TPS25751D datasheet(10/89 Pages) TI1

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6.5 Thermal Information

6.5.1 TPS25751D - Thermal Information

THERMAL METRIC(1)

TPS25751D

UNIT

QFN

38 PINS

RθJA

Junction-to-ambient thermal resistance

(sinking through PP_HV)

57.4

°C/W

Junction-to-ambient thermal resistance

(sourcing through PP_5V)

46.5

°C/W

RθJC (top)

Junction-to-case (top) thermal resistance

(sinking through PP_HV)

30.5

°C/W

Junction-to-case (top) thermal resistance

(sourcing through PP_5V)

20.3

°C/W

RθJB

Junction-to-board thermal resistance

(sinking through PP_HV)

21.1

°C/W

Junction-to-board thermal resistance

(sourcing through PP_5V)

11.1

°C/W

ψJT

Junction-to-top characterization parameter

(sinking through PP_HV)

18.2

°C/W

Junction-to-top characterization parameter

(sourcing through PP_5V)

1.0

°C/W

ψJB

Junction-to-board characterization

parameter (sinking through PP_HV)

21.1

°C/W

Junction-to-board characterization

parameter (sourcing through PP_5V)

11.1

°C/W

RθJC (bot_GND)

Junction-to-case (bottom GND pad)

thermal resistance

1.8

°C/W

RθJC (bot_DRAIN)

Junction-to-case (bottom DRAIN pad)

thermal resistance

4.6

°C/W

(1)

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

report.

6.5.2 TPS25751S - Thermal Information

THERMAL METRIC(1)

TPS25751S

UNIT

QFN

32 PINS

RθJA

Junction-to-ambient thermal resistance

30.5

°C/W

RθJC (top)

Junction-to-case (top) thermal resistance

24.5

°C/W

RθJC

Junction-to-board (bottom) thermal

resistance

°C/W

RθJB

Junction-to-board thermal resistance

9.8

°C/W

ψJT

Junction-to-top characterization parameter

0.2

°C/W

ψJB

Junction-to-board characterization

parameter

9.7

°C/W

(1)

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

report.

TPS25751

SLVSH93 – OCTOBER 2023

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TPS25751D Datasheet(PDF) 10 Page - Texas Instruments

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