PAM8902 Datasheet, PDF (5/13 Pages) Power Analog Micoelectronics – 30-Vpp Mono Class-D Audio Amplifier for Piezo/Ceramic Speakers

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