64-PIN, HTQFP PACKAGE (TOP VIEW)

AVDD

AVSS

DVDD

MCLK

DVDD

CONFIG_2

CONFIG_1

RESET

PLL_FLTM

PLL_FLTP

VR_ANA

TEST1

BKND_ERR

VALID

SUB_PWM–

SUB_PWM+

GND

GND

VDD

GVDD_AB

GVDD_CD

PVDD_A

PVDD_A

PVDD_D

PVDD_D

VREG

OC_ADJ

FAULT

OUT_A

OUT_D

BST_A

BST_D

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

P0071-03

PAP Package

(TopView)

TAS5701

TERMINAL FUNCTIONS

TERMINAL

5-V

TERMINATION

DESCRIPTION

TOLERANT

(2) (3)

NAME

NO.

AVDD

10

P

3.3-V Analog power supply

AVSS

11

P

Analog 3.3-V supply ground

BKND_ERR

37

DI

Pullup

Active low. A back-end error sequence is initiated by applying a logic

low to this pin. Connect to an external power stage. If no external

power stage is used, connect directly to DVDD.

BST_A

4

P

High-side bootstrap supply for half-bridge A

BST_B

57

P

High-side bootstrap supply for half-bridge B

(1)

TYPE: A = analog; D = 3.3-V digital; P = power/ground/decoupling; I = input; O = output

(2)

All pullups are 20-

µA weak pullups and all pulldowns are 20-µA weak pulldowns. The pullups and pulldowns are included to assure

proper input logic levels if the terminals are left unconnected (pullups

→ logic 1 input; pulldowns → logic 0 input). Devices that drive

inputs with pullups must be able to sink 50

µA while maintaining a logic-0 drive level. Devices that drive inputs with pulldowns must be

able to source 50

µA while maintaining a logic-1 drive level.

(3)

If desired, low-ESR capacitance values can be implemented by paralleling two or more ceramic capacitors of equal value. Paralleling

capacitors of equal value provides an extended high-frequency supply decoupling. This approach avoids the potential of producing

parallel resonance circuits that have been observed when paralleling capacitors of different values.

Copyright © 2008, Texas Instruments Incorporated

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