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March 2015  
FJP2145  
ESBC

™

Rated NPN Power Transistor  
Description  
ESBC Features (FDC655 MOSFET)  
(1)  
The FJP2145 is a low-cost, high-performance power  
switch designed to provide the best performance when  
used in an ESBC

™

configuration in applications such as:  
power supplies, motor drivers, smart grid, or ignition  
switches. The power switch is designed to operate up to  
1100 volts and up to 5 amps, while providing exception-  
ally low on-resistance and very low switching losses.  
V

CS(ON)  

I

C  

Equiv. R

CS(ON)  

0.21 V  
2 A  
0.105
Ω  
• Low
 
Equivalent On Resistance  
• Very
 
Fast Switch: 150 kHz  
• Wide
 
RBSOA: Up to 1100 V  
• Avalanche
 
Rated  
The ESBC

™

switch can be driven using off-the-shelf  
power supply controllers or drivers. The ESBC

™

MOS-  
FET is a low-voltage, low-cost, surface-mount device that  
combines low-input capacitance and fast switching. The  
ESBC

™

configuration further minimizes the required driv-  
ing power because it does not have Miller capacitance.  
• Low
 
Driving Capacitance, No Miller Capacitance  
• Low
 
Switching Losses  
• Reliable
 
HV Switch: No False Triggering due to  
High dv/dt Transients  
Applications  
The FJP2145 provides exceptional reliability and a large  
operating range due to its square reverse-bias-safe-oper-  
ating-area (RBSOA) and rugged design. The device is  
avalanche rated and has no parasitic transistors, so is not  
prone to static dv/dt failures.  
• High-Voltage,
 
High-Speed Power Switch  
• Emitter-Switched
 
Bipolar/MOSFET Cascode  
(ESBC

™

)  
• Smart
 
Meters, Smart Breakers, SMPS,  
HV Industrial Power Supplies  
The power switch is manufactured using a dedicated  
high-voltage bipolar process and is packaged in a high-  
voltage TO-220 package.  
• Motor
 
Drivers and Ignition Drivers  
C
2
C
FJP2145  
FDC655  
B
1
B
TO-220  
1
G
1.Base 2.Collector 3.Emitter  
3
E
S
Figure 1. Pin Configuration  
Figure 2. Internal Schematic Diagram  
Figure 3. ESBC Configuration

(2)  

Ordering Information  
Part Number  
Marking  
Package  
Packing Method  
FJP2145TU  
J2145  
TO-220  
TUBE  
Notes:  
1. Figure of Merit.  
2. Other Fairchild MOSFE
T
s
c
an be used in this ESBC application.  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  

Absolute Maximum Ratings

(3)  

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-  
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-  
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The  
absolute maximum ratings are stress ratings only. Values are at T

A

= 25°C unless otherwise noted.  
Symbol  
V

CBO  

V

CEO  

V

EBO  

I

C  

Parameter  
Value  
Unit  
V
Collector-Base Voltage  
Collector-Emitter Voltage  
Emitter-Base Voltage  
Collector Current  
1100  
800  
V
7
V
5
1.5  
A
I

B  

Base Current  
A
P

C  

Collector Dissipation (T

C

= 25°C)  
Operating and Junction
T
e
mperature Range  
Storage
T
e
mperature Range  
120  
W
°
C  
°
C  
mJ  
T

J  

-55 to +125  
-55 to +150  
15  
T

STG  

EAR

(4)  

Avalanche Energy (T

J

= 25
°
C, 1.2 mH)  
Notes:  
3. Pulse test is pulse width
≤
5 ms, duty cycle
≤
10%.  
4. Lab characterization data only for reference.  
Thermal Characteristics  
Values are at T

A

= 25°C unless otherwise noted.  
Symbol  
R

θ
jC  

Parameter  
Thermal Resistance, Junction to Case  
Thermal Resistance, Junction to Ambient  
Max.  
1.04  
Unit  
°
C/W  
°
C/W  
R

θ
jA  

78.72  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  
2

Electrical Characteristics

(5)  

Values are at T

A

= 25°C unless otherwise noted.  
Symbol  
Parameter  
Conditions  
I

C

= 1 mA, I

E

= 0  
Min. Typ. Max. Unit  
BV

CBO  

Collector-Base Breakdown Voltage  
1100  
800  
7
V
Collector-Emitter Breakdown  
Voltage  
BV

CEO  

I

C

= 5 mA, I

B

= 0  
V
BV

EBO  

I

CBO  

I

EBO  

Emitter-Base Breakdown Voltage  
Collector Cut-off Current  
Emitter Cut-off Current  
I

E

= 1 mA, I

C

= 0  
V
V

CB

= 800
V
, I

E

= 0  
10  
10  
40  
μ
A  
μ
A  
V

EB

= 5
V
, I

C

= 0  
h

FE1  

h

FE2  

V

CE

= 5 V, I

C

= 0.2 A  
V

CE

= 5 V, I

C

= 1 A  
20  
8
DC Current Gain  
I

C

= 0.25 A, I

B

= 0.05 A  
I

C

= 0.5 A, I

B

= 0.167 A  
I

C

= 1 A, I

B

= 0.33 A  
I

C

= 1.5 A, I

B

= 0.3 A  
I

C

= 500 mA, I

B

= 50 mA  
I

C

= 1.5 A, I

B

= 0.3 A  
I

C

= 2 A, I

B

= 0.4 A  
0.049  
0.052  
0.082  
V
V
V

CE

(sat)  
Collector-Emitter Saturation Voltage  
V
0.151 2.000  
0.752  
V
V
V

BE

(sat)  
Base-Emitter Saturation Voltage  
0.833 1.500  
0.855  
V
V
C

IB  

C

OB  

f

T  

Input Capacitance  
V

EB

= 5
V
, I

C

= 0, f = 1 MHz  
V

CB

= 200
V
,
I

E

= 0, f = 1 MHz  
V

CE

= 10
V
,
I

C

= 0.2 A  
1.618  
pF  
pF  
MHz  
Output Capacitance  
11.39  
Current Gain Bandwidth Product  
15  
Note:  
5. Pulse test is pulse width
≤
5 ms, duty cycle
≤
10%.  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  
3

ESBC-Configured Electrical Characteristics

(6)  

Values are at T

A

= 25°C unless otherwise noted.  
Symbol  
Parameter  
Conditions  
I

C

= 0.1 A,V

CE

= 10 V  
Min. Typ. Max. Unit  
Current Gain Bandwidth  
Product  
f

T  

28.40  
MHz  
It

f  

t

s  

Inductive Current Fall Time  
Inductive Storage Time  
95  
0.13  
135  
80  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
V

CC

= 100
V
,
V

GS

= 10 V, R

G

= 4 7
Ω
,  
V

Clamp

= 500
V
,
I

C

= 0.5 A,  
I

B

= 0.05 A, H

FE

= 10, L

C

= 166
μ
H,  
SRF = 684 kHz  
Vt

f  

Vt

r  

t

c  

Inductive Voltage Fall Time  
Inductive Voltage Rise Time  
Inductive Crossover Time  
Inductive Current Fall Time  
Inductive Storage Time  
115  
50  
It

f  

V

CC

= 100
V
,
V

GS

= 10 V, R

G

= 47
Ω
,  
V

Clamp

= 500
V
, I

C

= 1 A,  
I

B

= 0.2 A, H

FE

= 5, L

C

= 166
μ
H,  
SRF = 684 kHz  
t

s  

0.34  
150  
60  
Vt

f  

Vt

r  

t

c  

Inductive Voltage Fall Time  
Inductive Voltage Rise Time  
Inductive Crossover Time  
95  
Maximum Collector-Source  
Voltage at Turn-off without  
Snubber  
h

FE

= 5, I

C

= 2 A  
V

CSW  

1100  
V
Gate-Source Leakage  
Current  
V

GS

= ± 20 V  
I

GS(OS)  

1
nA  
V

GS

= 10
V
, I

C

= 2 A, I

B

= 0.67 A, h

FE

= 3  
V

GS

= 10
V
, I

C

= 1 A, I

B

= 0.33 A, h

FE

= 3  
V

GS

= 10 V, I

C

= 0.5 A, I

B

= 0.17 A, h

FE

= 3  
V

GS

= 10 V, I

C

= 0.3 A, I

B

= 0.06 A, h

FE

= 5  
V

BS

= V

GS,

I

B

= 250
μ
A  
0.202  
0.111  
0.067  
0.060  
1.9  
V
V
V
V
V
Collector-Source On  
Voltage  
V

CS(ON)  

V

GS(th)  

C

iss  

Q

GS(tot)  

Gate Threshold Voltage  
Input Capacitance  
(V

GS

= V

CB

= 0)  
V

CS

= 25 V, f = 1 MHz  
470  
9
pF  
nC  
Gate-Source Change  
V

CB

= 0  
V

GS

= 10 V, I

C

= 6.3 A, V

CS

= 25 V  

GS

= 10
V
, I

D

= 6.3 A  
V
21  
26  
30  
m
Ω  
m
Ω  
m
Ω  
Static Drain-to-Source  
On Resistance  
V

GS

= 4.5 V, I

D

= 5.5 A  
R

DS(ON)  

V

GS

= 10
V
, I

D

= 6.3 A, T

J

= 125°C  
Note:  
6. A typical FDC655 MOSFET was used for the specifications above. Values could vary if other Fairchild MOSFE
T
s  
are used.  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  
4

Typical Performance Characteristics  
5
100  
10  
1
V

C
E

= 5 V  
I

B

= 1 A  
4
0.9 A  
0.8 A  
0.7 A  
0.6 A  
3
0.5 A  
0.4 A  
0.3 A  
2
0.2 A  
0.1 A  
1
2
5

o

C  
25

o

C  
-25

o

C  
-40

o

C  
1
0
0
1
2
3
4
5
6
7
1E-3  
0.01  
0.1  
1
10  
V

CE

[V], COLLECTOR-EMITTER VOLTAGE  
I

C

[A], COLLECTOR CURRENT  
Figure 4. Static Characteristics  
Figure 5. DC Current Gain  
10  
10  
HFE = 5  
HFE = 3  
1
1
0.1  
0.1  
0.01  
o
o
125  
C
125

o  

25

o  

C
C
25  
– 25  
–
40  
C
C
C
-25

o  

-40

o  

C
C
o
o
0.01  
1E-3  
0.01  
0.1  
1
10  
1E-3  
0.01  
0.1  
1
10  
I

C

[A], COLLECTOR CURRENT  
I

C

[A], COLLECTOR CURRENT  
Figure 6. Collector-Emitter Saturation Voltage  
h

FE

= 3  
Figure 7. Collector-Emitter Saturation Voltage  
h

FE

= 5  
10  
10  
HFE = 20  
HFE = 10  
1
1
0.1  
0.1  
125

o  

25

o  

-25

o  

-40

o  

C
C
C
C
125

o

C  
25

o  

C
0.01  
1E-3  
0.01  
1E-3  
0.01  
0.1  
1
10  
0.01  
0.1  
1
10  
I

C

[A], COLLECTOR CURRENT  
I

C

[A], COLLECTOR CURRENT  
Figure 8. Collector-Emitter Saturation Voltage  
h

FE

= 10  
Figure 9. Collector-Emitter Saturation Voltage  
h

FE

= 20  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  
5

Typical Performance Characteristics
(Continued)  
1000  
100  
10  
2.0  
1.8  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
I

C

= 0.4 A  
0.4  
0.2  
0.0  
I

C

= 1 A  
I

C

= 2 A  
I

C

= 3 A  
1
0.01  
0.1  
1
1
10  
100  
1000  
COLLECTOR-BASE VOLTAGE[V]  
I

B

[mA], BASE CURRENT  
Figure 10. Typical Collector Saturation Voltage  
Figure 11. Capacitance  
150  
H

FE

=5, 10, T

J

= 25

o

C, L=166 uH, SRF=684 KHz  
H

FE

= 5, 10, T

J

= 25

o

C, L=166 uH SRF = 684 KHz, 2I

B

1=I

B

2, No peaking  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
125  
tf hfe = 5 Common Emitter  
tf hfe = 10 Common Emitter  
tf hfe = 5 ESBC  
100  
tf hfe = 5 Common Emitter  
tf hfe = 10 Common Emitter  
tf hfe = 5 ESBC  
tf hfe = 10 ESBC  
tf hfe = 10 ESBC  
75  
50  
25  
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
I

C

[A], COLLECTOR CURRENT  
I

C

[A], COLLECTOR CURRENT  
Figure 12. Inductive Load Collector Current  
Fall – Time (t

f

)  
Figure 13. Inductive Load Collector Current  
Storage – Time (t

stg  

)
180  
H

FE

=5, 10, T

J

= 25

o

C, L=166 uH, SRF=684 KHz  
H

FE

=5, 10, T

J

= 25

o

C, L=166 uH, SRF=684 KHz  
500  
450  
400  
350  
300  
250  
200  
150  
100  
50  
160  
140  
tf hfe = 5 Common Emitter  
tf hfe = 10 Common Emitter  
tf hfe = 5 ESBC  
tf hfe = 10 ESBC  
tf hfe = 5 Common Emitter  
tf hfe = 10 Common Emitter  
tf hfe = 5 ESBC  
tf hfe = 10 ESBC  
120  
0.5  
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
I

C

[A], COLLECTOR CURRENT  
I

C

[A], COLLECTOR CURRENT  
Figure 14. Inductive Load Collector Voltage  
Fall – Time (t

f

)  
Figure 15. Inductive Load Collector Voltage  
Rise – Time (t

r

)  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  
6

Typical Performance Characteristics
(Continued)  
7
6
5
4
3
2
1
H

FE

=5, 10, T

J

= 25

o

C, L=166 uH, SRF=684 KHz  
600  
V

DD

= +/- 50 V, R

LOAD

= OPEN, H

FE

=4  
550  
500  
450  
tf hfe = 5 Common Emitter  
tf hfe = 10 Common Emitter  
tf hfe = 5 ESBC  
tf hfe = 10 ESBC  
400  
350  
300  
250  
200  
150  
100  
50  
600 700 800 900
 
1000 1100 1200 1300 1400 1500 1600 1700  
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
V

CE

[V], COLLECTOR-EMITTER VOLTAGE  
I

C

[A], COLLECTOR CURRENT  
Figure 16. Inductive Load Collector Current / Voltage  
Crossover (t

c

)  
Figure 17. BJT RBSOA  
7
T

C

= 25

o

C  
V

DD

= +/-50 V, R

LOAD

= Open, H

FE

= 4  
Single 80
μ
s Pulse  
6
5
4
3
2
1
10  
1
0
0.1  
600 700 800 900
 
1000 1100 1200 1300 1400 1500 1600 1700  
0
500  
1000  
1500  
2000  
V

CE

[V], COLLECTOR-EMITTER VOLTAGE  
V

CE

[V], COLLECTOR-EMITTER VOLTAGE  
Figure 18. ESBC RBSOA  
Figure 19. Crossover FBSOA  
150  
120  
90  
60  
30  
0
0
25  
50  
75  
100  
125  
150  
175  
T

C

[

o

C], CASE TEMPERATURE  
Figure 20. Power Derating  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  
7

Test Circuits  
ꢀ
ꢀ
ꢀ
Figure 21. Test Circuit For Inductive Load and Reverse Bias Safe Operating  
}ŠŠ  
}ŠŠ  
sT“–ˆ‹  
sT“–ˆ‹  
}•  
A
p

j  

p

i  

A
p

j  

k|{  
A
k|{  
RG}  
ꢀ
ꢀ
ꢀ
ꢀ
Figure 22. Energy Rating Test Circuit  
Figure 24. FBSOA  
Figure 23. Ft Measurement  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  
8

Test Circuits
(Continued)  
Figure 25. Simplified Saturated Switch Driver Circuit  
Functional Test Waveforms  
Figure 26. Crossover Time Measurement  
t

off  

90% Vce  
90% Ic  
10% Vce  
10% Ic  
Figure 27. Saturated Switching Waveform  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  
9

Functional Test Waveforms
(Continued)  
Figure 29. Storage Time – ESBC FET Gate (Off) to I

C  

Fall – Time  
Figure 28. Storage Time – Common Emitter Base  
Turn Off (Ib2) to I

C

Fall – Time  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  
10  

Very Wide Input Voltage Range Supply  
24V@3.3A  
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X
Y
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XWWWœm  
Z}  
XWWWœm  
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X
100 – 800V DC  
30Watts  
X
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^
[
Y
Y
Z
|m[WW^  
100k
Ω  
Z
w]rl[[Wh  
680
μ
F  
[W}  
twX]W_i[^Xh  
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YL  
100k
Ω  
FJP2145  
m
Xu[X[_  
100k
Ω  
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]
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680
μ
F  
[W}  
}ŠŠ  
FDC655  
v|{  
z  
o}  
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100
k
Ω  
ttzkZW^W  
XYTX[}–“›š  
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[
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kl{  
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XY}¡  
100k
Ω  
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[}–“›š  
680
μ
F  
[W}  
Xu[X[_~z  
XWWœm  
Y}  
100k
Ω  
2.5A limit  
QGtˆ’ŒGš–™›GˆšG—–šš‰“Œ  
Figure 30. 30 W; Secondary-Side Regulation: 3 Capacitor Input; Quasi Resonant  
Driving ESBC Switches  
Fairchild  
Proprietary  
Figure 31. V

CC

Derived  
Figure 33. Proportional Drive  
Figure 32. V

BIAS

Supply Derived  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  
11  

Physical Dimensions  
Figure 34. TO-220, MOLDED, 3-LEAD, JEDEC VARIDATION AB  
© 2013 Fairchild Semiconductor Corporation  
FJP2145 Rev. 1.1  
12  

TRADEMARKS  
The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not  
intended to be an exhaustive list of all such trademarks.  
OPTOPLANAR

®  

AccuPower
¥
 
AttitudeEngine™  
Awinda

®  

F-PFS
¥  
®*  
FRFET

®  

Global Power Resource

SM  

GreenBridge
¥  
Green FPS
¥  
Green FPS
¥
e-Series
¥  
G
max
¥  
TinyBoost

®  

TinyBuck

®  

TinyCalc
¥  
TinyLogic

®  

TINYOPTO
¥  
TinyPower
¥  
TinyPWM
¥  
TinyWire
¥  
TranSiC
¥  
®
AX-CAP

®

*  
PowerTrench

®  

PowerXS™  
Programmable Active Droop
¥  
QFET

®  

BitSiC
¥  
Build it Now
¥  
CorePLUS
¥  
CorePOWER
¥  
CROSSVOLT
¥  
CTL
¥  
GTO
¥  
IntelliMAX
¥  
QS
¥  
Quiet Series
¥  
RapidConfigure
¥  
¥
ISOPLANAR
¥  
Making Small Speakers Sound Louder  
and Better™  
MegaBuck
¥  
MICROCOUPLER
¥  
MicroFET
¥  
Current Transfer Logic
¥  
DEUXPEED

®  

Dual Cool™  
EcoSPARK

®  

EfficientMax
¥  
TriFault Detect
¥  
TRUECURRENT

®

*  
μ
SerDes
¥  
Saving our world, 1mW/W/kW at a time™  
SignalWise
¥  
SmartMax
¥  
SMART START
¥  
Solutions for Your Success
¥  
SPM

®  

ESBC
¥  
MicroPak
¥  
®
UHC

®  

MicroPak2
¥  
MillerDrive
¥  
MotionMax
¥  
MotionGrid

®  

Ultra FRFET
¥  
UniFET
¥  
VCX
¥  
VisualMax
¥  
VoltagePlus
¥  
XS™  
Fairchild

®  

STEALTH
¥  
Fairchild Semiconductor

®  

FACT Quiet Series
¥  
FACT

®  

SuperFET

®  

SuperSOT
¥
-3  
MTi

®  

SuperSOT
¥
-6  
SuperSOT
¥
-8  
SupreMOS

®  

MTx

®  

FAST

®  

MVN

®  

FastvCore
¥  
FETBench
¥  
FPS
¥  
mWSaver

®  

Xsens™  
SyncFET
¥  
Sync-Lock™  
OptoHiT
¥  
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™
OPTOLOGIC

®  

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