TAS5705PAP datasheet(5/71 Pages) TI

5 / 71 page

64-PIN, HTQFP PACKAGE (TOP VIEW)

AVDD

AVSS

BKND_ERR

VALID

DVDD

MCLK

RESET

PLL_FLTM

PLL_FLTP

VR_ANA

TEST1

HPL_PWM

HPR_PWM

SUB_PWM–

SUB_PWM+

GND

SSTIMER

GVDD_AB

GVDD_CD

PVDD_A

PVDD_D

VREG

OC_ADJ

FAULT

OUT_A

OUT_D

BST_A

BST_D

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

P0071-01

PAP Package

(TopView)

TAS5705

www.ti.com ...................................................................................................................................................................................................... SLOS549 – JUNE 2008

TERMINAL FUNCTIONS

TERMINAL

5-V

TERMINATION

TYPE(1)

DESCRIPTION

TOLERANT

(2)

NAME

NO.

AVDD

3.3-V analog power supply. Needs close decoupling capacitor.

AVSS

Analog 3.3-V supply ground

BKND_ERR

Pullup

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

LOW to this terminal. This pin is connected to an external power

stage. If no external power stage is used, connect this pin directly to

DVDD.

BST_A

High-side bootstrap supply for half-bridge A

BST_B

High-side bootstrap supply for half-bridge B

BST_C

High-side bootstrap supply for half-bridge C

BST_D

High-side bootstrap supply for half-bridge D

(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.

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