STTA312B datasheet(2/8 Pages) STMICROELECTRONICS

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DYNAMIC ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Tests conditions

Value

Unit

Rth (j-c)

Junction to case thermal resistance

6.5

°C/W

Conduction power dissipation

IF(AV) = 3A,

δ = 0.5

Tc = 80

°C

6.7

Pmax

Total power dissipation

Pmax =P1 +P3

(P3 = 10% P1)

Tc = 76

°C

7.5

THERMAL AND POWER DATA

Symbol

Parameter

Tests conditions

Min.

Typ.

Max.

Unit

VF **

Forward voltage drop

IF =3 A

Tj = 25

°C

1.8

IF = 3 A

Tj = 125

°C

1.15

1.7

IR *

Reverse leakage current

VR = 0.8

XVRRM

Tj = 25

°C20

µA

Tj = 125

°C

150

400

µA

Vto

Threshold voltage

Ip < 3.IAV

Tj = 125

°C

1.15

Dynamic resistance

185

Ω

Test pulses :

* tp = 380

µs, δ <2%

** tp = 5 ms ,

δ <2%

STATIC ELECTRICAL CHARACTERISTICS

To evaluate the maximum conduction losses use the following equation :

P= Vto xIF(AV) +rd x IF

(RMS)

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

trr

Tj=25

°CIF= 0.5A IR=1A Irr= 0.25A

IF=1A

dIF/dt= 50A/

µs

VR= 30V

115

IRM

Maximum

recovery current

Tj = 125

°CIF=3A VR= 600V

dIF/dt = -16A/

µs

dIF/dt = -50A/

µs

6.0

3.6

S factor

Softness factor

Tj = 125

°CVR= 600V

IF=3A

dIF/dt = -50A/

µs

1.2

TURN-OFF SWITCHING

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

tfr

Forward recovery

time

Tj=25

°C

IF=3A dIF/dt = 16A/

µs

Measured at 1.1 x VFmax

900

VFP

Peak forward voltage

TURN-ON SWITCHING

STTA312B

2/8

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