MAX9754ETI+ Maxim Integrated Products, MAX9754ETI+ Datasheet - Page 7
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MAX9754ETI+
Manufacturer Part Number
MAX9754ETI+
Description
IC AMP AUDIO PWR 2.2W D 28TQFN
Manufacturer
Maxim Integrated Products
Series
DirectDrive™r
Type
Class Dr
Datasheet
1.MAX9753ETI.pdf
(29 pages)
Specifications of MAX9754ETI+
Output Type
2-Channel (Stereo) with Stereo Headphones
Max Output Power X Channels @ Load
2.2W x 2 @ 4 Ohm; 62mW x 2 @ 16 Ohm
Voltage - Supply
4.5 V ~ 5.5 V
Features
Depop, Short-Circuit and Thermal Protection, Shutdown
Mounting Type
Surface Mount
Package / Case
28-TQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
(V
C
MAX9752: GAIN1 = GAIN2 = 0, V
CPVSS
DD
2.2W, Low-EMI, Stereo, Class D Power Amplifiers
= PV
= 1µF, C1 = 1µF, speaker impedance = 8Ω connected between OUT_+ and OUT_-, headphone load is terminated to GND;
(1kHz, 2V
DD
(NO AUDIO)
= HPV
SHDN
OUT
OUT
P-P
2.0
1.5
1.0
0.5
5
4
3
2
1
0
)
0
_______________________________________________________________________________________
POWER DISSIPATION vs. OUTPUT POWER
1
0
OUTPUT POWER vs. LOAD RESISTANCE
DD
THD+N = 1%
= CPV
TURN-ON RESPONSE
with DirectDrive Headphone Amplifiers
1
LOAD RESISTANCE (Ω)
(SPEAKER MODE)
(SPEAKER MODE)
(SPEAKER MODE)
R
OUTPUT POWER (W)
VOL
THD+N = 10%
L
= 4Ω
DD
4ms/div
= 0V; MAX9753: GAIN = 0, V
10
= 5.0V, GND = PGND = HPGND = 0V, V
2
R
L
= 8Ω
MAX9752/53/54 toc14
3
Typical Operating Characteristics (continued)
100
4
5V/div
100mV/div
500mV/div
A/B
= 0V; MAX9754: GAIN = 0; T
(1kHz, 2V
(NO AUDIO)
SHDN
OUT
OUT
P-P
100
90
80
70
60
50
40
30
20
10
)
4
3
2
1
0
0
1
0
OUTPUT POWER vs. LOAD RESISTANCE
R
THD+N = 1%
L
EFFICIENCY vs. OUTPUT POWER
= 8Ω||68μH
SHDN
TURN-OFF RESPONSE
R
LOAD RESISTANCE (Ω)
(SPEAKER MODE)
(SPEAKER MODE)
L
OUTPUT POWER (W)
= 4Ω||33μH
2
= V
2ms/div
DD
10
THD+N = 10%
A
= +25°C, unless otherwise noted.)
, CPV
4
MAX9752/53/54 toc15
SS
= V
100
6
SS
5V/div
100mV/div
500mV/div
, C
BIAS
= 1µF,
7