Ricoh R3111x Series Instrukcja Użytkownika Pobierz pdf (Strona 30)

PACKAGE INFORMATION

PE-SOT-89-071210

POWER DISSIPATION (SOT-89)

This specification is at mounted on board. Power Dissipation (PD) depends on conditions of mounting on board.

This specification is based on the measurement at the condition below:

Measurement Conditions

Standard Land Pattern

Environment Mounting on Board (Wind velocity=0m/s)

Board Material Glass cloth epoxy plastic (Double sided)

Board Dimensions

50mm

× 50mm × 1.6mm

Copper Ratio Top side : Approx. 10% , Back side : Approx. 100%

Through-hole -

Measurement Result (Topt=25°C,Tjmax=125°C)

Standard Land Pattern Free Air

Power Dissipation 900mW 500mW

Thermal Resistance

θja=(125−25°C)/0.9W=111°C/W 200°C/W

0 50 10025 75 125 150

Ambient Temperature (°C)

250

500

900

750

1000

Power Dissipation P

(mW)

On Board

Free Air

Power Dissipation Measurement Board Pattern

IC Mount Area (Unit : mm)

RECOMMENDED LAND PATTERN (SOT-89)

3.0

45°

0.71.5

1.5

1.0

2.0

(Unit : mm)

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 43 44

Brak uwag

Ricoh R3111x Series Instrukcja Użytkownika Strona 30