8-Pin SO (derate 7.8mW/°C above +70°C).................623mW
Note 1:
Continuous power dissipation must also be observed.
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.
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
Soldering Temperature (reflow) .......................................+260°C
Package Thermal Characteristics
(Note 2)
μMAX
Junction-to-Ambient Thermal Resistance (θ
JA
) .....206.3°C/W
Junction-to-Case Thermal Resistance (θ
JC
) ...............42°C/W
TDFN
Junction-to-Ambient Thermal Resistance (θ
JA
) ..........41°C/W
Junction-to-Case Thermal Resistance (θ
JC
) .................8°C/W
SO
Junction-to-Ambient Thermal Resistance (θ
JA
) .....128.4°C/W
Junction-to-Case Thermal Resistance (θ
JC
) ...............36°C/W
Note 2:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics—5V
PARAMETER
Supply Voltage Range
(V
CC
= 5V, R
L
= ∞, C
BIAS
= 1μF to GND, V
SHDN
= V
GND
, T
A
= +25°C, unless otherwise noted.) (Note 3)
SYMBOL
V
CC
CONDITIONS
Inferred from PSRR test
MAX4364
Supply Current
I
CC
(Note 4)
MAX4364, T
A
= T
MIN
to T
MAX
MAX4365
MAX4365, T
A
= T
MIN
to T
MAX
Shutdown Supply Current
I
SHDN
V
IH
SHDN Threshold
V
IL
V
SHDN
= V
CC
T
A
= +25°C
T
A
= -40°C to +85°C
(Note 5)
T
A
= +25°C
T
A
= -40°C to +85°C
(Note 5)
(Note 6)
IN- = OUT+, IN+ = BIAS (Note 7)
V
CC
= 2.7V to 5.5V
Power-Supply Rejection Ratio
PSRR
V
RIPPLE
= 200mV
P-P
,
R
L
= 8Ω
R
L
= 8Ω, THD+N = 1%,
f
IN
= 1kHz (Note 8)
DC
217Hz
1kHz
MAX4364
MAX4365
1200
800
55
V
CC
/2 -
5%
V
CC
/2
±1
75
68
58
1400
1000
mW
dB
V
CC
x
0.7
V
CC
x
0.7
V
CC
x
0.3
V
CC
x
0.3
V
CC
/2
+ 5%
±10
V
mV
0.01
5
MIN
2.7
7
TYP
MAX
5.5
13
17
8
11
4
µA
mA
UNITS
V
V
Common-Mode Bias Voltage
Output Offset Voltage
V
BIAS
V
OS
Output Power
P
OUT
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Maxim Integrated
│
2
MAX4364/MAX4365
1.4W and 1W, Ultra-Small, Audio Power
Amplifiers with Shutdown
Electrical Characteristics—5V (continued)
PARAMETER
Total Harmonic Distortion Plus
Noise
Noise
Short-Circuit Current
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
Power-Up Time
Shutdown Time
Enable Time from Shutdown
t
PU
t
SHDN
t
ENABLE
T
A
= +25°C
T
A
= +25°C
I
SC
SYMBOL
THD+N
(V
CC
= 5V, R
L
= ∞, C
BIAS
= 1μF to GND, V
SHDN
= V
GND
, T
A
= +25°C, unless otherwise noted.) (Note 3)
CONDITIONS
A
V
= -2V/V, R
L
= 8Ω,
f
IN
= 1kHz (Notes 5, 9)
MAX4364,
P
OUT
= 1W
MAX4365,
P
OUT
= 750mW
MIN
TYP
0.04
%
0.1
12
600
160
15
50
14
10
50
12
35
ms
C
BIAS
= 0.22µF, T
A
= -40°C to +85°C
(Note 5)
35
ms
µs
C
BIAS
= 0.22µF, T
A
= -40°C to +85°C
(Note 5)
µV
RMS
mA
o
C
o
C
MAX
UNITS
f
IN
= 10kHz, BW = 22Hz to 22kHz
OUT+ to OUT- (Note 10)
Electrical Characteristics—3V
PARAMETER
Supply Current
Shutdown Supply Current
Output Power
(V
CC
= 3V, R
L
= ∞, C
BIAS
= 1μF to GND, V
SHDN
= V
GND
, T
A
= +25°C, unless otherwise noted.) (Note 3)
SYMBOL
I
CC
I
SHDN
P
OUT
(Note 4)
V
SHDN
= V
CC
R
L
= 8Ω, THD+N =
1%, f
IN
= 1kHz
(Note 8)
MAX4364
MAX4365
MAX4364,
P
OUT
= 400mW
400
350
CONDITIONS
MAX4364
MAX4365
MIN
TYP
6
4.5
10
500
450
0.05
%
0.08
MAX
UNITS
mA
nA
mW
Total Harmonic Distortion Plus
Noise
Note 3:
Note 4:
Note
Note
Note
Note
Note
Note
THD + N
A
V
= -2V/V, R
L
= 8Ω,
f
IN
= 1kHz (Notes 5, 9) MAX4365,
P
OUT
= 400mW
All specifications are 100% tested at T
A
= +25°C.
Quiescent power-supply current is specified and tested with no load on the outputs. Quiescent power-supply current
depends on the offset voltage when a practical load is connected to the amplifier.
5:
Guaranteed by design, not production tested.
6:
Common-mode bias voltage is the voltage on BIAS and is nominally V
CC
/2.
7:
Maximum differential-output offset voltage is tested in a unity-gain configuration. V
OS
= V
OUT+
- V
OUT-
.
8:
Output power is specified by a combination of a functional output-current test, and characterization analysis.
9:
Measurement bandwidth for THD+N is 22Hz to 22kHz.
10:
Extended short-circuit conditions result in a pulsed output.
www.maximintegrated.com
Maxim Integrated
│
3
MAX4364/MAX4365
1.4W and 1W, Ultra-Small, Audio Power
Amplifiers with Shutdown
Typical Operating Characteristics
MAX4364
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX4364 toc01
(V
CC
= 5V, THD+N measurement bandwidth = 22Hz to 22kHz, T
A
= +25°C, unless otherwise noted.)
MAX4364
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX4364 toc02
V
CC
= 5V
A
V
= 2V/V
R
L
= 8Ω
THD+N (%)
1
V
CC
= 5V
A
V
= 4V/V
R
L
= 8Ω
THD+N (%)
1
V
CC
= 5V
A
V
= 20V/V
R
L
= 8Ω
THD+N (%)
1
0.25W
0.1
0.25W
0.5W
0.1
0.25W
0.5W
1W
0.1
1W
0.01
0.5W
0.01
1W
0
100
1k
10k
FREQUENCY (Hz)
0.01
0
100
1k
10k
0
100
1k
10k
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX4364 toc04
MAX4364 toc05
V
CC
= 3V
A
V
= 2V/V
R
L
= 8Ω
THD+N (%)
1
0.4W
0.1
0.25W
0.01
V
CC
= 3V
A
V
= 4V/V
R
L
= 8Ω
THD+N (%)
1
V
CC
= 3V
A
V
= 20V/V
R
L
= 8Ω
THD+N (%)
1
0.25W
0.1
0.25W
0.1
0.4W
0.4W
0.01
0
100
1k
10k
0.01
0
100
1k
10k
0
100
1k
10k
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
MAX4364 toc07
MAX4364 toc08
10
THD+N (%)
1
V
CC
= 5V
A
V
= 2V/V
R
L
= 8Ω
10
THD+N (%)
1
0.1
0.01
0.001
V
CC
= 5V
A
V
= 4V/V
R
L
= 8Ω
20kHz
20Hz
10
THD+N (%)
1
0.1
0.01
0.001
V
CC
= 3V
A
V
= 2V/V
R
L
= 8Ω
20kHz
0.1
0.01
1kHz
20Hz
20kHz
1kHz
1kHz
20Hz
0.001
0 40
200
520
1000
1650
2450
0 40
200
520
1000
1650
2450
0 20
190
525
1000
1700
2500
OUTPUT POWER (mW)
OUTPUT POWER (mW)
OUTPUT POWER (mW)
www.maximintegrated.com
Maxim Integrated
│
4
MAX4364 toc09
100
MAX4364
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
100
MAX4364
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
100
MAX4364
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX4364 toc06
10
MAX4364
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
10
MAX4364
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
10
MAX4364
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX4364 toc03
10
10
10
MAX4364
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX4364/MAX4365
1.4W and 1W, Ultra-Small, Audio Power
Amplifiers with Shutdown
Typical Operating Characteristics (continued)
MAX4364
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX4364 toc10
(V
CC
= 5V, THD+N measurement bandwidth = 22Hz to 22kHz, T
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