ST STTH512 User Manual

STTH512

Ultrafast recovery - 1200 V diode

Main product characteristics

I

F(AV)

V

RRM

T

j

V

(typ) 1.25 V

F

(typ) 48 ns

t

rr

5 A

1200 V

175° C

Features and benefits

■ Ultrafast, soft recovery

■ Very low conduction and switching losses

■ High frequency and/or high pulsed current

operation

■ High reverse voltage capability

■ High junction temperature

■ Insulated package: TO-220FPAC

Electrical insulation = 2000 V

RMS

Capacitance = 12 pF

Description

The high quality design of this diode has
produced a device with low leakage current,
regularly reproducible characteristics and intrinsic
ruggedness. These characteristics make it ideal
for heavy duty applications that demand long term
reliability.

KA

A

K

TO-220AC

STTH512D

K

NC

DPAK

STTH512B

Order codes

Part Number Marking

STTH512D STTH512D

STTH512B STTH512B

STTH512B-TR STTH512B

STTH512FP STTH512FP

A

K

TO-220FPAC

STTH512FP

A

Such demanding applications include industrial
power supplies, motor control, and similar
mission-critical systems that require rectification
and freewheeling. These diodes also fit into
auxiliary functions such as snubber, bootstrap,
and demagnetization applications.

The improved performance in low leakage
current, and therefore thermal runaway guard
band, is an immediate competitive advantage for
this device.

March 2006 Rev 1 1/10

www.st.com

10

Characteristics STTH512

1 Characteristics

Table 1. Absolute ratings (limiting values at 25° C, unless otherwise specified)

Symbol Parameter Value Unit

V

RRM

Repetitive peak reverse voltage 1200 V

TO-220AC / TO-220FPAC 30

I

F(RMS)

I

F(AV)

I

FRM

I

FSM

T

Table 2. Thermal parameters

RMS forward current

DPAK 10

Average forward current, δ = 0.5

TO-220AC / DPAK T

TO-220FPAC T

= 145° C

c

= 105° C

c

Repetitive peak forward current tp = 5 µs, F = 5 kHz square 60 A

Surge non repetitive forward current tp = 10 ms Sinusoidal 55 A

Storage temperature range -65 to + 175 °C

stg

T

Maximum operating junction temperature 175 °C

j

5A

Symbol Parameter Value Unit

TO-220AC / DPAK 2.5

R

th(j-c)

Table 3. Static electrical characteristics

Junction to case

TO-220FPAC 5.8

A

°C/W

Symbol Parameter Test conditions Min. Typ Max. Unit

(1)

I

R

V

1. Pulse test: tp = 5 ms, δ < 2 %

2. Pulse test: t

Reverse leakage current

(2)

Forward voltage drop

F

= 380 µs, δ < 2 %

p

= 25° C

j

Tj = 125° C 3 30

= 25° C

T

j

= 150° C 1.25 1.9

T

j

V

R

I

= 5 A

F

= V

RRM

5

2.2

T

To evaluate the conduction losses use the following equation:
P = 1.5 x I

Table 4. Dynamic characteristics

Symbol Parameter

t

rr

I

RM

Reverse recovery time

Reverse recovery current

F(AV)

+ 0.08 I

F2(RMS)

Test conditions

IF = 1 A, dIF/dt = -50 A/µs,

= 30 V, Tj = 25° C

V

R

= 1 A, dIF/dt = -100 A/µs,

I

F

= 30 V, Tj = 25° C

V

R

IF = 5 A, dIF/dt = -200 A/µs,
V

= 600 V, Tj = 125° C

R

Min. Typ Max. Unit

95

48 70

11 16 A

µA

VTj = 125° C 1.30 2.0

ns

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STTH512 Characteristics

Table 4. Dynamic characteristics

= 5 A, dIF/dt = -200 A/µs,

I

S Softness factor

Forward recovery time

t

fr

V

Forward recovery voltage

FP

F

= 600 V, Tj = 125° C

V

R

= 5 A dIF/dt = 50 A/µs

I

F

= 1.5 x V

V

FR

I

= 5 A, dIF/dt = 50 A/µs,

F

, Tj = 25° C

Fmax

Tj = 25° C

2

400 ns

9.5 V

Figure 1. Conduction losses versus

average current

P(W)

13

12

11

10

9

8

7

6

5

4

3

2

1

0

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

δ = 0.05

δ = 0.1

I (A)

F(AV)

δ = 0.2

δ = 0.5

δ

δ = 1

T

=tp/T

Figure 3. Relative variation of thermal

impedance junction to case
versus pulse duration

Z/R

th(j-c) th(j-c)

1.0

Single pulse
TO-220AC

0.9

DPAK

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0

1.E-03 1.E-02 1.E-01 1.E+00

t (s)

p

Figure 5. Peak reverse recovery current

versus dI

/dt (typical values)

F

Figure 2. Forward voltage drop versus

forward current

I (A)

FM

50

45

40

35

30

25

20

15

10

tp

5

0

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

T=150°C

j

(maximum values)

T=150°C

j

(typical values)

V (V)

FM

Figure 4. Relative variation of thermal

impedance junction to case versus
pulse duration

Z/R

th(j-c) th(j-c)

1.0

Single pulse
TO-220FPAC

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0

1.E-03 1.E-02 1.E-01 1.E+00 1.E+01

t (s)

p

Figure 6. Reverse recovery time versus dI

(typical values)

T=25°C

j

(maximum values)

F

/dt

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