KIA6282K Datasheet PDF - KEC

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KIA6282K
KEC

Part Number KIA6282K
Description 4.6W DUAL AUDIO POWER AMPLIFIER
Page 8 Pages


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SEMICONDUCTOR
TECHNICAL DATA
KIA6282K
BIPOLAR LINEAR INTEGRATED CIRCUIT
4.6W DUAL AUDIO POWER AMPLIFIER
KIA6282K is an audio power IC with built-in two channels
developed for portable radio cassette tape recorder with power
ON/OFF switch. Because of the parts reduction and SIP
(Single Inline Package), space merit is remarkable.
Thermal shut down protection circuit is built in.
A
F
S
Q
B
FEATURES
High Power.
POUT=2.5W/CH (Typ.)
: (VCC=9V, RL=4 , f=1kHz, THD=10%)
POUT=4.6W/CH
: (VCC=12V, RL=4 , f=1kHz, THD=10%)
Low popping noise at power ON.
Small Quiescent Current.
: ICCQ=19mA (Typ.) (VCC=9V, VIN=0)
Soft Clip.
Built-in thermal shut down protection circuit.
Best for supply voltage 9V, 12V.
Operation supply voltage range : VCC=6~15V.
DETAIL "A"
P
d
D1
d
D2
DETAIL "A"
T
DIM MILLIMETERS
A 29.7+_ 0.2
B 4.0 +_ 0.2
D1 0.6+_ 0.1
D2 0.7+_ 0.1
d 0.5+_ 0.1
F 28.0+_ 0.2
G 0.5+_ 0.2
H1 8.5+_ 0.3
H2 15.0+_ 0.3
L1 2.5+_ 0.2
L2 5.5+_ 0.2
P 2.54
Q R1.6
R 0.4
S 22.0+_ 0.2
T 0.4+0.1/-0.05
SSIP-12
MAXIMUM RATING (Ta=25 )
CHARACTERISTIC
SYMBOL
Supply Voltage
Output Current (Peak/CH)
Power Dissipation
Operating Temperature
Storage Temperature
VCC
IO(peak)
PD
Topr
Tstg
RATING
20
2.5
12.5
-20 75
-55 150
UNIT
V
A
W
1994. 10. 31
Revision No : 0
1/8



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KIA6282K
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, VCC=9V, f=1kHz, Rg=600 , RL=4 , Ta=25 )
CHARACTERISTIC
SYMBOL
TEST
CIRCUIT
TEST CONDITION
Quiescent Current
ICCQ
- VIN=0
Output Power
POUT (1)
POUT (2)
- THD=10%
- THD=10%, Vcc=12V
Total Harmonic Distortion
THD
- POUT=1W/CH
Voltage Gain
GV (1)
GV (2)
- Rf=82 , VOUT=0dBm
- Rf=0, VOUT=0dBm
Input Resistance
RIN -
-
Output Noise voltage
Ripple Rejection Ratio
Cross Talk
Input Offset Voltage
VNO
R.R
C.T
V6,V7
- Rg=10k , BW=20Hz 20kHz
-
Rg=600 , VRIP=0.2Vrms
fRIP=100Hz
-
Rg=600 , Amp 1 2
VOUT=0dBm, f=1kHz
--
MIN. TYP. MAX. UNIT
- 19 45 mA
2.0 2.5
- 4.6
-
-
W
- 0.25 1.0 %
43 45 47
dB
- 56 -
- 30 - k
- 0.3 1.0 mVrms
- 54 - dB
- 45 - dB
- 20 60 mV
TYPICAL DC VOLTAGE OF EACH TERMINAL (VCC=9V, Ta=25 )
TERMINAL NO.
1 2 3 4 5 6 7 8 9 10 11 12
DC VOLTAGE (V)
* pin is connected to VCC.
8.2 4.5 VCC 8.9 0.6 0.01 0.01 0.6 GND 4.5 8.2 VCC
1994. 10. 31
Revision No : 0
2/8



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KIA6282K
BLOCK DIAGRAM/TEST CIRCUIT
VCC1
12
VCC 2
3
* CIN
IN1
IN-1 6 +
Rf1 NF1
5
ch-1
-
8230
20K
B.S.1
1
2
Ripple
4
BIAS CIRCUIT
THERMAL SHUT DOWN
PROTECTION CIRCUIT
* CIN
IN-2
IN2
7
+
Rf2 NF2
8
ch-2
-
8230
20k
9
GND
10
11
B.S.2
VCC
C8
1000uF
OUT-1
C9
1000uF
OUT-2
* This IC can be used without coupling capacitor (CIN). If volume slide noise
occured by input offset voltage is undesirable, it needs to use the capacitor (CIN).
1994. 10. 31
Revision No : 0
3/8



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KIA6282K
APPLICATION INFORMATION AND APPLICATION METHOD
1. ADJUSTMENT OF VOLTAGE GAIN
The voltage gain Gv is obtained as follows by R1, R2 and Rf in Fig. 1.
GV = 20 log
Rf+R1+R2
Rf+R1
When Rf=0, Gv=56dB(Typ.)
When Rf=82 , Gv=45dB(Typ.)
By increasing Rf, reduction of Gv is Possible.
However, since the feedback increase is liable to
produce oscillation, it is recommended to use this
at 40dB or over.
6/7 INPUT
Rf
R1
5/8 30
+
AMP
-
R2
20k
2/10
OUTPUT
Fig 1.
2. THERMAL SHUT-DOWN CIRCUIT
The thermal shut-down circuit is built in for the purpose of preventing the destruction
of IC due to the abnormal temperature rise when the heat radiation is insufficient.
The operation temperature is set at radiation Fin temperature 175 (Typ.)
At this temperature or over the bias is interrupted to prevent the destruction of IC.
3. INPUT STAGE
The input circuit of this IC is as shown in Fig. 2.
PNP TR:Q1 is provided in the input circuit so as
to make its usage possible without the input coupling
capacitor. However, at pins and , max 60mV
offset voltage is produced. Application after checking
volume slide noise is recommended.
For cutting the volume slide noise, insert the input
capacitor : CIN in series to interrupt the DC component.
Q2 Q3
INPUT
6/7 Q1
CIN
OUTPUT
20k
2/10
to DRIVER
9
GND
NF
5/8
to BIAS
Fig. 2
1994. 10. 31
Revision No : 0
4/8



KIA6282K datasheet pdf
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