VO3526(2008) データシートの表示（PDF） - Vishay Semiconductors

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VO3526
(Rev.:2008)

Power Phototriac

Vishay Semiconductors 

VO3526

Vishay Semiconductors

Power Phototriac

ABSOLUTE MAXIMUM RATING CURVES

80

60

40

20

21296

0

- 40 - 20 0 20 40 60 80 100 120

TA - Ambient Temperature (°C)

Fig. 1 - Power Dissipation vs. Temperature

1.2

1.0

0.8

0.6

0.4

0.2

0

- 40 - 20 0 20 40 60 80 100 120

21502

Ambient Temperature (°C)

Fig. 2 - Allowable Load Current vs. Ambient Temperature

Note

The allowable load current was calculated out under a given

operating conditions and only for reference:

LED power: QE = 0.015 W, θBA (4-layer) = 30 °C/W

THERMAL CHARACTERISTICS

PARAMETER

SYMBOL VALUE

Maximum LED

junction temperature

Tjmax.

105

Maximum NOT

junction temperature

Tjmax.

105

Thermal resistance,

junction NOT to bord

θNOT-B

75

Thermal resistance,

junction NOT to case

θNOT-C

150

Thermal resistance,

junction OT to board

θOT-B

158

Thermal resistance,

junction OT to case

θOT-C

157

Thermal resistance,

junction emitter to board

θE-B

149

Thermal resistance,

junction emitter to case

θE-C

161

Thermal resistance,

junction NOT to junction OT

θNOT-OT

243

Thermal resistance,

junction emitter to junction NOT

θE-NOT

420

Thermal resistance,

junction emitter to junction OT

θE-OT

235

Thermal resistance,

case to ambient

θCA

130

UNIT

°C

°C

°C/W

°C/W

°C/W

°C/W

°C/W

°C/W

°C/W

°C/W

°C/W

°C/W

Note

The thermal model is represented in the thermal network below.

Each resistance value given in this model can be used to calculate

the temperatures at each node for a given operating condition. The

thermal resistance from board to ambient will be dependent on the

type of PCB, layout and thickness of copper traces. For a detailed

explanation of the thermal model, please reference Vishay's

Thermal Characteristics of Power Phototriac application note.

TCASE

TB

TCASE

TB

θNOT-B

θ θ NOT-C OT-C

θNOT-OT

QNOT

QOT

TNOT

TOT

θOT-B

θE-NOT

θE-OT

QE TE

Power Triac

Thermal Model

TB

TCASE

θE-B

θE-C

θBA

θCA

21295

TB

TCASE

TA

Thermal Model

NOT: Non-opto-triac

OT: Opto-triac

TB:

TCASE:

TA:

θBA:

QE:

QOT:

QNOT:

Board temperature

Case temperature

Ambient temperature

Thermal resistance, board to ambient

LED power dissipation

OT power dissipation

NOT power dissipation

www.vishay.com

2

For technical questions, contact: optocoupler.answers@vishay.com

Document Number: 81842

Rev. 1.2, 23-Oct-08

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