Rainbow Electronics MAX9730 User Manual
Page 2
MAX9730
2.4W, Single-Supply, Class G Power Amplifier
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= CPV
DD
= SHDN = 3.6V, GND = CPGND = 0V, R
IN+
= R
IN-
= 10kΩ, R
FB+
= R
FB-
= 10kΩ, R
FS
= 100kΩ, C1 = 4.7µF, C2 =
10µF; speaker load resistors (R
L
) are terminated between OUT+ and OUT-, unless otherwise stated; T
A
= T
MIN
to T
MAX
, unless other-
wise noted. Typical values are at T
A
= +25°C.) (Notes 1, 2)
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.
(Voltages with respect to GND.)
V
CC
, CPV
DD
.............................................................-0.3V to +6V
PV
SS
, SV
SS
...............................................................-6V to +0.3V
CPGND..................................................................-0.3V to +0.3V
OUT+, OUT-...................................(SV
SS
- 0.3V) to (V
CC
+ 0.3V)
IN+, IN-, FB+, FB- ......................................-0.3V to (V
CC
+ 0.3V)
C1N..........................................(PV
SS
- 0.3V) to (CPGND + 0.3V)
C1P.......................................(CPGND - 0.3V) to (CPV
DD
+ 0.3V)
FS, SHDN ...................................................-0.3V to (V
CC
+ 0.3V)
Continuous Current Into/Out of
OUT+, OUT-, V
CC
, GND, SV
SS
.....................................800mA
CPV
DD
, CPGND, C1P, C1N, PV
SS
.................................800mA
Any Other Pin ..................................................................20mA
Duration of OUT+, OUT- Short Circuit to
V
CC
, GND, CPV
DD
, CPGND ..................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
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
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
Supply Voltage Range
V
CC
Inferred from PSRR test
2.7
5.5
V
Quiescent Current
I
CC
8
12
mA
Chip Power Dissipation
P
DISS
V
OUT
= 2.8V
RMS
, f = 1kHz, R
L
= 8
Ω
0.9
W
Shutdown Current
I
SHDN
SHDN = GND
0.3
5
µA
Turn-On Time
t
ON
Time from shutdown or power-on to full
operation
50
ms
Input DC Bias Voltage
V
BIAS
IN_ inputs
1.1
1.24
1.4
V
I
LOAD
= 0mA (slow mode)
55
83
110
Charge-Pump Oscillator
Frequency (Slow Mode)
f
OSC
I
LOAD
> 100mA (normal mode)
230
330
430
kHz
Maximum Capacitive Load
C
L
200
pF
V
IH
1.4
SHDN Input Threshold (Note 3)
V
IL
0.4
V
SHDN Input Leakage Current
±1
µA
SPEAKER AMPLIFIER
T
A
= +25°C
±3
±15
Output Offset Voltage
V
OS
T
MIN
≤ T
A
≤ T
MAX
±20
mV
Common-Mode Rejection Ratio
CMRR
f
IN
= 1kHz (Note 4)
68
dB
Click-and-Pop Level
V
CP
Peak voltage into/out of shutdown
A-weighted, 32 samples per second
(Notes 5, 6)
-52
dBV