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부품번호 | PA2005 기능 |
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기능 | 20W BRIDGE AMPLIFIER | ||
제조업체 | Unisonic Technologies | ||
로고 | |||
전체 16 페이지수
UNISONIC TECHNOLOGIES CO., LTD
PA2005
LINEAR INTEGRATED CIRCUIT
20W BRIDGE AMPLIFIER FOR
CAR RADIO
DESCRIPTION
The UTC PA2005 is class B dual audio power amplifier, have
designed for car radio application.
FEATURES
* High output power:
POUT=10+10W@RL=2Ω, THD=10%
POUT=20W@RL=4Ω, THD=1%
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
PA2005L-J11-A-T
PA2005G-J11-A-T
PA2005L-H14-B-T
PA2005G-H14-B-T
Package
HZIP-11A
HSIP-14B
Packing
Tube
Tube
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
1 of 16
QW-R107-035,D
PA2005
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Operating Supply Voltage
DC Supply Voltage
Peak Supply Voltage (for 50ms)
Output Peak Current (Note)
non repetitive t=0.1ms
repetitive f ≥10Hz
Power Dissipation at Tc=60°C
Junction Temperature
Storage Temperature
Note: The max. output current is internally limited.
SYMBOL
Vss
Vss
Vss
Io
Io
PD
TJ
TSTG
RATINGS
18
28
40
4.5
3.5
30
+150
-40 ~ 150
UNIT
V
V
V
A
A
W
°C
°C
THERMAL DATA
Junction to Case
PARAMETER
SYMBOL
θJC
RATINGS
3.0
UNIT
°C /W
ELECTRICAL CHARACTERISTICS
(Refer to the application circuit, Ta=25°C, Gv=50dB, Rth(heatsink)=4℃/W, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
BRIDGE
Supply Voltage
Output Offset Voltage
(between pin 8 and pin 10)
Total Quiescent Drain Current
Output Power
Total Harmonic Distortion
f=1KHz
Input Sensitivity
f=1kHz
Input Resistance
Low Frequency Roll Off (-3dB)
High Frequency Roll Off (-3dB)
Closed Loop Voltage Gain
Total Input Noise Voltage
Supply Voltage Rejection
Efficiency
Thermal Shut-down Junction
Temperature
Output Voltage With One Side of
the Speaker Shorted to Ground
Vss
Vos
ID
POUT
THD
VIN
RIN
fL
fH
GV
eN
SVR
η
TJ
VOSH
Vss=14.4V
Vss=13.2V
Vss=14.4V, RL=4Ω
Vss=13.2V, RL=3.2Ω
THD=10%, f=1Hz
Vss=14.4V, RL=4Ω
RL=3.2Ω
Vss=13.2V, RL=3.2Ω
Vss=14.4V, RL=4Ω
POUT=50mW ~ 15W
Vss=13.2V, RL=3.2Ω
POUT=50mW ~ 13W
POUT=2W, RL=4Ω
POUT=2W, RL=3.2Ω
f=1kHz
RL=3.2Ω
RL=3.2Ω
f=1kHz
RG=10kΩ(Note 1)
RG=10kΩ, C4=10μF
FRIPPLE=100Hz, VRIPPLE=0.5V
Vss=14.4V, f=1kHz
POUT=20W, RL=4Ω
POUT=22W, RL=3.2Ω
Vss=13.2V, f=1kHz
POUT=19W, RL=3.2Ω
Vss=14.4V, RL=4Ω
f=1kHz, PD=13W
Vss=14.4V, RL=4Ω
Vss=13.2V, RL=3.2Ω
8 18
150
150
75 150
70 160
18 20
20 22
17 19
1
1
9
8
70
40
20
50
3 10
45 55
60
60
58
145
2
UNIT
V
mV
mV
mA
mA
W
%
%
mV
mV
kΩ
Hz
kHz
dB
μV
dB
%
%
°C
V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 16
QW-R107-035,D
4페이지 PA2005
LINEAR INTEGRATED CIRCUIT
BRIDGE AMPLIFIER DESIGN
The following consideraions can be useful when designing a bridge amplifier.
PARAMETER
SINGLE ENDED
VOUT max Peak Output Voltage (before clipping)
1
2
(Vs-2VCE sat)
BRIDGE
Vs-2VCE sat
IOUT max Peak Output Current (before clipping)
1 Vs-2VCE sat
2 RL
Vs-2VCE sat
RL
POUT max RMS Output Power (before clipping)
1 (Vs-2VCE sat)2
4 2RL
(Vs-2VCE sat)2
2RL
Where: VCE sat=output transistors saturation voltage
Vs=allowable supply voltage
RL=load impedance
Voltage and current swings are twice for a bridge amplifier in comparison with single ended amplifier. In order
words, with the same RL the bridge configuration can deliver an output power that is four times the output power of a
single ended amplifier, while, with the same max output current the bridge configuration can deliver an output power
that is twice the output power of a single ended amplifier. Core must be taken when selecting Vs and RL in order to
avoid an output peak current above the absolute maximum rating.
From the expression for Io max, assuming Vs=14.4V and VCE sat=2V, the minimum load that can be driven by
UTC PA2005 in bridge configuration is:
The voltage gain of the bridge configuration is given by (see Figure 3):
Gv= V0
V1
=1+
R1
R2× R4
+
R2 + R4
R3
R4
For sufficiently high gains (40 ~ 50dB) it is possible to put R2=R4 and R3=2R1, simplifing the formula in:
Gv=4
R1
R2
Gv (dB)
40
50
R1(Ω)
1000
1000
R2=R4(Ω)
39
12
R3(Ω)
2000
2000
Bridge Configuration
VD
Vi +
+
--
RL
R1 R3
R4
R2
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
7 of 16
QW-R107-035,D
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부품번호 | 상세설명 및 기능 | 제조사 |
PA2003 | Ultra Linear Driver Amplifier | Tyco Electronics |
PA2005 | 20W BRIDGE AMPLIFIER | Unisonic Technologies |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |