TAS5731MPHPR datasheet(7/81 Pages) TI1

7 / 81 page

TAS5731M

www.ti.com

SLOS838C – JULY 2013 – REVISED AUGUST 2015

7.3 Recommended Operating Conditions

MIN

NOM

MAX

UNIT

Digital/analog supply voltage

DVDD, AVDD

3.3

3.6

Half-bridge supply voltage

PVDD_x

26.4(1)

VIH

High-level input voltage

5-V tolerant

VIL

Low-level input voltage

5-V tolerant

0.8

Operating ambient temperature range

°C

(2)

Operating junction temperature range

125

°C

RL (PBTL)

Load impedance

Output filter: L = 15

μH, C = 680 nF

Ω

RL (BTL)

Load impedance

Output filter: L = 15

μH, C = 680 nF

Ω

RL (SE)

Load impedance

Output filter: L = 15

μH, C = 680 nF

Ω

Minimum output inductance under short-

Output-filter inductance

μH

circuit condition

(1)

For operation at PVDD_x levels greater than 18 V, the modulation limit must be set to 93.8% through the control port register 0x10.

(2)

Continuous operation above the recommended junction temperature may result in reduced reliability and/or lifetime of the device.

7.4 Thermal Information

TAS5731M

THERMAL METRIC(1)

PHP (HTQFP)

UNIT

48 PINS

RθJA

Junction-to-ambient thermal resistance

27.9

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

1.1

°C/W

RθJB

Junction-to-board thermal resistance

°C/W

ψJT

Junction-to-top characterization parameter

20.7

°C/W

ψJB

Junction-to-board characterization parameter

0.3

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

6.7

°C/W

(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report, SPRA953.

7.5 PWM Operation at Recommended Operating Conditions

PARAMETER

TEST CONDITIONS

VALUE

UNIT

11.025/22.05/44.1-kHz data rate ±2%

352.8

Output PWM switch frequency

kHz

48/24/12/8/16/32-kHz data rate ±2%

384

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