8002.pdf 데이터시트 (총 17 페이지) - 파일 다운로드 8002 데이타시트 다운로드

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8002
8002 DataSheet V1.0
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CONTENTS
8002
General Description...........................................................................................................................................4
Features.............................................................................................................................................................4
Applications......................................................................................................................................................4
Typical Application Circuit...............................................................................................................................4
Absolute Maximum Ratings..............................................................................................................................5
Electrical Characteristics...................................................................................................................................5
Pin Configuration..............................................................................................................................................6
Pin Layout.....................................................................................................................................................6
Pin Discription...............................................................................................................................................6
Typical Characteristics......................................................................................................................................7
THD, THD+N,S/N........................................................................................................................................7
Power Supply Rejection Ratio (PSRR)...........................................................................................................9
Power Dissipation........................................................................................................................................10
Output Power...............................................................................................................................................11
Application Information..................................................................................................................................12
BLOCK DIAGRAM...................................................................................................................................12
BRIDGE CONFIGURATION EXPLANATION..........................................................................................13
POWER DISSIPATION..............................................................................................................................13
POWER SUPPLY BYPASSING...................................................................................................................14
SHUTDOWN FUNCTION.........................................................................................................................14
PROPER SELECTION OF EXTERNAL COMPONENTS.........................................................................14
Selection of Input Capacitor Size..................................................................................................................15
AUDIO POWER AMPLIFIER DESIGN......................................................................................................15
A 1W/8Audio Amplifier......................................................................................................................15
Physical Size of Chip Package.....................................................................................................................17
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8002
FIGURE LIST
Figure1. typical Audio Amplifier Application Circuit.........................................................................................4
Figure2. SOP Package Pin Distribution...............................................................................................................6
Figure3. The block diagram of 8002.................................................................................................................12
Figure4. The Package of SOP-8........................................................................................................................17
TABLE LISTS
Table1. Chip Limit Parameter Table....................................................................................................................5
Table2. Electrical Characteristics......................................................................................................................5
Table3. Pin Discription......................................................................................................................................6
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8002
General Description
The 8002 is an audio power amplifier primarily designed for demanding applications in low-power portable
systems. It is capable of delivering 3 watts of continuous average power to an 3BTL load with less than 10%
distortion (THD) from a 5VDC power supply. the 8002 does not require output coupling capacitors or bootstrap
capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power
consumption is a primary requirement.the 8002 features a low-power consumption shutdown mode.the 8002 contains
advanced pop & click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off
transitions. The 8002 is unity-gain stable and can be configured by external gain-setting resistors
Features
Power Output at 5.0V, 10% THD+N, 33W (typ)
Power Output at 5.0V,10% THD+N,42.65W (typ)
Power Output at 5.0V,10% THD+N,81.8W (typ)
Shutdown Current 0.6µA (typ)
Available in space-saving packages: SOP
Improved pop & click circuitry eliminates noise during turn-on and turn-off transitions
2.20- 5.5V operation
No output coupling capacitors, snubber networks or bootstrap capacitors required
Unity-gain stable
External gain configuration capability
Applications
Portable computers
Desktop computers
Low voltage audio systems
Typical Application Circuit
ypical Audio Amplifier Application Circuit
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Absolute Maximum Ratings
Chip Limit Parameter Table
8002
Name
Parameter
Supply Voltage
Storage Temperature
6.0V
−65°C to +150°C
Input Voltage
−0.3V to VDD +0.3V
ESD Susceptibility
2000V
Junction Temperature
150°C
Thermal Resistance
θJA 210°C/W
θJC 56°C/W
WARNING: In addition to limits or any other conditions, the chip may be damaged.
Electrical Characteristics
The following specifications apply for VDD=5V and RL=8Ω, unless otherwise specified. Limits apply for TA = 25°C.
Electrical Characteristics
Symbol
Parameter
Conditions
Quiescent Power Supply VIN=0V,IO=0A, No load
IDD Current
VIN=0V,IO=0A, 8load
8002
Typical
65
Max
10
70
10
Units
(Limits)
mA
mA
IOFF
VOS
RO
PO
TD
Shutdown Current
Outpt Offset Voltage
Resistor Output
Output Power,3ΩLoad
Output Power,4ΩLoad
Output Power,8ΩLoad
Output Power,3ΩLoad
Output Power,4ΩLoad
Output Power,8ΩLoad
Wake-up time
THD1%,f=1KHz
THD1%,f=1KHz
THD1%,f=1KHz
THD+N10%,f=1KHz
THD+N10%,f=1KHz
THD+N10%,f=1KHz
08
57
85
23
2
1.3
3
256
18
100
2
30
10
uA
mV
KΩ
W
W
mS
THD+N
PSRR
TotalHarmonic
Distortion+Noise
Power Supply Rejection
Ratio
20Hz f 20kHz, AVD = 2
RL = 8, PO= 1W
Vripple=200mV sine P-P
Input terminated With 10Ω
0.2
63(f=217Hz)6
7(f=1KHz)
60
(min)
dB
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