. 3
1997. 5. 8
Revision No : 0
KEC
5/11
5 Page 
KIA6281H
P D ~ POUT
(BTL)
f=lkHz
RL=40
/r
L/
Vtr
O8
^TH[D= 1T%illn—i nv
1
VCC=16V
VCC=9V
Vcc= 13.2V
16 24 32 40
OUTPUT POWER POUT (W)
48
PD(MAX) -
f=lkHz
RL=40
Vcc
BTL)
//
•/ /
/f
6 8 10 12 14 16 18 20
SUPPLY VOLTAGE V c c (V)
P D ~ POUT
(DUAL;
10
f=lkHz
p
PL,
8
THD=1%
RL=4fi
£0 6
1 ///HCCOOH 4
/QHH
/2 /
THD=10%
Vcc =16V
V VCC=13.2V
VVCC=9V
OH. 0
2 4 6 8 10 12
OUTPUT POWER POUT (W)
£
P D ( M A X ) - Vcc
(DUAL)
10
H£pi
Vcc = 13.2V
RL=4fi
i
O f=lkHz
HH
/
*
t
/ / / /S3
/
t
CIh
HBQH
QmHH
Dh
oa. /
sp 6 8 10 12 14 16 18 20
SUPPLY VOLTAGE V C C (V)
VNO - R g
HDUAL (Gy=52dB
33
BTL (Gy=40dB
VQC = 13.2V
RL=4G
10 30 100 300 lk 3k 10k 30k 100k
SIGNAL SOURCE RESISTANCE Rg (Q)
30
25 c
E 20
% 15
p?10 <
£o
d
< j 25
PD MAX - Ta
(D INFINITE
HEAT SINK
© 4.1°C/W
\\ HEAT SINK
<3> 9.5°C/W
\> HEAT SINK
\\\\
>
50 75 100 125 150 175
AMBIENT TEMPERATURE Ta (°C)
1997. 5. 8
Revision No : 0
KEC
11/11
11 Page | ||
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| PDF Descargar | [ Datasheet KIA6281H.PDF ] | |
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