STTA1512PI Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

STTA1512PI

TURBOSWITCH ULTRA-FAST HIGH VOLTAGE DIODE

STMicroelectronics 

APPLICATION DATA (Cont’d)

STTA1512P/PI

Fig. F: TURN-OFF CHARACTERISTICS

V

Turn-on losses :

(in the transistor, due to the diode)

IL

TRANSISTOR

P5 = VR × I RM 2 × ( 3 + 2 × S ) × F

I

6 x dIF dt

t

+ VR × I RM × I L × ( S + 2 ) × F

2 x dIF dt

ct(s) I

u dI F/dt

DIODE

Prod t(s) V

ta tb

t

lete duc IRM

dI R /dt

so ro VR

b P trr = ta + tb S = tb / ta

) - O lete I

t(s so dIF /dt = VR /L

RECTIFIER

OPERATION

duc Ob V

ta tb

Pro t(s) - IRM

dIR /dt

lete duc trr = ta + tb

so ro S = tb/ta

t

VR

b P Fig. G: TURN-ON CHARACTERISTICS

O lete IF

Obso dIF/dt

I Fmax

Turn-off losses (in the diode) :

P3 = VR × I RM 2 × S × F

6 x dIF dt

Turn-off losses :

(with non negligible serial inductance)

P3’ = VR

× I RM 2 × S

×F

+

6 x dIF dt

L × I RM 2 × F

2

P3,P3’ and P5 are suitable for power MOSFET

and IGBT

0

VF

V Fp

t

Turn-on losses :

P4 = 0.4 (VFP - VF) . IFmax . tfr . F

1.1V F

VF

0

t

tfr

7/9

Share Link: