MAX4295 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX4295 Datasheet PDF : 18 Pages
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Mono/Stereo 2W Switch-Mode (Class-D)
Audio Power Amplifiers
ABSOLUTE MAXIMUM RATINGS
VCC, PVCC to GND or PGND....................................-0.3V to +6V
PGND to GND.....................................................................±0.3V
PVCC to VCC .......................................................................±0.3V
VCM, SS, AOUT_, IN_ ................................-0.3V to (VCC + 0.3V)
SHDN, FS1, FS2 .......................................................-0.3V to +6V
OUT_ _ .....................................................-0.3V to (PVCC + 0.3V)
Op Amp Output Short-Circuit
Duration (AOUT_) .......Indefinite Short Circuit to Either Supply
H-Bridge Short-Circuit
Duration (OUT_ _) .............Continuous Short Circuit to PGND,
PVCC or between OUT+_ & OUT-_
Continuous Power Dissipation (TA = +70°C)
16-Pin QSOP (derate 8.30mW/°C above +70°C)........667mW
24-Pin SSOP (derate 9.50mW/°C above +70°C) ........762mW
16-Pin Narrow SO
(derate 9.52mW/°C above +70°C) ..........................696mW
24-Pin Wide SO
(derate 11.76mW/°C above +70°C) ........................941mW
Operating Temperature Range
MAX4295E__/MAX4297E__ ............................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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
(VCC = PVCC = +5V, SHDN = VCC, FS1 = GND, FS2 = VCC (fOSC = 250kHz), input amplifier gain = -1V/V, TA = TMIN to TMAX, unless
otherwise noted. Typical values are TA = +25°C.) (Note 1)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
GENERAL
Supply Voltage Range
(Note 2)
2.7
5.5
V
Quiescent Supply Current
Output load not
connected
MAX4295
MAX4297
2.8
4
mA
4.6
8
Shutdown Supply Current
SHDN = GND
MAX4295
MAX4297
1.5
8
µA
2.5
15
Voltage at VCM Pin
0.285 × 0.3 × 0.315 × V
VCC
VCC
VCC
FS1 = GND, FS2 = GND
105
125
145
PWM Frequency
FS1 = GND, FS2 = VCC
FS1 = VCC, FS2 = GND
FS1 = VCC, FS2 = VCC
210
250
290
kHz
420
500
580
840 1000 1160
PWM Frequency Change with
VCC
Duty Cycle
Duty Cycle Change with VCC
Switch On-Resistance
(each power device)
H-Bridge Output Leakage
VCC = 2.7V to 5.5V
VIN = 0.06 × VCC
VIN = 0.30 × VCC
VIN = 0.54 × VCC
VIN = 0.3 × VCC, VCC = 2.7V to 5.5V
IOUT = 150mA
VCC = 5V
VCC = 2.7V
SHDN = GND
±1
±3 kHz/V
10.2
12
13.8
49.2
50
50.8
%
86.2
88
89.8
±0.02 ±0.15 %/V
0.25
0.5
Ω
0.35
1.0
0
±5
µA
H-Bridge Current Limit
1
A
Soft-Start Capacitor Charging
Current
VSS = 0
0.75 1.35 1.95 µA
Undervoltage Lockout
1.8
2.2
2.6
V
Thermal Shutdown Trip Point
145
°C
2 _______________________________________________________________________________________
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