Datasheet

MAX9759
3.2W, High-Efficiency, Low-EMI,
Filterless, Class D Audio Amplifier
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
V
DD
to GND..............................................................................6V
PV
DD
to PGND .........................................................................6V
GND to PGND .......................................................-0.3V to +0.3V
All Other Pins to GND.................................-0.3V to (V
DD
+ 0.3V)
Continuous Current Into/Out of PV
DD
/PGND/OUT+/OUT-....1.7A
Duration of OUT+ or OUT- Short Circuit to
V
DD
/GND/PV
DD
/PGND............................................Continuous
Duration of Short Circuit Between OUT+ and OUT- ..Continuous
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TQFN (derate 16.9mW/°C above +70°C) .....1349.1mW
Junction Temperature......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ESD Protection (+IBM).........................................................±2kV
ELECTRICAL CHARACTERISTICS (V
DD
= 5.0V)
(V
DD
= PV
DD
= SHDN = MUTE = 5V, GND = PGND = 0V, SYNC = 0V (FFM). Gain = 12dB (G1 = 0, G2 = 1). Speaker load resistor
(R
L
) connected between OUT+ and OUT-, unless otherwise noted, R
L
= ∞, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical val-
ues are at T
A
= +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
Supply Voltage Range V
DD
Inferred from PSRR test 3.0 5.5 V
Quiescent Current I
DD
No load 8.4 12 mA
Mute Current I
MUTE
V
MUTE
= 0V 5.5 8 mA
Shutdown Current
I
DD
(
SHDN
)
V
SHDN
= 0V 0.1 10 µA
Shutdown to Full Operation t
SON
40 ms
Mute to Full Operation t
MUTE
40 ms
Common-Mode Rejection Ratio CMRR f = 1kHz, input referred, V
IN
= 200mV
P-P
67 dB
Input DC Bias Voltage V
CM
1.3 1.5 1.7 V
Gain = +24dB 14 20 26
Gain = +18dB 25 36 47
Gain = +12dB 40 60 80
Input Resistance R
IN
Gain = +6dB 60 90 120
kΩ
G1 = 0, G2 = 0
+22 +24 +26
G1 = 1, G2 = 0
+16 +18 +20
G1 = 0, G2 = 1
+10 +12 +14
Voltage Gain A
V
G1 = 1, G2 = 1 +4 +6 +8
dB
Output Offset Voltage V
OS
T
A
= +25°C
±10
±50 mV
V
DD
= 4.5V to 5.5V 62 90
f
RIPPLE
= 217Hz 79
f
RIPPLE
= 1kHz 81
Power-Supply Rejection Ratio
(Note 3)
PSRR
200mV
P-P
ripple
f
RIPPLE
= 20kHz 70
dB