1

+INR

2

3

4

–INR

OUTR

GND

5

6

7

8

Mute

VSS

CN

9

10

11

12

13

14

CP

VDD

GND

OUTL

–INL

+INL

Charge Pump

UVP

External

Under-

Voltage

Detector

TPA6138A2

SLOS704A

– JANUARY 2011 – REVISED MAY 2011

www.ti.com

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

TERMINAL ASSIGNMENT

The TPA6138A2 is available in the TSSOP package:

•

14-pin TSSOP package (PW)

PW PACKAGE

(TOP VIEW)

PIN FUNCTIONS

PIN

DESCRIPTION

NAME

NO.

CN

7

I/O

Charge-pump flying capacitor negative connection

CP

8

I/O

Charge-pump flying capacitor positive connection

GND

4, 10

P

Ground

–INL

13

I

Left-channel OPAMP negative input

+INL

14

I

Left-channel OPAMP positive input

–INR

2

I

Right-channel OPAMP negative input

+INR

1

I

Right-channel OPAMP positive input

Mute

5

I

Mute, active-low

OUTL

12

O

Left-channel OPAMP output

OUTR

3

O

Right-channel OPAMP output

UVP

11

I

Undervoltage protection; internal pull-up, unconnected if UVP function is unused.

VDD

9

P

Positive supply

VSS

6

P

Supply voltage

(1)

I = input, O = output, P = power

2

Copyright

© 2011, Texas Instruments Incorporated