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MAX9730EWP+TG45

P1-P3P4-P6P7-P9P10-P12
MAX9730
2.4W, Single-Supply, Class G Power Amplifier
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V
CC
= V
CPVDD
= V
SHDN
= 3.6V, V
GND
= V
CPGND
= 0V, R
IN+
= R
IN-
= 10kΩ, R
FB+
= R
FB-
= 10kΩ, R
FS
= 100kΩ, C1 = 4.7µF, C2 =
10µF, R
L
= 8Ω; speaker load resistors (R
L
) are terminated between OUT+ and OUT-, unless otherwise stated; T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 1, 2)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9730 toc01
FREQUENCY (kHz)
THD+N (%)
1010.1
0.01
0.1
1
10
0.001
0.01 100
V
CC
= 3V
P
OUT
= 0.69W
P
OUT
= 0.33W
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9730 toc02
FREQUENCY (kHz)
THD+N (%)
1010.1
0.01
0.1
1
10
0.001
0.01 100
V
CC
= 3.6V
P
OUT
= 0.37W
P
OUT
= 0.93W
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9730 toc03
FREQUENCY (kHz)
THD+N (%)
1010.1
0.01
0.1
1
10
0.001
0.01 100
V
CC
= 5V
P
OUT
= 0.83W
P
OUT
= 2.08W
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9730 toc04
OUTPUT POWER (W)
THD+N (%)
1.00.5
0.01
0.1
1
10
0.001
01.5
V
CC
= 3V
f
IN
= 1kHz
f
IN
= 10kHz
f
IN
= 20Hz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9730 toc05
OUTPUT POWER (W)
THD+N (%)
1.51.00.5
0.01
0.1
1
10
0.001
02.0
V
CC
= 3.6V
f
IN
= 1kHz
f
IN
= 10kHz
f
IN
= 20Hz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9730 toc06
OUTPUT POWER (W)
THD+N (%)
3.02.52.01.51.00.5
0.01
0.1
1
10
0.001
0 3.5
f
IN
= 20Hz
f
IN
= 10kHz
f
IN
= 1kHz
V
CC
= 5V
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9730 toc07
FREQUENCY (kHz)
PSRR (dB)
1010.1
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
0.01 100
V
RIPPLE
= 200mV
P-P
POWER EFFICIENCY
vs. OUTPUT POWER
MAX9730 toc08
OUTPUT POWER (W)
EFFICIENCY (%)
0.8 1.00.60.40.2
10
20
30
40
50
60
70
0
01.2
V
CC
= 3V
f
IN
= 1kHz
POWER EFFICIENCY
vs. OUTPUT POWER
MAX9730 toc09
OUTPUT POWER (W)
EFFICIENCY (%)
1.00.5
10
20
30
40
50
60
70
0
0 1.5
V
CC
= 3.6V
f
IN
= 1kHz
Typical Operating Characteristics (continued)
(V
CC
= V
CPVDD
= V
SHDN
= 3.6V, V
GND
= V
CPGND
= 0V, R
IN+
= R
IN-
= 10kΩ, R
FB+
= R
FB-
= 10kΩ, R
FS
= 100kΩ, C1 = 4.7µF, C2 =
10µF, R
L
= 8Ω; speaker load resistors (R
L
) are terminated between OUT+ and OUT-, unless otherwise stated; T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 1, 2)
MAX9730
2.4W, Single-Supply, Class G Power Amplifier
_______________________________________________________________________________________
5
POWER EFFICIENCY
vs. OUTPUT POWER
MAX9730 toc10
OUTPUT POWER (W)
EFFICIENCY (%)
21
10
20
30
40
50
60
70
0
03
V
CC
= 5V
f
IN
= 1kHz
STARTUP WAVEFORM
MAX9730 toc11
10ms/div
SHDN
5V/div
OUT+ - OUT-
500mV/div
SHUTDOWN WAVEFORM
MAX9730 toc12
10ms/div
SHDN
5V/div
OUT+ - OUT-
500mV/div
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9730 toc13
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.55.04.54.03.53.0
2
4
6
8
10
12
0
2.5 6.0
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
MAX9730 toc14
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT (μA)
5.55.04.0 4.53.53.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
2.5 6.0
OUTPUT POWER
vs. SUPPLY VOLTAGE
MAX9730 toc15
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
5.55.03.0 3.5 4.0 4.5
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
2.5 6.0
10% THD+N
1% THD+N
f
IN
= 1kHz
OUTPUT POWER
vs. LOAD RESISTANCE
MAX9730 toc16
LOAD RESISTANCE (Ω)
OUTPUT POWER (W)
80604020
0.5
1.0
1.5
2.0
2.5
3.0
0
0100
V
CC
= 5V
V
CC
= 3.6V
f
IN
= 1kHz
P
OUT
AT 1% THD+N
MAX9730
2.4W, Single-Supply, Class G Power Amplifier
6 _______________________________________________________________________________________6 _______________________________________________________________________________________
CLASS G OUTPUT WAVEFORM
MAX9730 toc17
200μs/div
OUT+ - OUT-
10V/div
OUT-
5V/div
OUT+
5V/div
1% THD+N
FREQUENCY RESPONSE
MAX9730 toc18
FREQUENCY (Hz)
GAIN (dB)
10k1k100
2
4
6
8
10
12
14
16
18
20
0
10 100k
P
OUT
= 1W
PACKAGE THERMAL DISSIPATION AND
OUTPUT POWER vs. TEMPERATURE
MAX9730 toc19
TEMPERATURE (°C)
PACKAGE THERMAL DISSIPATION (W)
OUTPUT POWER (W)
80706050403020100-10-20-30
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
-40 90
V
CC
= 5V
OUTPUT POWER
PACKAGE THERMAL
DISSIPATION
Pin Description
Typical Operating Characteristics (continued)
(V
CC
= V
CPVDD
= V
SHDN
= 3.6V, V
GND
= V
CPGND
= 0V, R
IN+
= R
IN-
= 10kΩ, R
FB+
= R
FB-
= 10kΩ, R
FS
= 100kΩ, C1 = 4.7µF, C2 =
10µF, R
L
= 8Ω; speaker load resistors (R
L
) are terminated between OUT+ and OUT-, unless otherwise stated; T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 1, 2)
PIN
TQFN WLP
NAME FUNCTION
1B2SHDN Shutdown
2, 5, 6, 8, 11, 17,
19, 23, 25, 28
— N.C. No Connection. No internal connection.
3 A2 C1P
Charge-Pump Flying Capacitor, Positive Terminal. Connect a 4.7µF
capacitor between C1P and C1N.
4A3CPV
DD
Charge-Pump Positive Supply
7 A4 FB- Negative Amplifier Feedback
9 A5 IN- Negative Amplifier Input
10 B5 IN+ Positive Amplifier Input
12 B4 FB+ Positive Amplifier Feedback
13 C5 FS
Charge-Pump Frequency Set. Connect a 100kΩ resistor from FS to
GND to set the charge-pump switching frequency.
14, 22 D1, D5 V
CC
Supply Voltage. Bypass with a 10µF capacitor to GND.
15, 21 C2, C4 SV
SS
Amplifier Negative Power Supply. Connect to PV
SS
.
16 D4 OUT- Negative Amplifier Output
18 D3 GND Ground
20 D2 OUT+ Positive Amplifier Output
24 C1 PV
SS
Charge-Pump Output. Connect a 10µF capacitor between PV
SS
and
CPGND.
26 B1 C1N
Charge-Pump Flying Capacitor, Negative Terminal. Connect a 4.7µF
capacitor between C1N and C1P.
27 A1 CPGND Charge-Pump Ground. Connect to GND.
EP — EP Exposed Pad. Connect the TQFN EP to GND.
P1-P3P4-P6P7-P9P10-P12

MAX9730EWP+TG45

Mfr. #:
Buy MAX9730EWP+TG45
Manufacturer:
Maxim Integrated
Description:
Audio Amplifiers 2.4W Class G Power Amplifier
Lifecycle:
New from this manufacturer.
Delivery:
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