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MAX98500 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Boosted 2.2W Class D Amplifier - Maxim Integrated Products

भाग संख्या MAX98500
समारोह Boosted 2.2W Class D Amplifier
मैन्युफैक्चरर्स Maxim Integrated Products 
लोगो Maxim Integrated Products लोगो 
पूर्व दर्शन
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<?=MAX98500?> डेटा पत्रक पीडीएफ

MAX98500 pdf
www.DataSheet4U.com
Boosted 2.2W Class D Amplifier
with Automatic Level Control
ABSOLUTE MAXIMUM RATINGS
VBAT to AGND.........................................................-0.3V to +6V
VCCOUT to BSTPGND, AGND.................................-0.3V to +6V
PVDD to SPKPGND.................................................-0.3V to +6V
BSTPGND, SPKPGND to AGND.......................... -0.3V to +0.3V
GAIN to AGND......................................... -0.3V to (VBAT + 0.3V)
SDBST, SDSPK to AGND...................................... -0.3V to VBAT
All Other Pins (excluding LX) to AGND...................-0.3V to +6V
Current Into/Out of LX, VCCOUT, BSTPGND...................... Q3.9A
Continuous Current Into/Out of SPK_, PVDD,
SPKPGND.................................................................. Q800mA
Continuous Input Current (all other pins)........................ Q20mA
Duration of Short Circuit Between VCCOUT
and BSTPGND...................................................... Continuous
Duration of SPK_ Short Circuit to PVDD or
SPKPGND. ............................................................. Continuous
Duration of Short Circuit Between SPKP
and SPKN...............................................................Continuous
Continuous Power Dissipation, Multilayer Board (TA = +70NC)
WLP (derate 20.4mW/NC above +70NC)........................1.33W
θJA (Note 1).................................................................49NC/W
Junction Temperature......................................................+150NC
Operating Temperature Range........................... -40NC to +85NC
Storage Temperature Range............................ -65NC to +150NC
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
(VBAT = 3.6V, RL = J between SPKP and SPKN, AV = +6dB, CIN = 1FF, 20Hz to 22kHz AC measurement bandwidth, TA = TMIN to
TMAX, unless otherwise noted. Typical values are at TA = +25NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Power-Supply Rejection Ratio
(Note 3)
PSRR TA = +25NC, VBAT = 2.5V to 5.5V
95 dB
Quiescent Current
Combined Efficiency
Shutdown Current
Turn-On Time
BOOST CONVERTER
IVBAT
IPVDD
E
ISHDN
tON
TA = +25NC, SDSPK = SDBST = VBAT
TA = +25NC, VSDSPK = 0V, SDBST = VBAT
TA = +25NC, PVDD = 5.55V, SDSPK =
SDBST = VBAT
POUT = 1.7W, f = 1kHz, ZSPK = 8I + 68FH
VSDSPK = VSDBST = 0V, TA = +25NC
Time from power-on to full operation
3.05
0.09
1.7
87
0.04
10
0.15
2.7
1.5
12
mA
%
FA
ms
Battery Supply Voltage Range
Soft-Start Interval
Undervoltage Lockout
Boost Converter Output Voltage
Output Current Limit
Input Current Limit
nMOS Current Limit
pMOS Turn-Off Current Limit
VBAT
tON
UVLO
VVCCOUT
IMAX
ILIMIT
ILX,MAX
VBAT falling
ILOAD = 0mA
VBAT R = 3.6V
Startup, VCCOUT = 0V
2.5 5.5 V
5.6 ms
2.1 2.2 2.3
V
5.45 5.5 5.65
V
1.5 A
0.3 0.5
A
3.3 A
10 mA
Switching Frequency
Efficiency
Startup Short-Circuit Time
fS
E 0.1A P IOUT P 0.75A
Converter latch off
1.8 2.0 2.2 MHz
93 %
50 ms
Thermal Shutdown
LX Leakage Current
VLX = 0V or 5.5V,
VCCOUT = 5.5V
TA = +25NC
-40NC P TA P +85NC
165
-1.0 +0.1 +1.0
0.1
NC
FA
2   _______________________________________________________________________________________

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