6.4 Thermal Information: OPA277

THERMAL METRIC(1)

OPA277

UNIT

D (SOIC)

DRM (VSON)

P (PDIP)

8 PINS

8 PINS

8 PINS

RθJA

Junction-to-ambient thermal resistance

110.1

40.7

49.2

°C/W

RθJC(top)

Junction-to-case(top) thermal resistance

52.2

41.3

39.4

°C/W

RθJB

Junction-to-board thermal resistance

52.3

16.7

26.4

°C/W

ψJT

Junction-to-top characterization parameter

10.4

0.6

15.4

°C/W

ψJB

Junction-to-board characterization parameter

51.5

16.9

26.3

°C/W

RθJC(bot)

Junction-to-case(bottom) thermal resistance

N/A

3.3

N/A

°C/W

(1)

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

report

6.5 Thermal Information: OPA2277

THERMAL METRIC(1)

OPA2277

UNIT

D (SOIC)

DRM (VSON)

P (PDIP)

8 PINS

8 PINS

8 PINS

RθJA

Junction-to-ambient thermal resistance

126.9

39.3

47.2

°C/W

RθJC(top)

Junction-to-case(top) thermal resistance

67.1

36.9

36.0

°C/W

RθJB

Junction-to-board thermal resistance

70.3

15.4

24.4

°C/W

ψJT

Junction-to-top characterization parameter

18.8

0.4

13.4

°C/W

ψJB

Junction-to-board characterization parameter

69.5

15.6

24.3

°C/W

RθJC(bot)

Junction-to-case(bottom) thermal resistance

N/A

2.2

N/A

°C/W

(1)

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

report

6.6 Thermal Information: OPA4277

THERMAL METRIC(1)

OPA4277

UNIT

D (SOIC)

P (PDIP)

14 PINS

14 PINS

RθJA

Junction-to-ambient thermal resistance

86.5

66.3

°C/W

RθJC(top)

Junction-to-case(top) thermal resistance

38.5

20.5

°C/W

RθJB

Junction-to-board thermal resistance

43.5

26.8

°C/W

ψJT

Junction-to-top characterization parameter

7.4

2.1

°C/W

ψJB

Junction-to-board characterization parameter

42.9

26.2

°C/W

RθJC(bot)

Junction-to-case(bottom) thermal resistance

N/A

N/A

°C/W

(1)

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

report

www.ti.com

OPA277, OPA2277, OPA4277

SBOS079C – MARCH 1999 – REVISED FEBRUARY 2023

Copyright © 2023 Texas Instruments Incorporated

Submit Document Feedback

7

Product Folder Links: OPA277 OPA2277 OPA4277