2.4W, Single-Supply, Class G Power Amplifier
ABSOLUTE MAXIMUM RATINGS
(Voltages with respect to GND.)
, CPV
Continuous Power Dissipation (T = +70°C)
A
V
CC
.............................................................-0.3V to +6V
DD
20-Bump UCSP (derate 10.3mW/°C above +70°C) .....827mW
28-Pin TQFN (derate 20.8mW/°C above +70°C) ........1667mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
Bump Temperature (soldering) Reflow............................+235°C
PV , SV ...............................................................-6V to +0.3V
SS
SS
CPGND..................................................................-0.3V to +0.3V
OUT+, OUT-...................................(SV - 0.3V) to (V
+ 0.3V)
+ 0.3V)
SS
CC
CC
IN+, IN-, FB+, FB- ......................................-0.3V to (V
C1N..........................................(PV - 0.3V) to (CPGND + 0.3V)
SS
C1P.......................................(CPGND - 0.3V) to (CPV
FS, SHDN ...................................................-0.3V to (V
Continuous Current Into/Out of
+ 0.3V)
+ 0.3V)
DD
CC
MAX9730
OUT+, OUT-, V , GND, SV .....................................800mA
CC
SS
CPV , CPGND, C1P, C1N, PV .................................800mA
DD
SS
Any Other Pin ..................................................................20mA
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
= CPV
= SHDN = 3.6V, GND = CPGND = 0V, R
= R = 10kΩ, R
= R
= 10kΩ, R = 100kΩ, C1 = 4.7µF, C2 =
FB-
FS
IN+
IN-
FB+
CC
DD
10µF; speaker load resistors (R ) are terminated between OUT+ and OUT-, unless otherwise stated; T = T
to T
, unless other-
L
A
MIN
MAX
wise noted. Typical values are at T = +25°C.) (Notes 1, 2)
A
PARAMETER
GENERAL
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
Quiescent Current
V
Inferred from PSRR test
2.7
5.5
12
V
CC
I
8
mA
W
CC
Chip Power Dissipation
Shutdown Current
P
V
= 2.8V
, f = 1kHz, R = 8Ω
0.9
0.3
DISS
OUT
RMS
L
I
SHDN = GND
5
µA
SHDN
Time from shutdown or power-on to full
operation
Turn-On Time
t
50
ms
V
ON
Input DC Bias Voltage
V
IN_ inputs
1.1
55
1.24
83
1.4
110
430
BIAS
I
= 0mA (slow mode)
LOAD
LOAD
Charge-Pump Oscillator
Frequency (Slow Mode)
f
kHz
OSC
I
> 100mA (normal mode)
230
330
200
Maximum Capacitive Load
C
pF
V
L
V
V
1.4
IH
IL
SHDN Input Threshold (Note 3)
0.4
1
SHDN Input Leakage Current
µA
SPEAKER AMPLIFIER
T
T
= +25°C
3
68
15
20
A
Output Offset Voltage
V
mV
dB
OS
≤ T ≤ T
MAX
MIN
A
Common-Mode Rejection Ratio
CMRR
f
= 1kHz (Note 4)
IN
Peak voltage into/out of shutdown
A-weighted, 32 samples per second
(Notes 5, 6)
Click-and-Pop Level
V
-52
dBV
CP
2
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