UNISONIC TECHNOLOGIES CO., LTD
AN17823
Preliminary
LINEAR INTEGRATED CIRCUIT
BTL 4.0W X 1CH POWER
AMPLIFIER
DESCRIPTION
The UTC
AN17823
is BTL 4.0W x 1CH power amplifier with
standby function and volume function.
FEATURES
* 3-W output (8Ω) with supply voltage of 8V
* 4-W output (8Ω) with supply voltage of 9V
* On-chip standby function
* On-chip volume function
ORDERING INFORMATION
Ordering Number
Lead Free
AN17823L-H09-B-T
Halogen Free
AN17823G-H09-B-T
Package
HSIP-9B
Packing
Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
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QW-R107-063.a
AN17823
Preliminary
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM AND PIN CONFIGURATION
1
V
CC
2
Ch Output (+)
Ch Output (-)
N.C
GND (Output)
Standby
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
9
PIN NAME
V
CC
Ch Output (+)
GND (Output)
Ch Output (-)
Standby
Ch Input
GND (Input)
N.C
Volume
DESCRIPTION
Supply Voltage
Output+
Power Ground
Output-
Standby
Signal Input
Signal Ground
No Connect (Do not apply voltage or current from outside.)
Volume
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
GND (Input)
Ch Input
Volume
-
3
+
-
+
Low
Gain
-
+
4
5
6
7
8
9
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QW-R107-063.a
AN17823
Preliminary
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING
(T
A
= 25°C, Unless otherwise specified.)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage (DC)
V
CC
14.4
V
Output Current
Iout
1.0
A
Power Dissipation (T
A
= 70°C)
P
D
1.22
W
Storage Temperature (Note )
T
STG
-55 ~ +150
°C
Operating Temperature (Note )
T
OPR
-25 ~ +70
°C
Notes:
Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING RATINGS
PARAMETER
Supply Voltage
SYMBOL
V
CC
RATINGS
3.5 ~ 13.5
UNIT
V
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C, V
CC
=8.0V, frequency=1kHz and R
L
=8Ω, Unless otherwise specified.)
TEST CONDITIONS
V
IN
=0V, Vol=0V
V
IN
=0V, Vol=0V
R
G
=10kΩ, Vol=0V
P
O
=0.5W, Vol=1.25V
THD=10%, Vol=1.25V
V
CC
=9V, THD=10%, Vol=1.25V
R
G
=10kΩ, Vol=0V
Ripple Rejection Ratio (Note )
RR
V
R
=0.5Vrms, fr=120Hz
Output Noise Voltage (Note )
V
NO
R
G
=10kΩ, Vol=0V
Volume Attenuation Ratio (Note )
Att
P
O
=0.5W, Vol=0V
Voltage Gain
G
V
P
O
=0.5W, Vol=1.25V
Middle Voltage Gain
G
VM
P
O
=0.5W, Vol=0.6V
Standby Pin Current
I
STB2
V
IN
=0V, V
STB
=3V
Volume Pin Current
I
VOL
V
IN
=0V, V
O
l=0V
Input Impedance
Zi
V
IN
=±0.3V
DC
Note: In measuring, the filter for the range of 15 Hz ~ 30 kHz (12 dB/OCT) is used.
PARAMETER
Quiescent Circuit Current
Standby Current
Output Offset Voltage
Total Harmonic Distortion
Maximum Power Output 1
Maximum Power Output 2
SYMBOL
I
CQ
I
STB
V
OFF
THD
P
O
1
P
O
2
MIN
TYP
20
1
0
0.10
3.0
4.0
50
0.10
85
33
23.5
0.4
MAX
60
10
250
0.5
UNIT
mA
µA
mV
%
W
W
dB
mVrms
dB
35
dB
26.5
dB
25
µA
µA
36
kΩ
-250
2.4
3.2
30
70
31
20.5
-12
24
30
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R107-063.a
AN17823
Preliminary
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
UTC AN17823
1
+
2
3
4
5
6
+
1.0µ
10k
68k
7
8
9
470µ
10µ
OUT1
8Ω
V
CC
+
270k
5V
0V
V
IN
0V
1.25V
Stand-by
Volume
APPLICATION INFORMATION
1. Make sure that the IC is free of any pin short-circuiting, ground short, and load short-circuiting.
2. Ground the radiation fin so that there will be no difference in electric potential between the radiation fin and
ground.
3. The thermal protection circuit operates at a Tj of approximately 150°C. The thermal protection circuit is reset
automatically when the temperature drops.
4. Make sure that the heat radiation design is effective enough if the Vcc is comparatively high or the IC operates
high output power.
5. Connect only ground pin for signal sources to the signal GND pin of the amplifier on the previous stage.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R107-063.a
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