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KIA6281H Schematic ( PDF Datasheet ) - KEC

Teilenummer KIA6281H
Beschreibung 5.8W DUAL AUDIO POWER AMPLIFIER
Hersteller KEC
Logo KEC Logo 




Gesamt 11 Seiten
KIA6281H Datasheet, Funktion
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






KIA6281H Datasheet, Funktion
KIA6281H
The output waveform at muting ON/OFF during BTL, are shown in fig. 4.
(Provided VCc=13.2V, RL=4^, non-signal.)
50dB or more can be obtained for muting amount.
1 / 2 VCC
/V
\V
OUTPUT WAVEFORM
(IV/ div)
7Pin WAVEFORM
(5V/div)
MUTE ON MUTE OFF
0.5see/div
V c c = 13.2V, R L = 4 , INPUT SHORT, BTL
Fig. 4
3. MEASURES AGAINST OSCILLATION
C7, C8, C9, C12 : The capacitor of polyester film having small variation of the
temperature characteristics is recommended as the capacitor
for oscillation prevention.
C13 : Reduces the gain in the high range frequency (150kHz or over)
and increases the oscillation allowance.
R1 : Increases the oscillation allowance at output crippling of the
low range frequency (100Hz or less).
Since the oscillation allowance varies according to the following items, carry out the
temperature test to confirm the oscillation allowance.
(1). Gain to be used (Gv setting).
(2). Capacity of capacitor
(3). Kinds of capacitor
(4). Layout of printed board
1997. 5. 8
Revision No : 0
KEC
6/11

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