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PAM8902 Datasheet(PDF) 5 Page - Power Analog Micoelectronics

Part No. PAM8902
Description  30-Vpp Mono Class-D Audio Amplifier for Piezo/Ceramic Speakers
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Maker  PAM [Power Analog Micoelectronics]
Homepage  http://www.poweranalog.com
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 5 page
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5
Electrical Characteristic
T =25 C,
A
°
V =3.6V,C =1uF,Vset float, unless otherwise noted
DD
L
.
,
Power Analog Microelectronics Inc
www.poweranalog.com
PAM8902
30-Vpp Mono Class-D Audio Amplifier for Piezo/Ceramic Speakers
01/2012 Rev1.4
Parameter
Symbol T est Condition
M in
Typ
M ax
Unit
Input voltage
Vdd
2.5
5.5
V
EN>1.2V, VSET = High
30
48
EN>1.2V, VSET = Floating
10
18
EN>1.2V, VSET = GND
5
12
Shutdown Current
ISD
EN=0V
0.1
1
uA
W ake-Up tim e
Twu
EN from low to high
40
m S
Chip Enable
Veh
1.2
Chip Disable
Vel
0.4
GSET/VSET High
Vh
Vdd-0.5
Vdd
GSET/VSET Floating
Vf
1
Vdd-1
GSET/VSET Low
Vl
0
0.5
Under Voltage lockout thres hold
UVLO
Vdd from high to low
2.2
Under Voltage lockout Hysteres is
UVLOh
Vdd from low to high
0.2
Therm al s hutdown threshold
OTP
150
Therm al s hutdown lockout Hysteresis
OTPh
30
Boost Convertor
Vo1
VSET=GND , No load
7.2
8
8.8
V
Vo2
VSET=NC , No load
10.8
12
13.2
V
Vo3
VSET=AVDD , No load
16
17.5
19
V
Current Lim it
Cl
Average input current
0.8
A
Low Side Mosfet Rdson
Rls
Io=50m A
0.5
Ω
Boost switching frequenc y
Foscb
1.1
1.5
1.9
MHz
Class D
Class D Amplifier Switching Frequency
Foscd
Input AC-GND
225
375
475
KHz
Com mon mode reject ratio
CMRR
Vin=+-100mV, Vdd=3.6V
60
dB
Ouput offset voltage
Vos
output offset voltage
5
50
m V
High side
1.5
Ω
Low side
0.6
Ω
Av1
Gset=AVDD,Vo=1Vrms
25
26
27
Av2
Gset=NC,Vo=1Vrms
21
22
23
Av3
Gset=GND,Vo=1Vrms
17
18
19
Power supply reject ratio
PSR R
200m Vpp s upply ripple at 217Hz
70
dB
Total harmonic distortion plus noise
THD+N Vo=5Vrms
0.3
%
Signal to noise ratio
SNR
Input AC Ground,A-weighting
90
dB
IQ
Closed-loop voltage gain
V
dB
m A
V
V
Output Voltage
Rds on
Rp
Quiescent Current




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