JFET Switching

MPF4392, MPF4393
JFET Switching Transistors
N−Channel − Depletion
Features
• Pb−Free Packages are Available*
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2 SOURCE
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Drain −Source Voltage
VDS
30
Vdc
Drain −Gate Voltag
VDG
30
Vdc
Gate−Source Voltage
VGS
30
Vdc
Forward Gate Current
IG(f)
50
mAdc
Total Device Dissipation
@ TA = 25°C
Derate above 25°C
PD
350
2.8
mW
mW/°C
−65 to +150
°C
Operating and Storage Channel
Temperature Range
Tchannel,
Tstg
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
3
GATE
1 DRAIN
1
12
3
STRAIGHT LEAD
BULK PACK
TO−92 (TO−226AA)
CASE 29−11
STYLE 5
2
3
BENT LEAD
TAPE & REEL
AMMO PACK
MARKING DIAGRAM
MPF
439x
AYWW G
G
MPF439x = Device Code
x = 2 or 3
A
= Assembly Location
Y
= Year
WW
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
MPF4392
MPF4392G
MPF4393
MPF4393G
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2012
February, 2012 − Rev. 6
1
MPF4393RLRP
MPF4393RLRPG
Package
Shipping†
TO−92
1000 Units / Bulk
TO−92
(Pb−Free)
1000 Units / Bulk
TO−92
1000 Units / Bulk
TO−92
(Pb−Free)
1000 Units / Bulk
TO−92
1000 / Ammo Box
TO−92
(Pb−Free)
1000 / Ammo Box
Publication Order Number:
MPF4392/D
MPF4392, MPF4393
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Unit
30
−
−
Vdc
−
−
−
−
1.0
0.2
nAdc
mAdc
−
−
−
−
1.0
1.0
nAdc
mAdc
−2.0
−0.5
−
−
−5.0
−3.0
25
5.0
−
−
75
30
−
−
−
−
0.4
0.4
−
−
−
−
60
100
−
−
17
12
−
−
−
−
−
−
60
100
−
6.0
10
−
−
2.5
3.2
3.5
−
−
−
2.0
2.5
5.0
5.0
−
−
15
29
20
35
−
−
4.0
6.5
15
15
−
−
20
37
35
55
OFF CHARACTERISTICS
Gate −Source Breakdown Voltage
(IG = −1.0 mAdc, VDS = 0)
V(BR)GSS
Gate Reverse Current
(VGS = −15 Vdc, VDS = 0)
(VGS = −15 Vdc, VDS = 0, TA = 100°C)
IGSS
Drain−Cutoff Current
(VDS = 15 Vdc, VGS = −12 Vdc)
(VDS = 15 Vdc, VGS = −12 Vdc, TA = 100°C)
ID(off)
Gate Source Voltage
(VDS = 15 Vdc, ID = 10 nAdc)
MPF4392
MPF4393
VGS
Vdc
ON CHARACTERISTICS
Zero −Gate −Voltage Drain Current (Note 1)
(VDS = 15 Vdc, VGS = 0)
MPF4392
MPF4393
Drain−Source On−Voltage
(ID = 6.0 mAdc, VGS = 0)
(ID = 3.0 mAdc, VGS = 0)
MPF4392
MPF4393
Static Drain−Source On Resistance
(ID = 1.0 mAdc, VGS = 0)
MPF4392
MPF4393
IDSS
VDS(on)
rDS(on)
mAdc
Vdc
W
SMALL−SIGNAL CHARACTERISTICS
Forward Transfer Admittance
(VDS = 15 Vdc, ID = 25 mAdc, f = 1.0 kHz)
(VDS = 15 Vdc, ID = 5.0 mAdc, f = 1.0 kHz)
MPF4392
MPF4393
Drain−Source “ON” Resistance
(VGS = 0, ID = 0, f = 1.0 kHz)
MPF4392
MPF4393
|yfs|
rds(on)
Input Capacitance (VGS = 15 Vdc, VDS = 0, f = 1.0 MHz)
Ciss
Reverse Transfer Capacitance
(VGS = 12 Vdc, VDS = 0, f = 1.0 MHz)
(VDS = 15 Vdc, ID = 10 mAdc, f = 1.0 MHz)
Crss
mmhos
W
pF
pF
SWITCHING CHARACTERISTICS
Rise Time (See Figure 2)
(ID(on) = 6.0 mAdc)
(ID(on) = 3.0 mAdc)
MPF4392
MPF4393
Fall Time (See Figure 4)
(VGS(off) = 7.0 Vdc)
(VGS(off) = 5.0 Vdc)
MPF4392
MPF4393
Turn−On Time (See Figures 1 and 2)
(ID(on) = 6.0 mAdc)
(ID(on) = 3.0 mAdc)
MPF4392
MPF4393
Turn−Off Time (See Figures 3 and 4)
(VGS(off) = 7.0 Vdc)
(VGS(off) = 5.0 Vdc)
MPF4392
MPF4393
1. Pulse Test: Pulse Width v 300 ms, Duty Cycle v 3.0%.
http://onsemi.com
2
tr
tf
ton
toff
ns
ns
ns
ns
MPF4392, MPF4393
TYPICAL SWITCHING CHARACTERISTICS
1000
TJ = 25°C
500
200
RK = RD′
MPF4392
MPF4393
500
VGS(off) = 7.0 V
= 5.0 V
100
50
20
10
5.0
RK = 0
5.0 7.0 10
2.0 3.0
ID, DRAIN CURRENT (mA)
20
30
50
20
10
1.0
0.5 0.7 1.0
50
5.0 7.0 10
2.0 3.0
ID, DRAIN CURRENT (mA)
20
30
50
1000
MPF4392
MPF4393
200
500
VGS(off) = 7.0 V
= 5.0 V
TJ = 25°C
RK = RD′
MPF4392
MPF4393
200
t f , FALL TIME (ns)
t d(off) , TURN-OFF DELAY TIME (ns)
RK = 0
Figure 2. Rise Time
TJ = 25°C
500
100
RK = RD′
20
10
RK = 0
VGS(off) = 7.0 V
= 5.0 V
100
50
20
RK = 0
10
5.0
2.0
2.0
1.0
0.5 0.7 1.0
VGS(off) = 7.0 V
= 5.0 V
2.0
1000
5.0
MPF4392
MPF4393
100
Figure 1. Turn−On Delay Time
50
TJ = 25°C
5.0
2.0
1.0
0.5 0.7 1.0
RK = RD′
200
t r , RISE TIME (ns)
t d(on), TURN-ON DELAY TIME (ns)
1000
2.0 3.0
5.0 7.0 10
ID, DRAIN CURRENT (mA)
20
30
1.0
0.5 0.7 1.0
50
Figure 3. Turn−Off Delay Time
5.0 7.0 10
2.0 3.0
ID, DRAIN CURRENT (mA)
Figure 4. Fall Time
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3
20
30
50
MPF4392, MPF4393
NOTE 1
The switching characteristics shown above were measured using a
test circuit similar to Figure 5. At the beginning of the switching
interval, the gate voltage is at Gate Supply Voltage (−VGG). The
Drain−Source Voltage (VDS) is slightly lower than Drain Supply
Voltage (VDD) due to the voltage divider. Thus Reverse Transfer
Capacitance (Crss) or Gate−Drain Capacitance (Cgd) is charged to
VGG + VDS.
During the turn−on interval, Gate−Source Capacitance (Cgs)
OUTPUT
discharges through the series combination of RGen and RK. Cgd
must discharge to VDS(on) through RG and RK in series with the
parallel combination of effective load impedance (R′D) and
Drain−Source Resistance (rds). During the turn−off, this charge
flow is reversed.
Predicting turn−on time is somewhat difficult as the channel
resistance rds is a function of the gate−source voltage. While Cgs
discharges, VGS approaches zero and rds decreases. Since Cgd
discharges through rds, turn−on time is non−linear. During turn−off,
the situation is reversed with rds increasing as Cgd charges.
The above switching curves show two impedance conditions:
1) RK is equal to RD′ which simulates the switching behavior of
cascaded stages where the driving source impedance is normally the
load impedance of the previous stage, and 2) RK = 0 (low
impedance) the driving source impedance is that of the generator.
VDD
RD
SET VDS(off) = 10 V
INPUT
RK
RT
RGEN
50 W
RGG
50
W
VGEN
50
W
VGG
INPUT PULSE
tr ≤ 0.25 ns
tf ≤ 0.5 ns
PULSE WIDTH = 2.0 ms
DUTY CYCLE ≤ 2.0%
RGG & RK
RD′ = RD(RT + 50)
RD + RT + 50
15
20
MPF4392
10
C, CAPACITANCE (pF)
y fs , FORWARD TRANSFER ADMITTANCE (mmhos)
Figure 5. Switching Time Test Circuit
10
MPF4393
7.0
5.0
Tchannel = 25°C
VDS = 15 V
3.0
Cgs
7.0
5.0
Cgd
Tchannel = 25°C
(Cds IS NEGLIGIBLE)
3.0
2.0
1.5
2.0
0.5 0.7 1.0
5.0 7.0 10
2.0 3.0
ID, DRAIN CURRENT (mA)
20
30
1.0
0.03 0.05
50
0.1
30
2.0
200
IDSS
= 10
160 mA
25
mA
50 mA
75 mA 100 mA
125 mA
rds(on) , DRAIN-SOURCE ON-STATE
RESISTANCE (NORMALIZED)
rds(on) , DRAIN-SOURCE ON-STATE
RESISTANCE (OHMS)
10
Figure 7. Typical Capacitance
Figure 6. Typical Forward Transfer Admittance
120
80
40
Tchannel = 25°C
0
0.3 0.5 1.0
3.0 5.0
VR, REVERSE VOLTAGE (VOLTS)
0
1.0
2.0
3.0
5.0
4.0
6.0
VGS, GATE-SOURCE VOLTAGE (VOLTS)
7.0
8.0
1.8
ID = 1.0 mA
VGS = 0
1.6
1.4
1.2
1.0
0.8
0.6
0.4
-70
-40
-10
20
50
80
110
Tchannel, CHANNEL TEMPERATURE (°C)
140
Figure 9. Effect of Temperature On
Drain−Source On−State Resistance
Figure 8. Effect of Gate−Source Voltage
On Drain−Source Resistance
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4
170
MPF4392, MPF4393
90
10
Tchannel = 25°C
80
70
8.0
7.0
rDS(on) @ VGS = 0
60
50
NOTE 2
9.0
6.0
VGS(off)
5.0
40
4.0
30
3.0
20
2.0
10
1.0
0
0
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
IDSS, ZERO-GATE VOLTAGE DRAIN CURRENT (mA)
Figure 10. Effect of IDSS On Drain−Source
Resistance and Gate−Source Voltage
V GS , GATE-SOURCE VOLTAGE
(VOLTS)
r ds(on), DRAIN-SOURCE ON-STATE
RESISTANCE (OHMS)
100
The Zero−Gate−Voltage Drain Current (IDSS), is the
principle determinant of other J−FET characteristics.
Figure 10 shows the relationship of Gate−Source Off
Voltage (VGS(off)) and Drain−Source On Resistance
(rds(on)) to IDSS. Most of the devices will be within ±10%
of the values shown in Figure 10. This data will be useful
in predicting the characteristic variations for a given part
number.
For example:
Unknown
rds(on) and VGS range for an MPF4392
The electrical characteristics table indicates that an
MPF4392 has an IDSS range of 25 to 75 mA. Figure 10
shows rds(on) = 52 W for IDSS = 25 mA and 30 W for IDSS
75 mA. The corresponding VGS values are 2.2 V and
4.8 V.
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5
MPF4392, MPF4393
PACKAGE DIMENSIONS
TO−92 (TO−226)
CASE 29−11
ISSUE AM
A
B
STRAIGHT LEAD
BULK PACK
R
P
L
SEATING
PLANE
K
D
X X
G
J
H
V
C
SECTION X−X
N
1
N
BENT LEAD
TAPE & REEL
AMMO PACK
B
P
T
SEATING
PLANE
G
K
D
X X
J
V
1
DIM
A
B
C
D
G
H
J
K
L
N
P
R
V
INCHES
MIN
MAX
0.175
0.205
0.170
0.210
0.125
0.165
0.016
0.021
0.045
0.055
0.095
0.105
0.015
0.020
0.500
--0.250
--0.080
0.105
--0.100
0.115
--0.135
---
MILLIMETERS
MIN
MAX
4.45
5.20
4.32
5.33
3.18
4.19
0.407
0.533
1.15
1.39
2.42
2.66
0.39
0.50
12.70
--6.35
--2.04
2.66
--2.54
2.93
--3.43
---
STYLE 5:
PIN 1. DRAIN
2. SOURCE
3. GATE
A
R
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. CONTOUR OF PACKAGE BEYOND DIMENSION R
IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN P AND
BEYOND DIMENSION K MINIMUM.
C
N
SECTION X−X
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. CONTOUR OF PACKAGE BEYOND
DIMENSION R IS UNCONTROLLED.
4. LEAD DIMENSION IS UNCONTROLLED IN P
AND BEYOND DIMENSION K MINIMUM.
DIM
A
B
C
D
G
J
K
N
P
R
V
MILLIMETERS
MIN
MAX
4.45
5.20
4.32
5.33
3.18
4.19
0.40
0.54
2.40
2.80
0.39
0.50
12.70
--2.04
2.66
1.50
4.00
2.93
--3.43
---
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MPF4392/D