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PAM8905 データシート(PDF) 4 Page - Diodes Incorporated

部品番号 PAM8905
部品情報  1.9W Class-D Audio Amplifier with Integrated Boost Converter and Battery Tracking AGC
PDF  9 Pages
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メーカー  DIODES [Diodes Incorporated]
ホームページ  http://www.diodes.com
Logo DIODES - Diodes Incorporated

PAM8905 データシート(HTML) 4 Page - Diodes Incorporated

  PAM8905 Datasheet HTML 1Page - Diodes Incorporated PAM8905 Datasheet HTML 2Page - Diodes Incorporated PAM8905 Datasheet HTML 3Page - Diodes Incorporated PAM8905 Datasheet HTML 4Page - Diodes Incorporated PAM8905 Datasheet HTML 5Page - Diodes Incorporated PAM8905 Datasheet HTML 6Page - Diodes Incorporated PAM8905 Datasheet HTML 7Page - Diodes Incorporated PAM8905 Datasheet HTML 8Page - Diodes Incorporated PAM8905 Datasheet HTML 9Page - Diodes Incorporated  
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PAM8905
Document number: DS37026 Rev. 2 - 2
4 of 9
www.diodes.com
May 2015
© Diodes Incorporated
PAM8905
A Product Line of
Diodes Incorporated
1.9W Class-D Audio Amplifier with Integrated
Boost Converter and Battery Tracking AGC
Electrical Characteristics (@VBAT=3.6V, AGC=GND, TA = +25°C, RL=8Ω+33µH, unless otherwise specified.)
Symbol
Parameter
Test Conditions
MIN
TYP
MAX
UNIT
VBAT
Supply Voltage
2.8
5.2
V
Po
Output Power
THD+N=1%,f=1kHz
VBAT=3.6V
1900
mW
VBAT=3.0V
1750
VBAT=2.8V
1600
THD+N
Total Harmonic
Distortion Plus
Noise
Po=1.0W,RL=8
Ω
f=1kHz
0.07
%
Po=2W,RL=4
Ω
0.15
PSRR
Power Supply Ripple
Rejection
VBAT=3.6V, Inputs AC-
G
rounded with C=1μF
f=217Hz
-70
dB
f=1kHz
-70
SNR
Signal-to-Noise Ratio
A-Weighting
THD+N=1%
95
dB
Vop
Peak Output Voltage
VBAT=3.6V
f=1kHz
5.75
V
Vo_TH
Boost Convertor Auto-Pass
Through Threshold
2
Vpk
Vn
Output Noise
Inputs AC-Grounded
No A-Weighting
100
μV
A-Weighting
60
η
Efficiency
VBAT=4.2V, Po=1.5W
f=1kHz
85
%
IQ
Quiescent Current
VBAT=3.6V
No Load
4
mA
Isd
Shutdown Current
VBAT=2.8V to 5.2V
EN=0V
1
μA
Rdson
Static Drain-to Source On-
State Resistor
High Side PMOS,I=500mA
VBAT=5V
260
mΩ
Low Side NMOS,I=500mA
VBAT=5V
160
mΩ
fsw
Switching Frequency
VBAT=2.8V to 5.2V
Boost
1200
kHz
Class D
300
Gv
Closed-Loop Gain
20
dB
RIN
Input Impedance
Av=20dB
24
KΩ
Vos
Output Offset Voltage
Input AC-Ground
10
mV
Ipeak
Convertor SW Peak Current
VBAT=3.6V
2
A
Ton
Start-up Time From EN
6
mS
VIH
EN Input High Voltage
VBAT=5V
1.3
V
VIL
EN Input Low Voltage
VBAT=5V
0.6



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