Rainbow-electronics MAX9717 Manual de usuario descargar pdf (Pagina 2)

MAX9716/MAX9717

Low-Cost, Mono, 1.4W BTL Audio Power

Amplifiers

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—5V Supply

= 5V, GND = 0, SHDN = V

, T

= +25°C. C

BIAS

= 1µF, R

= R

= 20kΩ (MAX9716/MAX9717A), IN+ = BIAS (MAX9716),

BTL/SE = GND (MAX9717_), R

= ∞ connected between OUT+ and OUT-. Typical values are at T

= +25°C.) (Note 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.

Supply Voltage (V

to GND)..................................-0.3V to +6V

Any Other Pin to GND ...............................-0.3V to (V

+ 0.3V)

IN_, BIAS, SHDN, BTL/SE Continuous Current...................20mA

OUT_ Short-Circuit Duration to GND or V

(Note 1)...Continuous

Continuous Power Dissipation (T

= +70°C)

8-Pin TDFN (derate 24.4mW/°C above +70°C) .........1951mW

8-Pin µMAX (derate 10.3mW/°C above +70°C)...........825mW

9-Bump UCSP (derate 5.2mW/°C above 70°C)...........412mW

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

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

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

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

Bump Temperature (soldering)........................................+235°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage V

Inferred by PSRR test 2.7 5.5 V

Quiescent Supply Current I

IN-

= V

IN+

= V

BIAS

(Note 3),

= -40°C to +85°C

4.3 8 mA

Shutdown Supply Current I

SHDN

SHDN = GND

0.01

1µA

1.2

SHDN Threshold

0.4

0.9 x

BTL/SE Threshold

0.7 x

Common-Mode Bias Voltage V

BIAS

(Note 4)

- 6%

+ 6%

Output Offset Voltage V

IN-

= V

OUT+

, V

IN+

= V

BIAS

(Note 5) ±7

±15

= 2.7V to 5.5V DC, V

BIAS

= 1.5V 60 80

f = 217Hz 61

Power-Supply Rejection Ratio PSRR

IN+

= V

BIAS

RIPPLE

= 200mV

P-P

= 8Ω (Note 6)

f = 1kHz 73

= 8Ω, THD+N = 1%, f

= 1kHz (Note 7)

0.8 1.1

= 4Ω, THD+N = 1%, f

= 1kHz (Note 7)

1.4

Output Power P

OUT

= 16Ω, BTL/SE = V

(single-ended

mode), THD+N = 1%, f

= 1kHz

0.155

Total Harmonic Distortion Plus

Noise

THD+N

= 6dB, R

= 8Ω, f

= 1kHz,

OUT

= 0.5W (Note 8)

0.024

Output Noise Density e

= 10kHz

106

nV/√Hz

Signal-to-Noise Ratio SNR THD+N = 1%

105

1 2 3 4 5 6 7 ... 18 19

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Rainbow-electronics MAX9717 Manual de usuario Pagina 2

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