TAS5122

SLES088E – AUGUST 2003 – REVISED DECEMBER 2004

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3

Terminal Functions

TERMINAL

FUNCTION(1)

DESCRIPTION

NAME

NO.

FUNCTION(1)

DESCRIPTION

BST_A

54

P

HS bootstrap supply (BST), external capacitor to OUT_A required

BST_B

43

P

HS bootstrap supply (BST), external capacitor to OUT_B required

BST_C

42

P

HS bootstrap supply (BST), external capacitor to OUT_C required

BST_D

31

P

HS bootstrap supply (BST), external capacitor to OUT_D required

DGND

6

P

Digital I/O reference ground

DREG

13

P

Digital supply voltage regulator decoupling pin, capacitor connected to GND

DREG_RTN

17

P

Digital supply voltage regulator decoupling return pin

DVDD

4

P

I/O reference supply input (3.3 V)

GND

1, 2, 5,

7, 27, 28,

29, 36, 37,

48, 49, 56

P

Power ground (I/O reference ground – pin 22)

GREG

3, 26

P

Gate drive voltage regulator decoupling pin, capacitor to GND

GVDD

30, 55

P

Voltage supply to on−chip gate drive and digital supply voltage regulators

M1

14

I

Mode selection pin

M2

15

I

Mode selection pin

M3

16

I

Mode selection pin

OTW

25

O

Overtemperature warning output, open drain with internal pullup

OUT_A

50, 51

O

Output, half-bridge A

OUT_B

46, 47

O

Output, half-bridge B

OUT_C

38, 39

O

Output, half-bridge C

OUT_D

34, 35

O

Output, half-bridge D

PVDD_A

52, 53

P

Power supply input for half-bridge A

PVDD_B

44, 45

P

Power supply input for half-bridge B

PVDD_C

40, 41

P

Power supply input for half-bridge C

PVDD_D

32, 33

P

Power supply input for half-bridge D

PWM_AM

9

I

Input signal (negative), half-bridge A

PWM_AP

8

I

Input signal (positive), half-bridge A

PWM_BM

11

I

Input signal (negative), half-bridge B

PWM_BP

12

I

Input signal (positive), half-bridge B

PWM_CM

19

I

Input signal (negative), half-bridge C

PWM_CP

18

I

Input signal (positive), half-bridge C

PWM_DM

21

I

Input signal (negative), half-bridge D

PWM_DP

22

I

Input signal (positive), half-bridge D

RESET_AB

10

I

Reset signal, active low

RESET_CD

20

I

Reset signal, active low

SD_AB

23

O

Shutdown signal for half-bridges A and B

SD_CD

24

O

Shutdown signal for half-bridges C and D

(1) I = input, O = output, P = power