TAS5152

SLES127A − FEBRUARY 2005 − REVISED NOVEMBER 2005

www.ti.com

2

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.

GENERAL INFORMATION

The TAS5152 is available in a 36-pin PSOP3 (DKD)

thermally enhanced package. The package contains a

heat slug that is located on the top side of the device for

convenient thermal coupling to the heatsink.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

GVDD_B

OTW

SD

PWM_A

RESET_AB

PWM_B

OC_ADJ

GND

AGND

VREG

M3

M2

M1

PWM_C

RESET_CD

PWM_D

VDD

GVDD_C

GVDD_A

BST_A

PVDD_A

OUT_A

GND_A

GND_B

OUT_B

PVDD_B

BST_B

BST_C

PVDD_C

OUT_C

GND_C

GND_D

OUT_D

PVDD_D

BST_D

GVDD_D

DKD PACKAGE

(TOP VIEW)

MODE Selection Pins

MODE PINS

PWM INPUT

OUTPUT

CONFIGU-

PROTECTION

SCHEME

M3

M2

M1

CONFIGU-

RATION

SCHEME

0

0

0

2N (1) AD/BD

modulation

2 channels

BTL output

BTL mode (2)

0

0

1

Reserved

0

1

0

1N (1) AD

modulation

2 channels

BTL output

BTL mode (2)

0

1

1

1N (1) AD

modulation

1 channel

PBTL output

PBTL mode.

Only PWM_A

input is used.

1

0

0

1N (1) AD

modulation

4 channels

SE output

Protection works

similarly to BTL

mode (2). Only

difference in SE

mode is that

OUT_x is Hi-Z

instead of a

pulldown through

internal pulldown

resistor.

1

0

1

1

1

0

Reserved

1

1

1

Reserved

(1) The 1N and 2N naming convention is used to indicate the required

number of PWM lines to the power stage per channel in a specific

mode.

(2) An overload protection (OLP) occurring on A or B causes both

channels to shut down. An OLP on C or D works similarly. Global

errors like overtemperature error (OTE), undervoltage protection

(UVP) and power-on reset (POR) affect all channels.

PARAMETER

TAS5152DKD

RθJC (°C/W)—2 BTL or 4 SE

channels (8 transistors)

1.28

RθJC 〈°C/W)—1 BTL or 2 SE

channel(s) (4 transistors)

2.56

RθJC (°C/W)—(1 transistor)

8.6

Pad area (2)

80 mm2

(1) JC is junction-to-case, CH is case-to-heatsink.

(2) RθCH is an important consideration. Assume a 2-mil thickness of

typical thermal grease between the pad area and the heatsink. The

RθCH with this condition is 0.8°C/W for the DKD package and

1.8

°C/W for the DDV package.