Datasheet STTH20L03C Datasheet (ST)

Features

STTH20L03C

High frequency secondary rectifier

Datasheet − production data

■ Ultrafast, soft and noise-free recovery

■ Low forward voltage drop

Description

Dual center tap fast recovery epitaxial diodes
suited for switch mode power supply and high
frequency DC/DC converters.

Packaged in TO-220AB or D
especially intended for secondary rectification
inside SMPS with high space and power-density.

2

PAK, this device is

A1

A2

A2

K

A1

TO-220AB

STTH20L03CT

Table 1. Device summary

Symbol Value

I

F(AV)

V

RRM

T

j

V

(max) 0.95 V

F

(typ) 26 ns

t

rr

K

K

A2

A1

D2PAK

STTH20L03CG

2 x 10 A

300 V

-40 to +175 °C

June 2012 Doc ID 023115 Rev 1 1/9

This is information on a product in full production.

www.st.com

9

Characteristics STTH20L03C

1 Characteristics

Table 2. Absolute ratings (limiting values, per diode, at 25 °C, unless otherwise specified)

Symbol Parameter Value Unit

V

I

F(RMS)

I

F(AV)

I

T

Table 3. Thermal resistance

Repetitive peak reverse voltage 300 V

RRM

Forward rms current 30 A

T

= 155 °C

Average forward current, δ = 0.5

Surge non repetitive forward current tp = 10 ms sinusoidal 150 A

FSM

Storage temperature range -65 to + 175 °C

stg

Operating junction temperature range -40 to +175 °C

T

j

c

= 150 °C

T

c

Per diode
Per device

10
20

Symbol Parameter Value (max) Unit

Per diode 1.5

R

R

Junction to case

th(j-c)

Coupling 0.5

th(c)

°C/WTo ta l 1 .0

When diodes 1 and 2 are used simultaneously:
Tj

(diode 1)

Table 4. Static electrical characteristics (per diode)

= P

(diode 1)

x R

(Per diode) + P

th(j-c)

(diode 2)

x Rth(c)

A

Symbol Parameter Test conditions Min. Typ. Max. Unit

(1)

I

V

1. Pulse test: tp = 5 ms, δ < 2%

2. Pulse test: t

Reverse leakage current

R

(2)

Forward voltage drop

F

= 380 µs, δ < 2%

p

= 25 °C

j

= 125 °C 10 100

T

j

T

= 25 °C

j

Tj = 125 °C 0.8 0.95

= V

V

R

= 10 A

I

F

RRM

0.95 1.2

10

T

To evaluate the conduction losses use the following equation:
P = 0.8 x I

+ 0.015 I

F(AV)

F2(RMS))

µA

V

2/9 Doc ID 023115 Rev 1

STTH20L03C Characteristics

Table 5. Dynamic electrical characteristics (per diode)

Symbol Parameter Test conditions Min. Typ. Max. Unit

T

= 25 °C

j

t

Reverse recovery time

rr

= 125 °C

T

j

I

Reverse recovery current

S

Q

RM

factor

RR

t

fr

V

FP

Softness factor 0.3

Reverse recovery charges

Forward recovery time

Forward recovery voltage 2.5 3.5 V

Tj = 125 °C

T

= 125 °C IF = 10 A, VR = 200 V

j

= 25 °C

T

j

Figure 1. Conduction losses versus average

forward current (per diode)

P

(W)

F(AV)

16

14

12

10

8

6

4

2

0

02468101214

δ = 0.05 δ = 0.1

I

F(AV)

δ = 0.2

(A)

=tp/T

δ

δ = 0.5

T

Figure 3. Relative variation of thermal

impedance junction to case versus
pulse duration

Z

th(j-c)/Rth(j-c)

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

Single pulse

0.2

0.1

0.0

1.E-04 1.E-03 1.E-02 1.E-01 1.E+00

IF = 1 A, VR= 30 V
dIF/dt = -100 A/µs

IF = 10 A, VR = 200 V
dIF/dt = -200 A/µs

IF = 10 A, VR = 200 V

/dt = -200 A/µs

dI

F

/dt = -200 A/µs

dI

F

IF = 10 A, VFR = 1.05 V
dIF/dt = 100 A/µs

Figure 2. Forward voltage drop versus

100.0

δ = 1.0

10.0

1.0

tp

0.1

Figure 4. Peak reverse recovery current

IRM(A)

18

16

14

12

10

8

6

4

tp(s)

2

0

0 50 100 150 200 250 300 350 400 450 500

26 35

55 72

912A

250 375 nC

200 ns

forward current (per diode)

IFM(A)

Tj=125 °C

(Maximum values)

Tj=125 °C

(Typical values)

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2

versus dI

/dt (typical values, per

F

Tj=25 °C

(Maximum values)

VFM(V)

diode)

IF=I

F(AV)

VR=200 V
T

=125 °C

j

dIF/dt(A/µs)

ns

Doc ID 023115 Rev 1 3/9

Characteristics STTH20L03C

Figure 5. Reverse recovery time versus dIF/dt

(typical values, per diode)

trr(ns)

100

90

80

70

60

50

40

30

20

10

0

0 50 100 150 200 250 300 350 400 450 500

IF=I

F(AV)

VR=200 V
T

=125 °C

j

dIF/dt(A/µs)

Figure 7. Reverse recovery softness factor

versus dI

/dt (typical values, per

F

diode)

S

FACTOR

0.8

IF=I

F(AV)

VR=200 V

0.7

T

=125 °C

j

0.6

0.5

0.4

0.3

0.2

0.1

0.0
0 50 100 150 200 250 300 350 400 450 500

dIF/dt(A/µs)

Figure 6. Reverse recovery charge versus

dI

/dt (typical values, per diode)

F

QRR(nC)

400

IF=I

350

300

250

200

150

100

50

F(AV)

VR=200 V
T

=125 °C

j

dIF/dt(A/µs)

0

0 50 100 150 200 250 300 350 400 450 500

Figure 8. Relative variation of dynamic

parameters versus junction
temperature

2.0

1.8

S

FACTOR

1.6

1.4

1.2

1.0

0.8

I

RM

0.6

0.4

Q

0.2

RR

0.0
25 50 75 100 125

IF=I

VR=200 V

Reference: T

F(AV)

j

Tj(°C)

=125 °C

Figure 9. Transient peak forward voltage

versus dI

/dt (typical values, per

F

Figure 10. Forward recovery time versus dI

diode)

VFP(V)

14

IF=I

F(AV)

Tj=125 °C

12

10

8

6

4

2

0

0 50 100 150 200 250 300 350 400 450 500

dIF/dt(A/µs)

4/9 Doc ID 023115 Rev 1

t (ns)

FR

180

160

140

120

100

80

60

40

20

0

0 50 100 150 200 250 300 350 400 450 500

(typical values, per diode)

VFR=1.05 V

dIF/dt(A/µs)

IF=I

=125 °C

T

j

/dt

F

F(AV)

STTH20L03C Characteristics

Figure 11. Junction capacitance versus

reverse voltage applied (typical
values, per diode)

C(pF)

1000

100

10

1 10 100 1000

V

OSC

F=1 MHz

=30 mV

Tj=25 °C

RMS

VR(V)

Figure 12. Thermal resistance, junction to

ambient, versus copper surface
under tab (D

R

(°C/W)

th(j-a)

80

Printed circuit board FR4,
copper thickness: 35 µm

70

60

50

40

30

20

10

0

0 5 10 15 20 25 30 35 40

2

PAK )

D²PAK

SCu(cm²)

Doc ID 023115 Rev 1 5/9

Package information STTH20L03C

2 Package information

● Epoxy meets UL94, V0

● Cooling method: by conduction (C)

● Recommended torque value: 0.4 to 0.6 N·m

In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com
ECOPACK

Table 6. D

®

packages, depending on their level of environmental compliance. ECOPACK®

®

is an ST trademark.

2

PAK dimensions

.

Dimensions

Ref.

Millimeters Inches

Min. Max. Min. Max.

A 4.40 4.60 0.173 0.181

A

L2

E

C2

A1 2.49 2.69 0.098 0.106

A2 0.03 0.23 0.001 0.009

B 0.70 0.93 0.027 0.037

L

L3

G

A1

B2
B

C

A2

D

R

B2 1.14 1.70 0.045 0.067

C 0.45 0.60 0.017 0.024

C2 1.23 1.36 0.048 0.054

D 8.95 9.35 0.352 0.368

E 10.00 10.40 0.393 0.409

G 4.88 5.28 0.192 0.208

M

*

V2

* FLAT ZONE NO LESSTHAN 2mm

Figure 13. Footprint (dimensions in mm)

16.90

10.30

8.90

6/9 Doc ID 023115 Rev 1

L 15.00 15.85 0.590 0.624

L2 1.27 1.40 0.050 0.055

L3 1.40 1.75 0.055 0.069

M 2.40 3.20 0.094 0.126

R 0.40 typ. 0.016 typ.

V2 0° 8° 0° 8°

5.08

1.30

3.70

STTH20L03C Package information

D

Table 7. TO-220AB dimensions

Dimensions

Ref.

Millimeters Inches

Min. Max. Min. Max.

A 4.40 4.60 0.173 0.181

C 1.23 1.32 0.048 0.051

H2

Dia

L5

L6

L2

F2

F1

F

G1

G

L9

L4

A

C

L7

D

M

E

D 2.40 2.72 0.094 0.107

E 0.49 0.70 0.019 0.027

F 0.61 0.88 0.024 0.034

F1 1.14 1.70 0.044 0.066

F2 1.14 1.70 0.044 0.066

G 4.95 5.15 0.194 0.202

G1 2.40 2.70 0.094 0.106

H2 10 10.40 0.393 0.409

L2 16.4 typ. 0.645 typ.

L4 13 14 0.511 0.551

L5 2.65 2.95 0.104 0.116

L6 15.25 15.75 0.600 0.620

L7 6.20 6.60 0.244 0.259

L9 3.50 3.93 0.137 0.154

M 2.6 typ. 0.102 typ.

Diam. 3.75 3.85 0.147 0.151

Doc ID 023115 Rev 1 7/9

Ordering information STTH20L03C

3 Ordering information

Table 8. Ordering information

Order code Marking Package Weight Base qty Delivery mode

STTH20L03CT STTH20L03CT TO-220AB 1.9 g 50 Tube

STTH20L03CG-TR STTH20L03CG

4 Revision history

Table 9. Document revision history

Date Revision Changes

22-Jun-2012 1 Initial release.

D2PA K

1.48 g 1000 Tape and reel

8/9 Doc ID 023115 Rev 1

STTH20L03C

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Doc ID 023115 Rev 1 9/9