L6374 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

L6374

Industrial quad line driver

STMicroelectronics 

Thermal characteristics

4

Thermal characteristics

L6374

4.1

4.2

4.3

Table 4. Thermal data

Symbol

Parameter

RthJP

RthJA1

RthJA2

Thermal resistance, junction to pin

Thermal resistance, junction to ambient

(see thermal characteristics)

Thermal resistance, junction to ambient

(see thermal characteristics)

Value

17

65

80

Unit

°C/W

°C/W

°C/W

RthJP

The reference point is the knee on the four central pins, where the pins are upwardly bent

and the soldering joint with the PCB footprint can be made.

RthJA1

If a dissipating surface, thick at least 35 µm, and with a surface similar or bigger than the

one shown, is created making use of the printed circuit. Such heatsinking surface is

considered on the bottom side of an horizontal PCB (worst case).

RthJA2

If the power dissipating pins (the four central ones), as well as the others, have a minimum

thermal connection with the external world (very thin strips only) so that the dissipation

takes place through still air and through the PCB itself.

It is the same situation of point above, without any heatsinking surface created on purpose

on the board.

6/19

Share Link: