MAX9752 datasheet(2/29 Pages) MAXIM

2 / 29 page

2.2W, Low-EMI, Stereo, Class D Power Amplifiers

with DirectDrive Headphone Amplifiers

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = PVDD = HPVDD = CPVDD = +5.0V, GND = PGND = HPGND = 0V, VSHDN = VDD, CPVSS = VSS, CBIAS = 1µF,

CCPVSS = 1µF, C1 = 1µF, speaker impedance = 8

Ω connected between OUT_+ and OUT_-, headphone load is terminated to GND;

MAX9752: GAIN1 = GAIN2 = 0, VVOL = 0V; MAX9753: GAIN = 0, VA/B = 0V; MAX9754: GAIN = 0; TA = TMIN to TMAX, unless otherwise

noted. Typical values are at TA = +25°C.) (Notes 1, 2)

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.

VDD, PVDD, HPVDD, CPVDD to GND ....................... -0.3V to +6V

GND to PGND or CPGND .................................... -0.3V to +0.3V

CPVSS or VSS to PGND ........................................ -6.0V to +0.3V

C1N to PGND .........................................(CPVSS - 0.3V) to +0.3V

C1P to PGND........................................ -0.3V to (CPVDD + 0.3V)

HP_ to PGND......................... (HPVSS - 0.3V) to (HPVDD + 0.3V)

HP_ to PGND.............................................................. -3V to +3V

Any Other Pin to PGND ............................. -0.3V to (VDD + 0.3V)

Duration of OUT_ Short Circuit to PGND or PVDD.........Continuous

Duration of OUT_+ Short Circuit to OUT_- .................Continuous

Duration of HP_ Short Circuit to PGND ......................Continuous

Continuous Current Into/Out of PVDD, OUT_, PGND ...........1.7A

Continuous Current Into/Out of CPVDD, C1N, CPGND,

C1P, CPVSS, VSS, HPVDD, HP_ ......................................0.85A

Continuous Input Current (all other pins) ........................ ±20mA

Continuous Power Dissipation (TA = +70°C)

28-Pin TQFN (derate 21.3mW/°C above +70°C) .......1702mW

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Junction Temperature ......................................................+150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

GENERAL

Supply Voltage Range,

Speaker Amplifier

VDD, PVDD Inferred from PSRR test

4.5

5.5

Supply Voltage Range,

Headphone Amplifier

HPVDD

Inferred from PSRR test

3.0

5.5

Speaker mode, no load

Quiescent Current

IDD

Headphone mode, no load

7.2

9.5

Shutdown Supply Current

I SHDN

V SHDN = 0V

0.2

µA

Gain Switching Time

tSWG

3µs

Mux Switching Time

tSWM

MAX9753 only

µs

MAX9752

Input Resistance

RIN

MAX9753/MAX9754

3.5

6.6

10.0

Turn-On Time

tON

CLASS D SPEAKER AMPLIFIERS (HPS = GND)

TA = +25°C

±9.6

±38.8

MAX9752A,

MAX9752B,

MAX9753, MAX9754

TA = TMIN to TMAX

±55

TA = +25°C

±7

±40

Output Offset Voltage

OUT_+ to OUT_-

VOS

MAX9752C

TA = TMIN to TMAX

±60

PVDD or VDD = 4.5V to 5.5V, TA = +25°C

f = 1kHz, VRIPPLE = 100mVP-P

Power-Supply Rejection Ratio

(Note 3)

PSRR

f = 10kHz, VRIPPLE = 100mVP-P

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