MAX4295(2005) View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX4295
(Rev.:2005)

Mono, 2W, Switch-Mode (Class D) Audio Power Amplifier

Maxim Integrated 

Mono, 2W, Switch-Mode (Class D)

Audio Power Amplifier

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 to GND .......................-0.3V to (VCC + 0.3V)

SHDN, FS1, FS2 to GND ..........................................-0.3V to +6V

OUT_ to PGND .........................................-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+ and OUT-

Continuous Power Dissipation (TA = +70°C)

16-Pin QSOP (derate 8.30mW/°C above +70°C)........667mW

16-Pin Narrow SO (derate 8.7mW/°C above +70°C)......696mW

Operating Temperature Range ...........................-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

2.8

4

mA

Shutdown Supply Current

SHDN = GND

1.5

8

µA

Voltage at VCM Pin

PWM Frequency

PWM Frequency Change with

VCC

Duty Cycle

Duty Cycle Change with VCC

Switch On-Resistance

(each power device)

H-Bridge Output Leakage

H-Bridge Current Limit

Soft-Start Capacitor Charging

Current

Undervoltage Lockout

Thermal Shutdown Trip Point

FS1 = GND, FS2 = GND

FS1 = GND, FS2 = VCC

FS1 = VCC, FS2 = GND

FS1 = VCC, FS2 = VCC

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

SHDN = GND

VCC = 5V

VCC = 2.7V

VSS = 0V

0.285 × 0.3 × 0.315 × V

VCC

VCC

VCC

105

125

145

210

250

290

kHz

420

500

580

840 1000 1160

±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

1

A

0.75 1.35 1.95 µA

1.8

2.2

2.6

V

145

°C

2 _______________________________________________________________________________________

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