PAM8945 Datasheet, PDF (4/9 Pages) Diodes Incorporated – 4.0W CLASS-G AUDIO AMPLIFIER WITH INTEGRATED

PAM8945
Electrical Characteristics (@VBAT=3.6V, AGC=GND, TA = +25°C, RL=4Ω +33uH, unless otherwise specified.)
Symbol
VBAT
PO
THD+N
PSRR
SNR
VOP
VO_TH
VN
η
IQ
ISD
RDS(ON)
fSW
GV
RIN
VOS
IPEAK
tON
VIH
VIL
Parameter
Supply Voltage
Output Power
Total Harmonic
Distortion Plus
Noise
Power Supply Ripple
Rejection
Signal-To-Noise Ratio
Peak Output Voltage
Boost Convertor Auto-Pass
Through Threshold
Output Noise
Efficiency
Quiescent Current
Shutdown Current
Static Drain-to-Source On-
State Resistor
Switching Frequency
Test Conditions
—
THD+N=10%, f=1kHz
THD+N=1%, f=1kHz
VBAT=3.6V
PO=1.0W, RL=8Ω
PO=2W, RL=4Ω
f=1kHz
VBAT=3.6V, Input AC -
ground with C=1μF
f=217Hz
f=1kHz
f=10kHz
A-weighting
THD+N=1%
VBAT=3.6V
f=1kHz
—
—
Input AC-ground
No A-weighting
A-weighting
RL=8Ω, PO=1W
f=1kHz
VBAT=3.6V
No Load
VBAT=2.8V to 5.2V
High Side PMOS,
I=500mA
Low Side NMOS,
I=500mA
VBAT=2.8V to 5.2V
EN=0V
VBAT=5V
VBAT=5V
Boost
Class D
Closed-Loop Gain
—
—
Input Impedance
Av=20dB
—
Output Offset Voltage
Input AC-ground
—
Convertor SW Peak Current V_BAT=3.6V
—
Start-Up Time From EN
—
—
En Input High Voltage
VBAT=5V
—
En Input Low Voltage
VBAT=5V
—
Min
Typ
Max
Unit
2.8
—
5.2
V
—
4.0
—
W
—
3.2
—
W
—
0.07
—
%
—
0.15
—
—
70
—
—
70
—
dB
—
67
—
—
95
—
dB
—
5.75
—
V
—
2
— V(PEAK)
—
100
—
μV
—
60
—
—
86
—
%
—
4
—
mA
—
—
1
μA
—
260
—
mΩ
—
160
—
mΩ
—
1200
—
kHz
—
300
—
—
20
—
dB
—
24
—
KΩ
—
—
20
mV
—
4
—
A
—
6
—
ms
1.3
—
—
V
—
—
0.6
PAM8945
Document number: DS38267 Rev. 1 - 2
4 of 9
www.diodes.com
December 2015
© Diodes Incorporated