MAX9750AEUI 查看數據表（PDF） - Maxim Integrated

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MAX9750AEUI

2.6W Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers

Maxim Integrated 

2.6W Stereo Audio Power Amplifiers and

DirectDrive Headphone Amplifiers

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VDD, PVDD, HPVDD, CPVDD to GND)..........+6V

GND to PGND.....................................................................±0.3V

CPVSS, C1N, VSS to GND .........................-6.0V to (GND + 0.3V)

HPOUT_ to GND ....................................................................±3V

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

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

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

Duration of HPOUT_ Short Circuit to GND,

VSS or HPVDD.........................................................Continuous

Continuous Current (PVDD, OUT_, PGND) ...........................1.7A

Continuous Current (CPVDD, C1N, C1P, CPVSS, VSS, HPVDD,

HPOUT_) .......................................................................850mA

Continuous Input Current (All Other Pins) ........................±20mA

Continuous Power Dissipation (TA = +70°C)

28-Pin Thin QFN (derate 20.8mW/°C above +70°C) ..1667mW

28-Pin TSSOP (derate 13mW/°C above +70°C) .........1039mW

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

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

(VDD = PVDD = CPVDD = HPVDD = 5V, GND = PGND = CPGND = 0V, SHDN = VDD, CBIAS = 1µF, C1 = C2 = 1µF, speaker load

terminated between OUT_+ and OUT_-, headphone load terminated between HPOUT_ and GND, GAIN1 = GAIN2 = VOL = GAIN = 0V,

TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

GENERAL

Supply Voltage Range

VDD, PVDD Inferred from PSRR test

4.5

Headphone Supply Voltage

CPVDD, Inferred from PSRR test

3

HPVDD

Quiescent Supply Current

Shutdown Supply Current

IDD

ISHDN

HPS = GND, speaker mode, RL = ∞

HPS = VDD, headphone mode, RL = ∞

SHDN = GND

Bias Voltage

VBIAS

1.7

Switching Time

tSW

Gain or input switching

Input Resistance

RIN

Amplifier inputs (Note 2)

10

Turn-On Time

tSON

SPEAKER AMPLIFIER (HPS = GND)

Output Offset Voltage

Power-Supply Rejection Ratio

(Note 3)

Measured

MAX9750A/MAX9750B/

VOS

between OUT_+

and OUT_-,

TA = +25°C

MAX9751/MAX9755

MAX9750C

PVDD or VDD =

4.5V to 5.5V

MAX9750A/MAX9750B/

MAX9750C/MAX9751

75

PSRR (TA = +25°C)

MAX9755

72

f = 1kHz, VRIPPLE = 200mVP-P

f = 10kHz, VRIPPLE = 200mVP-P

TYP

14

7

0.2

1.8

10

20

25

±1

±0.4

90

90

80

55

MAX UNITS

5.5

V

5.5

V

29

mA

13

5

µA

1.9

V

µs

30

kΩ

ms

±15

mV

±6

dB

2 _______________________________________________________________________________________

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