max9738 Maxim Integrated Products, Inc., max9738 Datasheet - Page 6

• Manufacturer Part Number: max9738
• Description: 16vp-p Class G Amplifier With Inverting Boost Converter
• Manufacturer: Maxim Integrated Products, Inc.

1000
16V
Inverting Boost Converter
(V
C2 = 10μF, C3 = 0.1μF, C4 = 0.1μF, T
900
800
700
600
500
400
300
200
100
6
6.6
6.4
6.2
6.0
5.8
5.6
5.4
0
DD
2.5
0
_______________________________________________________________________________________
PACKAGE DISSIPATION LIMIT
= V
CLASS G OUTPUT WAVEFORM
MAXIMUM OUTPUT VOLTAGE
3.0
BAT
1
P-P
POWER DISSIPATION
vs. OUTPUT VOLTAGE
OUTPUT VOLTAGE (V
= SHDN =+3.6V, GND = 0V, R
vs. V
3.5
V
BAT
2
BAT
200μs/div
SUPPLY (V)
4.0
Class G Amplifier with
SUPPLY
V
DD
3
= 2.7V, f
4.5
RMS
1% THD+N
1% THD+N
)
IN
4
MAX9738 toc16
5.0
= 1kHz
5.5
5
A
OUT+ - OUT-
10V/div
OUT+
5V/div
OUT-
5V/div
= +25°C, Typical Application Circuit .)
ISET
1000
900
800
700
600
500
400
300
200
100
0
V
= 100kΩ, R
SS
0
Typical Operating Characteristics (continued)
RIPPLE WITH 1kHz OUTPUT WAVEFORM
PACKAGE DISSIPATION LIMIT
1
STARTUP WAVEFORM
POWER DISSIPATION
vs. OUTPUT VOLTAGE
OUTPUT VOLTAGE (V
IN+
2
200μs/div
= R
10ms/div
3
IN-
V
DD
= 10kΩ, R
= 3.6V, f
4
RMS
1% THD+N
)
IN
MAX9738 toc14
MAX9738 toc17
5
= 1kHz
FB+
6
OUT+ - OUT-
500mV/div
V
500mV/div
OUT+ - OUT-
10V/div
= R
SHDN
5V/div
SS
FB-
= 10kΩ, C
1000
900
800
700
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
0
0
0
0
L
PACKAGE DISSIPATION LIMIT
= 1.6μF, R
50
1
SHUTDOWN WAVEFORM
vs. V
100 150
POWER DISSIPATION
vs. OUTPUT VOLTAGE
OUTPUT VOLTAGE (V
V
SS
2
LOAD CURRENT (mA)
SS
EFFICIENCY
L
= 20Ω, C1 = 10μF,
LOAD CURRENT
10ms/div
V
DC LOAD ON V
INPUT AC-GROUNDED
NO LOAD ON AMPLIFIER
200 250
DD
3
V
= 3.6V
DD
= 4.2V, f
4
RMS
300
)
SS
IN
MAX9738 toc15
ONLY
5
= 1kHz
350
400
6
SHDN
5V/div
OUT+ - OUT-
500mV/div