Low-Cost, Mono/Stereo,

1.4W Differential Audio Power Amplifiers

_______________________________________________________________________________________

9

SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

60

35

10

-15

1

2

3

4

5

6

0

-40

85

SHUTDOWN CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

60

35

10

-15

-0.02

-0.01

0

0.01

0.02

0.03

-0.03

-40

85

TURN-ON TIME

vs. DC BIAS BYPASS CAPACITOR

µF)

0.80

0.60

0.20

0.40

10

20

30

40

50

60

70

80

0

0

1.00

TO -3dB OF FINAL VALUE

Typical Operating Characteristics (continued)

Pin Description

PIN

MAX9718

MAX9719

TDFN/

µMAX

UCSP

TQFN

UCSP

TSSOP

NAME

FUNCTION

1C2

——

—

SHDN

Shutdown Input. The polarity of SHDN is dependent on the state

of SHDM.

——

9B3

11

SHDN

Shutdown Input. Active-low shutdown input.

2C1

——

—

IN-

Inverting Input

3B2

——

—

SHDM

Shutdown-Mode Polarity Input. SHDM controls the polarity of

SHDN. Connect SHDM high for an active-high SHDN input.

Connect SHDM low for an active-low SHDN input (see Table 1).

4A1

——

—

IN+

Noninverting Input

5

A2

5

B2

7

BIAS

DC Bias Bypass

6A3

——

—

OUT-

Bridge Amplifier Negative Output

7

B3

1, 6, 11

A2,

C2, C4

3, 8,13

GND

Ground

8

—

13

—

15

N.C.

No Connection. Not internally connected.

9

B1

8, 14

A4, D3

16, 10

VCC

Power Supply

10

C3

——

—

OUT+

Bridge Amplifier Positive Output

——

2

C1

4

INR+

Right-Channel Noninverting Input

——

3

B1

5

INL-

Left-Channel Inverting Input

——

4

A1

6

INL+

Left-Channel Noninverting Input

——

7

A3

9

OUTL+

Left-Channel Bridge Amplifier Positive Output

——

10

B4

12

OUTL-

Left-Channel Bridge Amplifier Negative Output