STV8162D datasheet(8/12 Pages) STMICROELECTRONICS

부품명	STV8162D

상세설명	5 V, 5 V and 8 V Triple-Voltage Regulator with Disable and Reset Functions

PDF	12 Pages

Scroll/Zoom	100%

제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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8 / 12 page

Power Dissipation and Layout Indications

STV8162 - STV8162D

8/12

Power Dissipation and Layout Indications

The power is mainly dissipated by the three device buffers. It can be calculated by the equation:

P = (VIN1-VOUT1) x IOUT1 + (VIN2-VOUT2) x IOUT2 + (VIN3-VOUT3) x IOUT3

The following table lists the different RthJA values of these packages with or without a heat sink and

the corresponding maximum power dissipation assuming:

●

Maximum Ambient Temperature = 70° C

●

Maximum Junction Temperature = 140° C

Device

Heat Sink

RthJA in °C/W

PMAX in W

STV8162

1.4

Yes

4.6

STV8162D

56 to 40

1.25 to 1.75

Yes

2.2

Figure 7: Thermal Resistance (Junction-to-Ambient) of DIP18 Package without Heat Sink

Figure 8: Metal plate mounted near the STV8162D for heat sinking

Copper area (cm²) (35 µm plus solder) Board is face-down

To optimize the thermal conductivity of the copper

layer and the exchanges with the air, the solder

must cover the maximum amount of this area.

Test Board with

“On Board” square heat sink area.

Top View

Bottom View

STV8162D 데이터시트(PDF) 8 Page - STMicroelectronics