Datasheet STF40NF20 Specification

STP40NF20 - STF40NF20

3

STB40NF20 - STW40NF20

N-channel 200V - 0.038Ω -40A- D2PAK/TO-220/TO-220FP/TO-247

Low gate charge STripFET™ Power MOSFET

Features

Typ e V

STB40NF20 200V <0.045Ω 40A 160W

STP40NF20 200V <0.045Ω 40A 160W

STF40NF20 200V <0.045Ω 40A 40W

STW40NF20 200V <0.045Ω 40A 160W

■ Gate charge minimized

■ Very low intrinsic capacitances

■ Very good manufacturing repeatability

■ Excellent figure of merit (R

■ 100% avalanche tested

DSS RDS(on)

DS*Qg

I

)

P

D

W

3

1

D2PAK

TO-247

TO-220

TO-220FP

3

2

1

2

1

Description

This Power MOSFET series realized with
STMicroelectronics unique STripFET process has
specifically been designed to minimize input
capacitance and gate charge. It is therefore
suitable as primary switch in advanced high­efficiency isolated DC-DC converters.

Applications

■ Switching application

Table 1. Device summary

Order codes Marking Package Packaging

STB40NF20 40NF20 D

STP40NF20 40NF20 TO-220 Tube

STF40NF20 40NF20 TO-220FP Tube

STW40NF20 40NF20 TO-247 Tube

Figure 1. Internal schematic diagram

2

PAK Tape & reel

July 2007 Rev 2 1/17

www.st.com

17

Contents STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20

Contents

1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2/17

STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20 Electrical ratings

1 Electrical ratings

Table 1. Absolute maximum ratings

Val ue

Symbol Parameter

Drain-source voltage (VGS = 0) 200 V

Gate- source voltage ± 20 V

Drain current (continuous) at TC = 25°C 40 A

Drain current (continuous) at TC = 100°C 25 A

Drain current (pulsed) 160 A

Total dissipation at TC = 25°C 160 40 W

I

V

V

I

D

I

D

DM

P

DS

GS

(1)

(1)

(2)

tot

Derating Factor 1.28 0.32 W/°C

(3)

dv/dt

Peak diode recovery voltage slope 12 V/ns

Insulation withstand voltage (RMS) from all

V

ISO

three leads to external heat sink
(t = 1s; Tc = 25°C)

T

stg

T

j

1. Value limited by wire bonding

2. Pulse width limited by safe operating area.

3. ISD ≤ 40A, di/dt ≤ 200A/µs, VDD ≤ V

Storage temperature

Max. operating junction temperature

(BR)DSS

, Tj ≤ T

JMAX

TO-220

2

D

PAK

TO-220FP

TO-247

-- 2500 V

-55 to 150 °C

Unit

Table 2. Thermal data

Symbol Parameter

Rthj-case Thermal resistance junction-case max 0.78 3.1 °C/W

Rthj-amb Thermal resistance junction-ambient max 62.5 50 62.5 °C/W

T

1. for 10 sec. 1.6mm from case

Maximum lead temperature for soldering

J

purpose

(1)

TO-220

2

D

PAK

TO-247 TO-220FP Unit

300 °C

Table 3. Avalanche characteristics

Symbol Parameter Max value Unit

I

AR

E

Avalanche current, repetitive or not-repetitive
(pulse width limited by T

max)

j

Single pulse avalanche energy

AS

(starting T

= 25 °C, ID = IAR, VDD = 50 V)

j

40 A

230 mJ

3/17

Electrical characteristics STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20

2 Electrical characteristics

(T

=25°C unless otherwise specified)

CASE

Table 4. On/off states

Symbol Parameter Test conditions Min. Typ. Max. Unit

V

(BR)DSS

I

DSS

I

GSS

V

GS(th)

R

DS(on)

Drain-source
breakdown voltage

Zero gate voltage
drain current (VGS = 0)

Gate-body leakage
current (VDS = 0)

ID = 1mA, VGS =0 200 V

VDS = max ratings
VDS = max ratings@125°C

1

10µAµA

VGS = ± 20V ±100 nA

Gate threshold voltage VDS = VGS, ID = 250µA 2 3 4 V

Static drain-source on
resistance

= 10V, ID = 20A 0.038 0.045 Ω

V

GS

Table 5. Dynamic

Symbol Parameter Test conditions Min. Typ. Max. Unit

Forward

(1)

g

fs

C

C

oss

C

transconductance

Input capacitance

iss

Output capacitance
Reverse transfer

rss

capacitance

V

= 15V, ID=20A 30 S

DS

= 25V, f = 1MHz,

V

DS

VGS = 0

2500

510

78

pF
pF
pF

t

d(on)

t

t

d(off)

t

Q
Q
Q

1. Pulsed: Pulse duration = 300 µs, duty cycle 1.5%.

Turn-on delay time
Rise time

r

Turn-off delay time
Fall time

f

Total gate charge

g

Gate-source charge

gs

Gate-drain charge

gd

V
R
(see Figure 17)

VDD = 160V, ID = 40A,
V
(see Figure 18)

4/17

= 100V, ID = 20A

DD

=4.7Ω VGS = 10V

G

= 10V

GS

20
44
74
22

75

13.2

35.5

ns
ns
ns
ns

nC
nC
nC

STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20 Electrical characteristics

Table 6. Source drain diode

Symbol Parameter Test conditions Min. Typ. Max. Unit

I

SD

I

SDM

V

SD

t

Q

I

RRM

t

Q

I

RRM

1. Pulse width limited by safe operating area.

2. Pulsed: Pulse duration = 300 µs, duty cycle 1.5%

Source-drain current
Source-drain current

(1)

(pulsed)

(2)

Forward on voltage ISD = 20A, VGS = 0 1.5 V

Reverse recovery time

rr

Reverse recovery charge

rr

Reverse recovery current

Reverse recovery time

rr

Reverse recovery charge

rr

Reverse recovery current

ISD = 20A,
di/dt = 100A/µs,

= 25V

V

DD

(see Figure 19)

= 20A,

I

SD

di/dt = 100A/µs,

= 25V, Tj = 150°C

V

DD

(see Figure 19)

192
922

9.6

242

1440

11.9

40

160

A
A

ns

nC

A

ns

nC

A

5/17

Electrical characteristics STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20

2.1 Electrical characteristics (curves)

Figure 2. Safe operating area for TO-220/

D

2

PAK

Figure 3. Thermal impedance area for TO-220/

D2PAK

Figure 4. Safe operating area for TO-247 Figure 5. Thermal impedance for TO-247

Figure 6. Safe operating area for TO-220FP Figure 7. Thermal impedance for TO-220FP

6/17

STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20 Electrical characteristics

Figure 8. Output characteristics Figure 9. Transfer characteristics

Figure 10. Transconductance Figure 11. Static drain-source on resistance

Figure 12. Gate charge vs gate-source voltage Figure 13. Capacitance variations

7/17

Electrical characteristics STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20

Figure 14. Normalized gate threshold voltage

vs temperature

Figure 16. Source-drain diode forward

characteristics

Figure 15. Normalized on resistance vs

temperature

8/17

STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20 Test circuit

3 Test circuit

Figure 17. Switching times test circuit for

resistive load

Figure 19. Test circuit for inductive load

switching and diode recovery times

Figure 18. Gate charge test circuit

Figure 20. Unclamped Inductive load test

circuit

Figure 21. Unclamped inductive waveform Figure 22. Switching time waveform

9/17

Package mechanical data STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20

4 Package mechanical data

In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a Lead-free second level interconnect. The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com

10/17

STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20 Package mechanical data

D2PAK MECHANICAL DATA

TO-247 MECHANICAL DATA

DIM.

A 4.4 4.6 0.1 73 0.181

A1 2.49 2.69 0.098 0. 106

A2 0.03 0.23 0.001 0. 009

B 0.7 0.93 0.027 0. 036

B2 1.14 1.7 0.0 44 0.067

C 0.45 0.6 0.017 0.023

C2 1.23 1.36 0.0 48 0.053

D 8.95 9.35 0.3 52 0.368

D1 8 0.315

E 10 10.4 0.393

E1 8.5 0.334

G 4.88 5.28 0.192 0.208

L 15 15.85 0.590 0.625

L2 1 .27 1.4 0.0 50 0.055

L3 1.4 1.75 0.0 55 0.068

M 2.4 3.2 0.094 0. 126

R0.4 0.015

V2 0º 4º

MIN. TYP MAX. MIN. TYP. MAX.

mm. inch

3

1

11/17

Package mechanical data STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20

TO-247 MECHANICAL DATA

DIM.

A 4.85 5.15 0.19 0.20

A1 2.20 2.60 0.086 0.102

b 1.0 1.40 0.039 0.055

b1 2.0 2 .40 0.079 0.094

b2 3.0 3 .40 0.118 0.134

c 0.40 0.80 0.015 0.03

D 19.85 20.15 0.781 0.793

E 15.45 15.75 0.608 0.620

e5.45 0.214

L 14.20 14.80 0.560 0.582

L1 3.70 4.30 0.14 0.17

L2 18.50 0.728

øP 3.55 3.65 0.140 0.143

øR 4.50 5.50 0.177 0.216

S5.50 0.216

MIN. TYP MAX. MIN. TYP. MAX.

mm. inch

12/17

STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20 Package mechanical data

TO-220 mechanical data

Dim

Min Typ Max Min Typ Max

mm inch

A 4.40 4.60 0.173 0.181
b 0.61 0.88 0.024 0.034

b1 1.14 1.70 0.044 0.066

c0.49 0.70 0.019 0.027

D 15.25 15.75 0.6 0.62

D1 1.27 0.050

E 10 10.40 0.393 0.409
e 2.40 2.70 0.094 0.106

e1 4.95 5.15 0.194 0.202

F1.23 1.32 0.048 0.051

H1 6.20 6.60 0.244 0.256

J1 2.40 2.72 0.094 0.107

L13 14 0.511 0.551

L1 3.50 3.93 0.137 0.154
L20 16.40 0.645
L3028.90 1.137

∅P 3.75 3.85 0.147 0.151

Q2.65 2.95 0.104 0.116

13/17

Package mechanical data STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20

L2

A

B

D

E

H

G

L6

F

L3

G1

123

F2

F1

L7

L4

L5

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 4.4 4.6 0.173 0.181

B 2.5 2.7 0.098 0.106

D 2. 5 2.75 0.09 8 0.108

E 0.45 0.7 0.017 0.027

F 0.75 1 0.030 0.039

F1 1.15 1.7 0.045 0.067

F2 1.15 1.7 0.045 0.067

G 4.95 5.2 0.195 0.204

G1 2.4 2.7 0.094 0.106

H 10 10.4 0 .393 0.409

L2 16 0.630

L3 28.6 30.6 1.12 6 1.204

L4 9.8 10.6 .0385 0.417

L5 2.9 3.6 0.114 0.141

L6 15.9 16.4 0.62 6 0.645

L7 9 9.3 0.354 0.366

Ø 3 3.2 0.118 0.126

TO-220FP MECHANICAL DATA

14/17

STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20 Packaging mechanical data

5 Packaging mechanical data

D2PAK FOOTPRINT

TAPE AND REEL SHIPMENT

REEL MECHANICAL DATA

DIM.

A 330 12.992

B 1.5 0.059

C 12.8 13.2 0.504 0.520

D 20.2 0795

G 24.4 26.4 0.960 1.039

N 100 3.937

T 30.4 1.197

mm inch

MIN. MAX. MIN. MAX.

TAPE MECHANICAL DATA

DIM.

A0 10.5 10.7 0.413 0.421

B0 15.7 15.9 0.618 0.626

D 1.5 1.6 0.059 0.063

D1 1.59 1.61 0.062 0.063

E 1.65 1.85 0.065 0.073

F 11.4 11 .6 0.449 0.456

K0 4.8 5.0 0.189 0.197

P0 3.9 4.1 0.153 0.161

P1 11.9 12.1 0.468 0.476

P2 1.9 2.1 0.075 0.082

R 50 1.574

T 0.25 0.35 0.0098 0.0137

W 23.7 24.3 0.933 0.956

* on sales type

mm inch

MIN. MAX. MIN. MAX.

BASE QTY BULK QTY

1000 1000

15/17

Revision history STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20

6 Revision history

Table 7. Revision history

Date Revision Changes

25-Jan-2007 1 First version

06-Jul-2007 2 Correctet Ptot value on Features

16/17

STB40NF20 - STF40NF20 - STP40NF20 - STW40NF20

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