MAX98302 查看數據表（PDF） - Maxim Integrated
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MAX98302 Datasheet PDF : 13 Pages
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Stereo 2.4W Class D Amplifier
ABSOLUTE MAXIMUM RATINGS
PVDD to PGND.......................................................... -0.3V to 6V
All Other Pins to PGND...........................-0.3V to (PVDD + 0.3V)
Continuous Current into PVDD, PGND,
OUTL_, OUTR_........................................................... Q600mA
Continuous Input Current (all other pins)........................ Q20mA
Duration of Short Circuit Between OUTL_,
OUTR_ to PVDD or PGND......................................Continuous
Duration of Short Circuit Between OUTL+ to OUTL-,
OUTR+ to OUTR- ..................................................Continuous
Continuous Power Dissipation for Single Layer Board (TA = +70NC)
14-Pin TDFN (derate 18.5mW/NC above +70NC).....1481.5mW
14-Pin TDFN BJA (Note 1).............................................54NC/W
14-Pin TDFN BJC (Note 1)..............................................8NC/W
Continuous Power Dissipation for Multilayer Board (TA = +70NC)
14-Pin TDFN (derate 24.4mW/NC above +70NC).....1951.2mW
14-Pin TDFN BJA (Note 1).............................................41NC/W
14-Pin TDFN BJC (Note 1)..............................................8NC/W
Junction Temperature......................................................+150NC
Operating Temperature Range........................... -40NC to +85NC
Storage Temperature Range............................ -65NC to +150NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow).......................................+260NC
Note 1: 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.maxim-ic.com/thermal-tutorial.
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.
ELECTRICAL CHARACTERISTICS
(VPVDD = VSHDN = 5.0V, VPGND = 0V, AV = 12dB (GAIN = PVDD), RL = J, RL connected between OUT_+ to OUT_-, 20Hz to 22kHz
AC measurement bandwidth, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25NC.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
AMPLIFIER CHARACTERISTICS
Supply Voltage Range
VPVDD Inferred from PSRR test
2.6
5.5
V
Undervoltage Lockout
UVLO
2.5
V
Quiescent Supply Current
IDD
VPVDD = 5.0V, TA = +25NC
VPVDD = 3.7V
2.25 3.4
mA
1.65
Shutdown Supply Current
ISHDN VSHDN = 0V, TA = +25NC
0.1
10
FA
Turn-On Time
tON
3.7
10
ms
Bias Voltage
VBIAS
1.3
V
Connect GAIN to PGND
17.5
18
18.5
Voltage Gain
Connect GAIN to PGND through 100kI ±5% 14.5
15
15.5
resistor
AV
Connect GAIN to PVDD
11.5
12
12.5
dB
Input Resistance
Output Offset Voltage
Connect GAIN to PVDD through 100kI ±5% 8.5
9
9.5
resistor
GAIN unconnected
5.5
6
6.5
AV = 18dB
14
20
AV = 15dB
14
20
RIN
AV = 12dB
14
20
kI
AV = 9dB
19
28
AV = 6dB
26
40
VOS TA = +25NC (Note 4)
±4
±20
mV
2 _______________________________________________________________________________________
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