VRM = 200 V, IF = 5 A, 10 A, 15 A
Fast Recovery Diode Built-in Temperature Detection
FMKS Series
Data Sheet
Package
The FMKS Series is the fast recovery diode built-in
temperature detection.
A fast recovery diode and a Schottky barrier diode for
temperature detection are formed on the same die. Thus,
the FMKS Series achieves highly accurate temperature
detection that is higher than that with a thermistor,
component reduction, power supply downsizing, and
easy attachment.
TO220F-3L
ns
Description
Built-in temperature detection
Highly accurate temperature detection of FRD
Component reduction of temperature detection
High speed switching
Low forward voltage drop
(1)(2)(3)
OUT
(+)
DS
3
2
de
PC1
en
Converter IC
FB
m
REF
U1
RS
ec
o
R
ot
N
FMKS Series
Products
U2
m
PC1
(1) Anode of Schottky barrier diode, SBD,
for temerature detection
(2) Cathode
(3) Anode of fast recovery diode, FRD
d
ANODE 1
of SBD
(2)
fo
FMKS series
T1
(3)
rN
Typical Application
Not to scale
FRD
D
SBD
(1)
ew
●
●
●
●
●
es
ig
Features
(-)
VRM
FMKS-2052
FMKS-2102
IF
VF
trr
0.98 V
50 ns
5A
200 V
10 A
FMKS-2152
15 A
where,
VRM is peak reverse voltage,
IF is average forward current,
VF is forward voltage drop, and
trr is reverse recovery time
Application
The following with thermal protection circuit and
peak power limiting circuit, and so forth
● Audio
● White goods
● Power Supplies
FMKS-DSE Rev.1.0
SANKEN ELECTRIC CO.,LTD.
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© SANKEN ELECTRIC CO.,LTD. 2016
1
FMKS Series
CONTENTS
Description ------------------------------------------------------------------------------------------------------ 1
CONTENTS ---------------------------------------------------------------------------------------------------- 2
1. Absolute Maximum Ratings ----------------------------------------------------------------------------- 3
2. Electrical Characteristics -------------------------------------------------------------------------------- 4
es
ig
ns
3. Performance Curves -------------------------------------------------------------------------------------- 5
3.1 Schottky Barrier Diode for Temperature Detection Diode Characteristics ------------- 5
3.2 Fast Recovery Diode Characteristics ------------------------------------------------------------ 6
3.2.1
FMKS-2052 ------------------------------------------------------------------------------------- 6
3.2.2
FMKS-2102 ------------------------------------------------------------------------------------- 8
3.2.3
FMKS-2152 ------------------------------------------------------------------------------------- 9
4. External Dimensions ------------------------------------------------------------------------------------ 11
5. Marking Diagram --------------------------------------------------------------------------------------- 11
D
6. Temperature Detection Application of FMKS Series -------------------------------------------- 12
N
ot
R
ec
o
m
m
en
de
d
fo
rN
ew
IMPORTANT NOTES ------------------------------------------------------------------------------------- 14
FMKS-DSE Rev.1.0
SANKEN ELECTRIC CO.,LTD.
Feb.08, 2016
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© SANKEN ELECTRIC CO.,LTD. 2016
2
FMKS Series
1.
Absolute Maximum Ratings
Unless specifically noted TA = 25 °C.
Parameter
Symbol
Conditions
Rating
Unit
Note
Fast Recovery Diode (FRD)
Transient Peak Reverse Voltage
VRSM
200
V
Peak Repetitive Reverse Voltage
VRM
200
V
5
IF(AV)
10
15
IFSM
I2t
1 ms ≤ t ≤10 ms
FMKS-2052
A
FMKS-2152
50
FMKS-2052
98
A2s
144.5
−40 to 150
°C
1 .0
kV
90
V
90
V
Tj
−40 to 150
°C
Tstg
−40 to 150
°C
Storage Temperature
Tstg
rN
°C
Tj
Between the case and
each pin, 1 minute, ac
fo
−
Isolation Voltage
FMKS-2102
FMKS-2152
−40 to 150
Junction Temperature
FMKS-2102
170
ew
I2t Limiting Value
140
D
Surge Forward Current
FMKS-2102
FMKS-2152
es
ig
100
10 ms, half sine wave,
one shot
A
ns
Average Forward Current
FMKS-2052
VRSM
Peak Repetitive Reverse Voltage
VRM
en
de
Transient Peak Reverse Voltage
N
ot
R
ec
o
m
m
Junction Temperature
Storage Temperature
d
Schottky Barrier Diode for Temperature Detection (SBD)
FMKS-DSE Rev.1.0
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3
FMKS Series
2.
Electrical Characteristics
Min.
Typ.
Max.
IF = 5 A
−
−
0.98
IF = 10 A
−
−
0.98
IF = 15 A
−
−
0.98
FMKS-2152
−
−
50
FMKS-2052
−
−
100
−
−
150
−
−
−
−
−
D
Unless specifically noted TA = 25 °C.
Parameter
Symbol
Conditions
Unit
Note
−
−
−
50
ns
−
−
35
ns
−
−
4.0
°C/W
−
−
50
µA
−
−
2.0
mA
1 .2 0
1 .9 0
2.60
mA
−
−
55
mA
Fast Recovery Diode (FRD)
trr1
Reverse Recovery Time
trr2
Thermal Resistance*
VR = VRM
Tj = 150 °C
IF = IRP = 100 mA,
Tj = 25 °C,
90 % recovery point
IF = 100 mA,
IRP = 200 mA,
Tj = 25 °C,
75 % recovery point
Rth(j-C)
V
FMKS-2102
FMKS-2152
3
6
FMKS-2102
ns
µA
es
ig
H･IR
VR = VRM
ew
Reverse Leakage Current
Under High Temperature
IR
rN
Reverse Leakage Current
VF
fo
Forward Voltage Drop
FMKS-2052
mA
10
FMKS-2052
FMKS-2102
FMKS-2152
IR2
VR = 90V
H･IR1
de
VR = 15V
en
Reverse Leakage Current
Under High Temperature
IR1
VR = 15V, Tj = 130 °C
m
Reverse Leakage Current
d
Schottky Barrier Diode for Temperature Detection Diode (SBD)
N
ot
R
ec
o
m
VR = 90V, Tj = 150 °C
H･IR2
* Rth(j-C) is thermal resistance between junction and case.
FMKS-DSE Rev.1.0
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Feb.08, 2016
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© SANKEN ELECTRIC CO.,LTD. 2016
4
FMKS Series
3.
Performance Curves
3.1
Schottky Barrier Diode for Temperature Detection Diode Characteristics
In Figure 3-1, the reverse voltage of Schottky Barrier Diode for temperature detection (SBD), VR, is 15V.
The temperature of fast recovery diode (FRD) can be estimated by using Figure 3-1.
5.0
es
ig
Reverse Leakage Current, IR (mA)
4.0
ns
max.
typ.
min.
ew
D
3.0
rN
2.0
0.0
80
90
100
de
70
d
fo
1.0
110
120
130
140
en
Junction Temperature, Tj (°C)
N
ot
R
ec
o
m
m
Figure 3-1 Temperature dependent of Reverse Leakage Current, IR (SBD)
FMKS-DSE Rev.1.0
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Feb.08, 2016
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© SANKEN ELECTRIC CO.,LTD. 2016
5
FMKS Series
3.2
Fast Recovery Diode Characteristics
T is a pulse cycle, t is a pulse width.
3.2.1
FMKS-2052
3.2.1.1. Typical Characteristics
10
1.E-02
1.E-03
TA = 150°C
ns
TA = 150°C
TA = 100°C
TA = 25°C
1.E-06
TA = 100°C
TA = 60°C
1.E-07
rN
0.01
1.E-05
D
0.1
ew
TA = 60°C
es
ig
1.E-04
Reverse Current, IR (A)
Forward Current, IF (A)
1
1.E-08
fo
TA = 25°C
0.001
0.4
0.6
0.8
1.E-09
0
IF－VF Typical Characteristics
50
100
150
200
Reverse Voltage, VR(V)
Figure 3-3
IR－VR Typical Characteristics
N
ot
R
ec
o
m
m
Figure 3-2
en
Forward Voltage, VF (V)
1.0
d
0.2
de
0.0
FMKS-DSE Rev.1.0
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6
FMKS Series
3.2.1.2. Power Dissipation Curves (Tj = 150 °C)
7
0.6
3
2
DC
1
0
0.3
ns
4
0.4
0.2
es
ig
5
0.5
0.1
D
Reverse Power Dissipation, PR (W)
0
0
1
2
3
4
5
50
PF－IF(AV)
Sine wave
100
150
200
Reverse Voltage, VR (V)
Figure 3-5
PR－VR
de
3.2.1.3. Derating Curves (Tj = 150 °C)
m
m
4.0
DC
ec
o
3.0
ot
R
2.0
N
1.0
0.0
5.0
Average Forward Current, IF(AV) (A)
en
5.0
Average Forward Current, IF(AV) (A)
d
fo
Figure 3-4
0
rN
Average Forward Current, IF(AV) (A)
ew
Forward Power Dissipation, PF (W)
6
4.0
Sine wave
DC
3.0
2.0
1.0
0.0
120
125
130
135
140
145
150
120
Lead Temperature, TL (°C)
Figure 3-6
IF(AV)－TL (VR = 0 V)
125
130
135
140
145
150
Lead Temperature, TL (°C)
Figure 3-7
FMKS-DSE Rev.1.0
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© SANKEN ELECTRIC CO.,LTD. 2016
IF(AV)－TL (VR = 200 V)
7
FMKS Series
3.2.2
FMKS-2102
3.2.2.1. Typical Characteristics
10
1.E-02
TA = 150°C
TA = 150°C
1.E-03
1
TA = 25°C
0.01
1.E-05
es
ig
0.1
1.E-06
TA = 100°C
TA = 60°C
D
TA = 60°C
ns
1.E-04
Reverse Current, IR (A)
Forward Current, IF (A)
TA = 100°C
rN
ew
1.E-07
TA = 25°C
1.E-08
0.001
0.0
0.2
0.4
0.6
0.8
1.0
Figure 3-9
100
150
200
Reverse Voltage, VR(V)
VR－IR Typical Characteristics
de
d
VF－IF Typical Characteristics
Figure 3-8
50
fo
Forward Voltage, VF (V)
0
en
3.2.2.2. Power Dissipation Curves (Tj = 150 °C)
m
Reverse Power Dissipation, PR (W)
ec
o
12
ot
R
10
6
1
N
Forward Power Dissipation, PF (W)
14
8
1.2
m
16
4
DC
2
0.8
0.6
0.4
0.2
Sine wave
0
0
2
4
6
8
10
0
0
Average Forward Current, IF(AV) (A)
Figure 3-10
PF－IF(AV)
FMKS-DSE Rev.1.0
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Feb.08, 2016
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© SANKEN ELECTRIC CO.,LTD. 2016
50
100
150
200
Reverse Voltage, VR (V)
Figure 3-11
PR－VR
8
FMKS Series
3.2.2.3. Derating Curves (Tj = 150 °C)
10.0
10.0
Sine wave
8.0
2.0
0.0
90
100
110
120
130
140
150
4.0
2.0
0.0
80
110
120
130
140
150
rN
IF(AV)－TL (VR = 0 V)
IF(AV)－TL (VR = 200 V)
fo
Figure 3-13
d
FMKS-2152
en
3.2.3.1. Typical Characteristics
de
3.2.3
100
Lead Temperature, TL (°C)
Lead Temperature, TL (°C)
Figure 3-12
90
ew
80
DC
ns
4.0
6.0
es
ig
DC
6.0
D
Average Forward Current, IF(AV) (A)
Average Forward Current, IF(AV) (A)
8.0
1.E-02
m
100
TA = 150°C
m
1.E-03
ec
o
10
Reverse Current, IR (A)
R
1
0.1
ot
TA = 100°C
TA = 60°C
N
Forward Current, IF (A)
TA = 150°C
0.01
TA = 25°C
0.2
0.4
0.6
0.8
TA = 100°C
1.E-05
TA = 60°C
1.E-06
1.E-07
0.001
0.0
1.E-04
1.0
TA = 25°C
1.E-08
0
VF－IF Typical Characteristics
100
150
200
Reverse Voltage, VR(V)
Forward Voltage, VF (V)
Figure 3-14
50
Figure 3-15
FMKS-DSE Rev.1.0
SANKEN ELECTRIC CO.,LTD.
Feb.08, 2016
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© SANKEN ELECTRIC CO.,LTD. 2016
VR－IR Typical Characteristics
9
FMKS Series
3.2.3.2. Power Dissipation Curves (Tj = 150 °C)
2
5
DC
0
ns
10
1
es
ig
15
1.5
0.5
D
20
Reverse Power Dissipation, PR (W)
0
0
5
10
15
50
PF－IF(AV)
Sine wave
100
150
200
Reverse Voltage, VR (V)
Figure
3-17
PR－VR
de
3.2.3.3. Derating Curves (Tj = 150 °C)
m
12.5
ec
o
m
10.0
DC
R
7.5
ot
5.0
N
2.5
0.0
15.0
12.5
Average Forward Current, IF(AV) (A)
en
15.0
Average Forward Current, IF(AV) (A)
d
fo
Figure 3-16
0
rN
Average Forward Current, IF(AV) (A)
ew
Forward Power Dissipation, PF (W)
25
Sine wave
10.0
DC
7.5
5.0
2.5
0.0
60
70
80
90 100 110 120 130 140 150
60
70
Lead Temperature, TL (°C)
Figure 3-18
IF(AV)－TL (VR = 0 V)
80
90 100 110 120 130 140 150
Lead Temperature, TL (°C)
Figure 3-19
FMKS-DSE Rev.1.0
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© SANKEN ELECTRIC CO.,LTD. 2016
IF(AV)－TL (VR = 200 V)
10
FMKS Series
4.
External Dimensions
d
fo
rN
ew
D
es
ig
ns
TO220F-3L
de
NOTES:
m
Marking Diagram
N
ot
R
ec
o
5.
m
en
● Dimension is in millimeters.
● Lead treatment Pb-free. Device composition compliant with the RoHS directive.
Table 5-1 Specific Device Code
Specific Device Code
Products
KS2052
FMKS-2052
KS2102
FMKS-2102
KS2152
FMKS-2152
Specific Device Code (See Table 5-1)
YMDD
Lot Number
Y is the last digit of year (0 to 9)
M is the month (1 to 9, O, N or D)
DD is a period of days (01 to 31)
1
2
3
FMKS-DSE Rev.1.0
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© SANKEN ELECTRIC CO.,LTD. 2016
11
FMKS Series
6.
● Increasing the accuracy of temperature detection by
reducing the thermal resistance between D S and the
thermistor, it is necessary to attach the thermistor to
DS with high thermal conuctivity material between
them.
Temperature Detection Application of
FMKS Series
This section shows an example about a temperature
detection circuit of a secondary rectifier diode in off-line
flyback converters.
Figure 6-1 shows the reference of temperature
detection circuit with a NTC thermistor. The NTC
thermistor, coupled thermally with DS secondary
rectifier diode, is connected to the REF pin of the output
voltage detection circuit in the converter.
As shown in Figure 6-2, as the temperature rises, the
resistance of the NTC thermistor decreases.
When the temperature of DS rises due to such a cause
as overload state, the resistance of NTC thermistor
decreases, and the ratio of resistance voltage divider is
changed. When the voltage of RS shown in Figure 6-1
reaches the reference voltage of U1 shunt regulator, the
current flows to PC1 optocoupler, and the converter IC
in the primary limits the output power. Thus, the rise of
DS temperature can be limited.
D
es
ig
ns
● The internal structure is formed a Schottky barrier
diode for temperature detection, SBD, and a fast
recovery diode, FRD, on the same die as shown in
Figure 6-3. Thus, the temperature is about the same
between SBD and FRD.
● The temperature detection uses the temperature
characteristics of the leakage current for SBD, which
increases as the temperature rises as shown in Figure
6-4.
The temperature detection circuit with FMKS series
has the following advantages.
ew
DS
OUT
(+)
● Highly accurate and stable temperature detection of
FRD.
● Real time temperature detection of FRD.
● Circuit component reduction such as thermistor, and
easy attachment.
● Power supply downsizing.
rN
T1
In contrast with the temperature detection of
thermistor, the FMKS series can achieve high accuracy
of temperature detection by the following.
NTC
fo
PC1
d
Converter IC
de
FB
REF
U1
U2
SBD
FRD
en
RS
PC1
m
(-)
Reference temperature detection circuit
with NTC thermistor
0
150
Temperature (°C)
Figure 6-2
Reference characteristics of NTC thermistor
(1)
Figure 6-3
The temperature detection circuit with thermistor has
the following issues.
● Since some attachment distance occurs between the
thermistor and DS, the accurate temperature of DS
cannot be detected.
● Thermistor cannot follow the rapid temperature
change.
(2)
(3)
Internal structure of FMKS series
Leakage Current, IR (A)
ec
o
R
N
ot
Resistance (Ω)
m
Figure 6-1
0
150
Temperature (°C)
Figure 6-4
FMKS-DSE Rev.1.0
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© SANKEN ELECTRIC CO.,LTD. 2016
Reference temperature characteristics of
SBD leakage current
12
FMKS Series
Figure 6-5 shows the reference of temperature
detection circuit with FMKS series. The ANODE pin of
SBD for the temperature detection in DS secondary
rectifier diode is connected to the REF pin of the shunt
regulator of the output voltage detection circuit in the
converter.
When the temperature of DS rises due to such a cause
as overload state, the leakage current, IR, of SBD for
temperature detection increases, and the voltage of RS
shown in Figure 6-5 increases. When RS voltage reaches
the reference voltage of U1 shunt regulator, the current
flows to PC1 optocoupler, and the converter IC in the
primary limits the output power. Thus, the rise of DS
temperature can be limited.
3
Reverse Leakage Current,
IR (mA)
3
2
1
0
80
90
115
127
110 120 130
100
140
ns
70
Junction Temperature, Tj (°C)
Figure 6-6 Temperature detection range at IR= 1.0mA
OUT
(+)
DS
max.
typ.
min.
4
es
ig
FMKS series
T1
5
2
Figure 6-7 shows the reference circuit for multioutputs with FMKS series in off-line flyback converter.
In the case that FMKS series and the synchronous
rectification device, QSYN, for the other output are
attached on the same heatsink so that the temperature
from QSYN is conducted to FMKS series, the FMKS
series can detect the temperature in the following.
D
ANODE 1
of SBD
ew
PC1
Converter IC
rN
FB
REF
U1
U2
RS
PC1
de
d
Figure 6-5 Reference temperature detection circuit
with FMKS series.
● The overload state of QSYN.
● The rectification state by the rectifier diode in QSYN
because the synchronous rectification IC malfunctions
and thus QSYN is kept off.
fo
(-)
Synchronous
rectification IC
In Figure 6-5, RS value is calculated as follows.
OUT1
(+)
en
QSYN
m
m
R
ec
o
where,
VREF is the reference voltage of U1 shunt regulator,
IR(TD)MAX is the maximum leakage current of SBD at
the temperature detection value of TD in Figure 6-6
or Section 3.1.
N
ot
When TD is 115 °C, IR(TD)MAX is 1 mA as shown
Figure 6-6. Thus, when VREF is 2.5 V, RS value is 2.5 kΩ,
and thus the FMKS series can detect in the range of
115 °C to 127 °C.
When RS value is chosen 2.7 kΩ from E24 series
close to the above value, IR(TD)MAX is 0.93 mA, and thus
the temperature detection range is 114 °C to 126 °C.
Mount on same heatsink.
T1
DS
3
OUT2
(+)
2
FMKS
PC1
Converter IC
ANODE 1
of SBD
FB
REF
PC1
RS
U1
U2
(-)
Figure 6-7 Reference circuit with FMKS series in the
multi-output flyback converter circuit
When the junction temperature of SBD rises close to
150 °C, the leakage current of SBD increases rapidly
and the power dissipation increases. Thus, RS should be
set so that the temperature is detected in 140 °C or less
including variation.
FMKS-DSE Rev.1.0
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© SANKEN ELECTRIC CO.,LTD. 2016
13
FMKS Series
IMPORTANT NOTES
N
ot
R
ec
o
m
m
en
de
d
fo
rN
ew
D
es
ig
ns
● All data, illustrations, graphs, tables and any other information included in this document as to Sanken’s products listed herein (the
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occurrence of any failure or defect in semiconductor products at a certain rate. You must take, at your own responsibility,
preventative measures including using a sufficient safety design and confirming safety of any equipment or systems in/for which
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Sanken Products and Sanken assumes no responsibility whatsoever for any and all damages and losses that may be suffered by you,
users or any third party, or any possible infringement of any and all property rights including intellectual property rights and any
other rights of you, users or any third party, resulting from the foregoing.
● All technical information described in this document (the “Technical Information”) is presented for the sole purpose of reference
of use of the Sanken Products and no license, express, implied or otherwise, is granted hereby under any intellectual property
rights or any other rights of Sanken.
● Unless otherwise agreed in writing between Sanken and you, Sanken makes no warranty of any kind, whether express or implied,
as to the quality of the Sanken Products (including the merchantability, or fitness for a particular purpose or a special environment
thereof), and any information contained in this document (including its accuracy, usefulness, or reliability).
● In the event of using the Sanken Products, you must use the same after carefully examining all applicable environmental laws and
regulations that regulate the inclusion or use of any particular controlled substances, including, but not limited to, the EU RoHS
Directive, so as to be in strict compliance with such applicable laws and regulations.
● You must not use the Sanken Products or the Technical Information for the purpose of any military applications or use, including
but not limited to the development of weapons of mass destruction. In the event of exporting the Sanken Products or the Technical
Information, or providing them for non-residents, you must comply with all applicable export control laws and regulations in each
country including the U.S. Export Administration Regulations (EAR) and the Foreign Exchange and Foreign Trade Act of Japan,
and follow the procedures required by such applicable laws and regulations.
● Sanken assumes no responsibility for any troubles, which may occur during the transportation of the Sanken Products including
the falling thereof, out of Sanken’s distribution network.
● Although Sanken has prepared this document with its due care to pursue the accuracy thereof, Sanken does not warrant that it is
error free and Sanken assumes no liability whatsoever for any and all damages and losses which may be suffered by you resulting
from any possible errors or omissions in connection with the contents included herein.
● Please refer to the relevant specification documents in relation to particular precautions when using the Sanken Products, and refer
to our official website in relation to general instructions and directions for using the Sanken Products.
FMKS-DSE Rev.1.0
SANKEN ELECTRIC CO.,LTD.
Feb.08, 2016
http://www.sanken-ele.co.jp/en
© SANKEN ELECTRIC CO.,LTD. 2016
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