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April 2004
STW15NK90Z
N-CHANNEL 900V - 0.40
- 15A TO-247
Zener-Protected SuperMESHTM MOSFET
s
TYPICAL R
DS
(on) = 0.40
s
EXTREMELY HIGH dv/dt CAPABILITY
s
100% AVALANCHE TESTED
s
GATE CHARGE MINIMIZED
s
VERY LOW INTRINSIC CAPACITANCES
s
VERY GOOD MANUFACTURING
REPEATIBILITY
DESCRIPTION
The SuperMESHTM series is obtained through an
extreme optimization of ST's well established strip-
based PowerMESHTM layout. In addition to pushing
on-resistance significantly down, special care is tak-
en to ensure a very good dv/dt capability for the
most demanding applications. Such series comple-
ments ST full range of high voltage MOSFETs in-
cluding revolutionary MDmeshTM products.
APPLICATIONS
s
HIGH CURRENT, HIGH SPEED SWITCHING
s
IDEAL FOR OFF-LINE POWER SUPPLIES
ORDERING INFORMATION
TYPE
V
DSS
R
DS(on)
I
D
Pw
STW15NK90Z
900 V
< 0.55
15 A
350 W
SALES TYPE
MARKING
PACKAGE
PACKAGING
STW15NK90Z
W15NK90Z
TO-247
TUBE
TO-247
1
2
3
INTERNAL SCHEMATIC DIAGRAM
STW15NK90Z
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ABSOLUTE MAXIMUM RATINGS
( )
Pulse width limited by safe operating area
(1) I
SD
15A, di/dt
200 A/s, V
DD
900V , T
j
T
JMAX.
(*) Limited only by maximum temperature allowed
THERMAL DATA
AVALANCHE CHARACTERISTICS
GATE-SOURCE ZENER DIODE
PROTECTION FEATURES OF GATE-TO-SOURCE ZENER DIODES
The built-in back-to-back Zener diodes have specifically been designed to enhance not only the device's
ESD capability, but also to make them safely absorb possible voltage transients that may occasionally be
applied from gate to source. In this respect the Zener voltage is appropriate to achieve an efficient and
cost-effective intervention to protect the device's integrity. These integrated Zener diodes thus avoid the
usage of external components.
Symbol
Parameter
Value
Unit
V
DS
Drain-source Voltage (V
GS
= 0)
900
V
V
DGR
Drain-gate Voltage (R
GS
= 20 k
)
900
V
V
GS
Gate- source Voltage
30
V
I
D
Drain Current (continuous) at T
C
= 25C
15
A
I
D
Drain Current (continuous) at T
C
= 100C
9.5
A
I
DM
( )
Drain Current (pulsed)
60
A
P
TOT
Total Dissipation at T
C
= 25C
350
W
Derating Factor
2.77
W/C
V
ESD(G-S)
Gate source ESD(HBM-C=100pF, R=1.5K
)
6000
V
dv/dt (1)
Peak Diode Recovery voltage slope
4.5
V/ns
T
j
T
stg
Operating Junction Temperature
Storage Temperature
-55 to 150
C
Rthj-case
Thermal Resistance Junction-case Max
0.36
C/W
Rthj-amb
T
l
Thermal Resistance Junction-ambient Max
Maximum Lead Temperature For Soldering Purpose
50
300
C/W
C
Symbol
Parameter
Max Value
Unit
I
AR
Avalanche Current, Repetitive or Not-Repetitive
(pulse width limited by T
j
max)
15
A
E
AS
Single Pulse Avalanche Energy
(starting T
j
= 25 C, I
D
= I
AR
, V
DD
= 50 V)
360
mJ
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
BV
GSO
Gate-Source Breakdown
Voltage
Igs= 1mA (Open Drain)
30
V
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STW15NK90Z
ELECTRICAL CHARACTERISTICS (T
CASE
=25C UNLESS OTHERWISE SPECIFIED)
ON/OFF
DYNAMIC
SOURCE DRAIN DIODE
Note: 1. Pulsed: Pulse duration = 300 s, duty cycle 1.5 %.
2. Pulse width limited by safe operating area.
3. C
oss eq.
is defined as a constant equivalent capacitance giving the same charging time as C
oss
when V
DS
increases from 0 to 80%
V
DSS
.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
(BR)DSS
Drain-source
Breakdown Voltage
I
D
= 1 mA, V
GS
= 0
900
V
I
DSS
Zero Gate Voltage
Drain Current (V
GS
= 0)
V
DS
= Max Rating
V
DS
= Max Rating, T
C
= 125 C
1
50
A
A
I
GSS
Gate-body Leakage
Current (V
DS
= 0)
V
GS
= 20V
10
A
V
GS(th)
Gate Threshold Voltage
V
DS
= V
GS
, I
D
= 150 A
3
3.75
4.5
V
R
DS(on)
Static Drain-source On
Resistance
V
GS
= 10V, I
D
= 7.5 A
0.40
0.55
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
g
fs
(1)
Forward Transconductance
V
DS
= 15 V
,
I
D
= 7.5 A
15
S
C
iss
C
oss
C
rss
Input Capacitance
Output Capacitance
Reverse Transfer
Capacitance
V
DS
= 25V, f = 1 MHz, V
GS
= 0
6100
465
96
pF
pF
pF
C
oss eq.
(3)
Equivalent Output
Capacitance
V
GS
= 0V, V
DS
= 0V to 720V
230
pF
t
d(on)
t
r
t
d(off)
t
f
Turn-on Delay Time
Rise Time
Turn-off Delay Time
Fall Time
V
DD
= 450 V, I
D
= 7.5 A
R
G
= 4.7
V
GS
= 10 V
(Resistive Load see, Figure 3)
42
27
135
35
ns
ns
ns
ns
Q
g
Q
gs
Q
gd
Total Gate Charge
Gate-Source Charge
Gate-Drain Charge
V
DD
= 720 V, I
D
= 15 A,
V
GS
= 10V
190
56
70
256
nC
nC
nC
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
I
SD
I
SDM
(2)
Source-drain Current
Source-drain Current (pulsed)
15
60
A
A
V
SD
(1)
Forward On Voltage
I
SD
= 15 A, V
GS
= 0
1.6
V
t
rr
Q
rr
I
RRM
Reverse Recovery Time
Reverse Recovery Charge
Reverse Recovery Current
I
SD
= 15 A, di/dt = 100 A/s
V
DD
= 100 V, T
j
= 25C
(see test circuit, Figure 5)
748
10.5
28
ns
C
A
t
rr
Q
rr
I
RRM
Reverse Recovery Time
Reverse Recovery Charge
Reverse Recovery Current
I
SD
= 15 A, di/dt = 100 A/s
V
DD
= 100 V, T
j
= 150C
(see test circuit, Figure 5)
900
13
28.5
ns
C
A
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Thermal Impedance
Transfer Characteristics
Transconductance
Output Characteristics
Safe Operating Area
Static Drain-source On Resistance
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STW15NK90Z
Normalized BVDSS vs Temperature
Normalized On Resistance vs Temperature
Normalized Gate Thereshold Voltage vs Temp.
Capacitance Variations
Gate Charge vs Gate-source Voltage
Source-drain Diode Forward Characteristics
STW15NK90Z
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Maximum Avalanche Energy vs Temperature
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STW15NK90Z
Fig. 5: Test Circuit For Inductive Load Switching
And Diode Recovery Times
Fig. 4: Gate Charge test Circuit
Fig. 2: Unclamped Inductive Waveform
Fig. 1: Unclamped Inductive Load Test Circuit
Fig. 3: Switching Times Test Circuit For
Resistive Load
STW15NK90Z
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DIM.
mm.
inch
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
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
e
5.45
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
P
3.55
3.65
0.140
0.143
R
4.50
5.50
0.177
0.216
S
5.50
0.216
TO-247 MECHANICAL DATA
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STW15NK90Z
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consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
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