MTD2955ET4 [ONSEMI]

12A, 60V, 0.3ohm, P-CHANNEL, Si, POWER, MOSFET, CASE 369A-13, DPAK-3;
MTD2955ET4
型号: MTD2955ET4
厂家: ONSEMI    ONSEMI
描述:

12A, 60V, 0.3ohm, P-CHANNEL, Si, POWER, MOSFET, CASE 369A-13, DPAK-3

开关 脉冲 晶体管
文件: 总12页 (文件大小:107K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
MTD2955E  
Preferred Device  
TMOS E−FET. Power Field  
Effect Transistor DPAK for  
Surface Mount  
P−Channel Enhancement−Mode Silicon  
Gate  
http://onsemi.com  
TMOS POWER FET  
12 AMPERES  
60 VOLTS  
This advanced TMOS E−FET is designed to withstand high energy  
in the avalanche and commutation modes. The new energy efficient  
design also offers a drain−to−source diode with a fast recovery time.  
Designed for low voltage, high speed switching applications in power  
supplies, converters and PWM motor controls, these devices are  
particularly well suited for bridge circuits where diode speed and  
commutating safe operating areas are critical and offer additional  
safety margin against unexpected voltage transients.  
R
DS(on) = 0.3 W  
D
Avalanche Energy Specified  
Source−to−Drain Diode Recovery Time Comparable to a Discrete  
Fast Recovery Diode  
G
S
Diode is Characterized for Use in Bridge Circuits  
I  
and V  
Specified at Elevated Temperature  
DSS  
DS(on)  
MARKING  
Surface Mount Package Available in 16 mm, 13 inch /  
2500 Unit Tape & Reel, Add T4 Suffix to Part Number  
Replaces the MTD2955  
DIAGRAM  
YWW  
xxxxxxxx  
DPAK  
SUFFIX  
CASE 369A  
Style 2  
xxxxxxxxx = Specific Device Code  
Y
= Year  
WW  
= Work Week  
ORDERING INFORMATION  
Device  
Package  
Shipping  
MTD2955ET4  
DPAK  
2500/ Tape &  
Reel  
Preferred devices are recommended choices for future use  
and best overall value.  
Semiconductor Components Industries, LLC, 2003  
1
Publication Order Number:  
April, 2003 − Rev. 5  
MTD2955E/D  
MTD2955E  
MAXIMUM RATINGS (T = 25°C Unless Otherwise Noted)  
C
Rating  
Symbol  
Value  
60  
Unit  
Vdc  
Vdc  
Drain−Source Voltage  
V
DSS  
DGR  
Drain−Gate Voltage (R = 1.0 MW)  
V
V
60  
GS  
Gate−Source Voltage  
− Continuous  
V
GS  
$ 15  
Vdc  
Vpk  
− Non−Repetitive (t 10 ms)  
$ 25  
p
GSM  
Drain Current − Continuous  
I
I
12  
7.0  
36  
Adc  
Apk  
D
D
− Continuous @ 100°C  
− Single Pulse (t v 10 ms)  
I
p
DM  
Total Power Dissipation  
P
75  
0.6  
1.75  
Watts  
W/°C  
Watts  
D
Derate above 25°C  
Total Power Dissipation @ T = 25°C, When Mounted to Minimum Recommended Pad Size  
A
Operating and Storage Temperature Range  
T , T  
55 to 150  
216  
°C  
J
stg  
Single Pulse Drain−to−Source Avalanche Energy − Starting T = 25°C  
E
AS  
mJ  
J
(V = 25 Vdc, V = 10 Vdc, I = 12 Apk, L = 3.0 mH, R = 25 W)  
DD  
GS  
L
G
Thermal Resistance  
°C/W  
°C  
Junction−to−Case  
Junction−to−Ambient  
Junction−to−Ambient, When Mounted to Minimum Recommended Pad Size  
R
R
R
1.67  
100  
71.4  
q
JC  
JA  
JA  
q
q
Maximum Temperature for Soldering Purposes, 1/8” From Case for 10 Seconds  
T
260  
L
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2
MTD2955E  
ELECTRICAL CHARACTERISTICS (T = 25°C Unless Otherwise Noted)  
J
Characteristic  
OFF CHARACTERISTICS  
Symbol  
Min  
Typ  
Max  
Unit  
Drain−Source Breakdown Voltage  
V
(BR)DSS  
(V = 0 Vdc, I = 250 mAdc)  
60  
85  
Vdc  
mV/°C  
GS  
D
Temperature Coefficient (Positive)  
Zero Gate Voltage Drain Current  
I
mAdc  
DSS  
GSS  
(V = 60 Vdc, V = 0 Vdc)  
10  
100  
DS  
GS  
(V = 60 Vdc, V = 0 Vdc, T = 125°C)  
DS  
GS  
J
Gate−Body Leakage Current (V = ±15 Vdc, V = 0)  
I
100  
nAdc  
GS  
DS  
ON CHARACTERISTICS (Note 1)  
Gate Threshold Voltage  
V
GS(th)  
(V = V , I = 250 mAdc)  
2.0  
3.0  
4.0  
Vdc  
mV/°C  
DS  
GS  
D
Temperature Coefficient (Negative)  
Static Drain−Source On−Resistance (V = 10 Vdc, I = 6.0 Adc)  
R
V
0.26  
0.30  
Ohm  
Vdc  
GS  
D
DS(on)  
Drain−Source On−Voltage (V = 10 Vdc)  
GS  
DS(on)  
(I = 12 Adc)  
(I = 6.0 Adc, T = 125°C)  
D
4.3  
3.8  
D
J
Forward Transconductance (V = 13 Vdc, I = 6.0 Adc)  
g
FS  
3.0  
4.8  
mhos  
pF  
DS  
D
DYNAMIC CHARACTERISTICS  
Input Capacitance  
C
565  
225  
45  
700  
315  
100  
iss  
(V = 25 Vdc, V = 0 Vdc,  
DS  
GS  
Output Capacitance  
C
oss  
f = 1.0 MHz)  
Reverse Transfer Capacitance  
C
rss  
SWITCHING CHARACTERISTICS (Note 2)  
Turn−On Delay Time  
t
9.0  
39  
20  
80  
35  
20  
32  
ns  
d(on)  
(V = 30 Vdc, I = 12 Adc,  
Rise Time  
t
r
DD  
D
V
R
= 10 Vdc,  
= 9.1 W)  
GS  
Turn−Off Delay Time  
Fall Time  
t
17  
d(off)  
G
t
f
8.0  
16  
Gate Charge  
(Figure 8)  
Q
T
Q
1
Q
2
Q
3
nC  
3.0  
6.0  
5.0  
(V = 48 Vdc, I = 12 Adc,  
DS  
D
V
GS  
= 10 Vdc)  
SOURCE−DRAIN DIODE CHARACTERISTICS  
Forward On−Voltage (Note 1)  
V
Vdc  
ns  
SD  
(I = 12 Adc, V = 0 Vdc)  
S
GS  
2.2  
1.8  
3.8  
(I = 12 Adc, V = 0 Vdc, T = 125°C)  
S
GS  
J
Reverse Recovery Time  
(Figure 14)  
t
100  
75  
rr  
t
a
(I = 12 Adc, V = 0 Vdc,  
S
GS  
dI /dt = 100 A/ms)  
S
t
25  
b
Q
0.475  
mC  
RR  
INTERNAL PACKAGE INDUCTANCE  
Internal Drain Inductance  
(Measured from the drain lead 0.25from package to center of die)  
L
4.5  
7.5  
nH  
D
Internal Source Inductance  
L
S
(Measured from the source lead 0.25” from package to source bond pad)  
1. Pulse Test: Pulse Width 300 ms, Duty Cycle 2%.  
2. Switching characteristics are independent of operating junction temperature.  
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3
MTD2955E  
TYPICAL ELECTRICAL CHARACTERISTICS  
−ꢀ24  
−ꢀ18  
−ꢀ12  
−ꢀ6  
−ꢀ24  
V
=ꢀ10ꢀV  
T = 25°C  
V
DS  
10 V  
GS  
J
T = −ꢀ55°C  
J
9 V  
−ꢀ20  
−ꢀ16  
−12  
−ꢀ8  
−ꢀ4  
0
8 V  
7 V  
25°C  
100°C  
6 V  
5 V  
0
0
−1  
−2  
−ꢀ3 −ꢀ4  
−ꢀ5 −ꢀ6  
−ꢀ7 −ꢀ8  
−ꢀ9 −10  
−2  
−ꢀ3  
−ꢀ4  
−ꢀ5  
−ꢀ6  
−ꢀ7  
−ꢀ8  
−ꢀ9  
−ꢀ10  
V
DS  
, DRAIN−TO−SOURCE VOLTAGE (VOLTS)  
V , GATE−TO−SOURCE VOLTAGE (VOLTS)  
GS  
Figure 1. On−Region Characteristics  
Figure 2. Transfer Characteristics  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.48  
0.44  
0.40  
V
= 10 V  
GS  
T = 25°C  
J
T = 100°C  
J
V
GS  
=ꢀ10ꢀV  
0.36  
0.32  
0.28  
0.24  
0.20  
25°C  
15 V  
−ꢀ55°C  
0.2  
0.1  
0
−ꢀ2 −ꢀ4 −ꢀ6 −ꢀ8 −10 −12 −14 −16 −ꢀ18 −ꢀ20 −ꢀ22 −ꢀ24  
0
−ꢀ2 −ꢀ4 −ꢀ6 −ꢀ8 −10 −12 −14 −16 −18 −ꢀ20 −ꢀ22 −ꢀ24  
I , DRAIN CURRENT (AMPS)  
D
I , DRAIN CURRENT (AMPS)  
D
Figure 3. On−Resistance versus Drain Current  
and Temperature  
Figure 4. On−Resistance versus Drain Current  
and Gate Voltage  
1.8  
1.6  
1.4  
1.2  
1000  
100  
10  
V
=ꢀ0ꢀV  
GS  
V
= 10 V  
GS  
=ꢀ6 A  
I
D
T = 125°C  
J
100°C  
25°C  
1.0  
0.8  
0.6  
−ꢀ50  
−ꢀ25  
0
25  
50  
75  
100  
125  
150  
−15 −ꢀ20 −ꢀ25 −ꢀ30 −ꢀ35 −ꢀ40 −ꢀ45 −ꢀ50 −ꢀ55 −ꢀ60  
T , JUNCTION TEMPERATURE (°C)  
J
V
DS  
, DRAIN−TO−SOURCE VOLTAGE (VOLTS)  
Figure 5. On−Resistance Variation with  
Temperature  
Figure 6. Drain−To−Source Leakage  
Current versus Voltage  
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4
MTD2955E  
POWER MOSFET SWITCHING  
Switching behavior is most easily modeled and predicted  
by recognizing that the power MOSFET is charge  
controlled. The lengths of various switching intervals (Dt)  
are determined by how fast the FET input capacitance can  
be charged by current from the generator.  
The capacitance (C ) is read from the capacitance curve at  
a voltage corresponding to the off−state condition when  
iss  
calculating t  
and is read at a voltage corresponding to the  
d(on)  
on−state when calculating t  
.
d(off)  
At high switching speeds, parasitic circuit elements  
complicate the analysis. The inductance of the MOSFET  
source lead, inside the package and in the circuit wiring  
which is common to both the drain and gate current paths,  
produces a voltage at the source which reduces the gate drive  
current. The voltage is determined by Ldi/dt, but since di/dt  
is a function of drain current, the mathematical solution is  
complex. The MOSFET output capacitance also  
complicates the mathematics. And finally, MOSFETs have  
finite internal gate resistance which effectively adds to the  
resistance of the driving source, but the internal resistance  
is difficult to measure and, consequently, is not specified.  
The resistive switching time variation versus gate  
resistance (Figure 9) shows how typical switching  
performance is affected by the parasitic circuit elements. If  
the parasitics were not present, the slope of the curves would  
maintain a value of unity regardless of the switching speed.  
The circuit used to obtain the data is constructed to minimize  
common inductance in the drain and gate circuit loops and  
is believed readily achievable with board mounted  
components. Most power electronic loads are inductive; the  
data in Figure 9 is taken with a resistive load, which  
approximates an optimally snubbed inductive load. Power  
MOSFETs may be safely operated into an inductive load;  
however, snubbing reduces switching losses.  
The published capacitance data is difficult to use for  
calculating rise and fall because drain−gate capacitance  
varies greatly with applied voltage. Accordingly, gate  
charge data is used. In most cases, a satisfactory estimate of  
average input current (I  
) can be made from a  
G(AV)  
rudimentary analysis of the drive circuit so that  
t = Q/I  
G(AV)  
During the rise and fall time interval when switching a  
resistive load, V remains virtually constant at a level  
GS  
known as the plateau voltage, V . Therefore, rise and fall  
SGP  
times may be approximated by the following:  
t = Q x R /(V − V )  
GSP  
r
2
G
GG  
t = Q x R /V  
f
2
G
GSP  
where  
= the gate drive voltage, which varies from zero to V  
V
GG  
GG  
R = the gate drive resistance  
G
and Q and V  
are read from the gate charge curve.  
2
GSP  
During the turn−on and turn−off delay times, gate current is  
not constant. The simplest calculation uses appropriate  
values from the capacitance curves in a standard equation for  
voltage change in an RC network. The equations are:  
t
t
= R C In [V /(V − V )]  
G iss GG GG GSP  
d(on)  
d(off)  
= R C In (V /V )  
GG GSP  
G
iss  
1600  
1400  
V
DS  
= 0  
V
GS  
= 0  
T = 25°C  
J
C
C
iss  
1200  
1000  
800  
600  
400  
200  
0
rss  
C
iss  
C
oss  
C
rss  
10  
5
0
5
10  
15  
20  
25  
V
GS  
V
DS  
GATE−TO−SOURCE OR DRAIN−TO−SOURCE VOLTAGE (VOLTS)  
Figure 7. Capacitance Variation  
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5
MTD2955E  
1000  
70  
14  
12  
10  
8
V
I
= 30 V  
DD  
= 12 A  
60  
D
QT  
V
GS  
= 10 V  
50  
T = 25°C  
J
V
GS  
100  
Q1  
Q2  
40  
30  
tr  
6
t
d(off)  
10  
I
= 12 A  
D
t
d(on)  
4
20  
T = 25°C  
J
t
f
2
0
10  
Q3  
V
DS  
1
0
0
2
4
6
8
10  
12  
14  
16  
18  
1
10  
R , GATE RESISTANCE (OHMS)  
100  
Q , TOTAL GATE CHARGE (nC)  
G
G
Figure 8. Gate−To−Source and Drain−To−Source  
Voltage versus Total Charge  
Figure 9. Resistive Switching Time  
Variation versus Gate Resistance  
DRAIN−TO−SOURCE DIODE CHARACTERISTICS  
12  
V
GS  
= 0 V  
T = 25°C  
J
10  
8
6
4
2
0
0.5  
0.7  
0.9  
1.1  
1.3  
1.5  
1.7  
1.9  
2.1 2.2  
V
SD  
, SOURCE−TO−DRAIN VOLTAGE (VOLTS)  
Figure 10. Diode Forward Voltage versus Current  
SAFE OPERATING AREA  
The Forward Biased Safe Operating Area curves define  
the maximum simultaneous drain−to−source voltage and  
drain current that a transistor can handle safely when it is  
forward biased. Curves are based upon maximum peak  
reliable operation, the stored energy from circuit inductance  
dissipated in the transistor while in avalanche must be less  
than the rated limit and adjusted for operating conditions  
differing from those specified. Although industry practice is  
to rate in terms of energy, avalanche energy capability is not  
a constant. The energy rating decreases non−linearly with an  
increase of peak current in avalanche and peak junction  
temperature.  
junction temperature and a case temperature (T ) of 25°C.  
C
Peak repetitive pulsed power limits are determined by using  
the thermal response data in conjunction with the procedures  
discussed  
in  
AN569,  
“Transient  
Thermal  
Resistance−General Data and Its Use.”  
Switching between the off−state and the on−state may  
traverse any load line provided neither rated peak current  
Although many E−FETs can withstand the stress of  
drain−to−source avalanche at currents up to rated pulsed  
current (I ), the energy rating is specified at rated  
DM  
(I ) nor rated voltage (V ) is exceeded and the  
continuous current (I ), in accordance with industry  
DM  
DSS  
D
transition time (t ,t ) do not exceed 10 ms. In addition the total  
power averaged over a complete switching cycle must not  
custom. The energy rating must be derated for temperature  
as shown in the accompanying graph (Figure 12).  
r f  
exceed (T  
− T )/(R ).  
Maximum energy at currents below rated continuous I can  
J(MAX)  
C
qJC  
D
A Power MOSFET designated E−FET can be safely used  
in switching circuits with unclamped inductive loads. For  
safely be assumed to equal the values indicated.  
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6
MTD2955E  
SAFE OPERATING AREA  
100  
10  
240  
200  
160  
120  
I
D
= 12 A  
V
= 20 V  
SINGLE PULSE  
GS  
T
= 25°C  
C
100 ms  
1 ms  
10 ms  
1.0  
0.1  
dc  
80  
40  
0
R
LIMIT  
DS(on)  
THERMAL LIMIT  
PACKAGE LIMIT  
0.01  
0.1  
1.0  
10  
100  
25  
50  
75  
100  
125  
150  
V
DS  
, DRAIN−TO−SOURCE VOLTAGE (VOLTS)  
T , STARTING JUNCTION TEMPERATURE (°C)  
J
Figure 11. Maximum Rated Forward Biased  
Safe Operating Area  
Figure 12. Maximum Avalanche Energy versus  
Starting Junction Temperature  
1.0  
D = 0.5  
0.2  
0.1  
P
(pk)  
0.1  
R
q
(t) = r(t) R  
q
JC  
JC  
D CURVES APPLY FOR POWER  
PULSE TRAIN SHOWN  
READ TIME AT t  
0.05  
0.02  
t
1
1
0.01  
t
2
T
− T = P  
C
R (t)  
q
JC  
J(pk)  
(pk)  
SINGLE PULSE  
DUTY CYCLE, D = t /t  
1 2  
0.01  
0.00001  
0.0001  
0.001  
0.01  
t, TIME (SECONDS)  
0.1  
1.0  
10  
Figure 13. Thermal Response  
di/dt  
I
S
t
rr  
t
a
t
b
TIME  
0.25 I  
t
p
S
I
S
Figure 14. Diode Reverse Recovery Waveform  
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7
MTD2955E  
INFORMATION FOR USING THE DPAK SURFACE MOUNT PACKAGE  
RECOMMENDED FOOTPRINT FOR SURFACE MOUNTED APPLICATIONS  
Surface mount board layout is a critical portion of the total  
design. The footprint for the semiconductor packages must  
be the correct size to ensure proper solder connection  
interface between the board and the package. With the  
correct pad geometry, the packages will self align when  
subjected to a solder reflow process.  
0.165  
4.191  
0.118  
3.0  
0.100  
2.54  
0.063  
1.6  
0.190  
4.826  
0.243  
6.172  
inches  
mm  
POWER DISSIPATION FOR A SURFACE MOUNT DEVICE  
The power dissipation for a surface mount device is a  
will be giving up area on the printed circuit board which can  
defeat the purpose of using surface mount technology. For  
function of the drain pad size. These can vary from the  
minimum pad size for soldering to a pad size given for  
maximum power dissipation. Power dissipation for a  
example, a graph of R  
Figure 15.  
versus drain pad area is shown in  
qJA  
surface mount device is determined by T  
maximum rated junction temperature of the die, R , the  
, the  
J(max)  
100  
qJA  
Board Material = 0.0625″  
G−10/FR−4, 2 oz Copper  
thermal resistance from the device Junction−to−Ambient,  
and the operating temperature, T . Using the values  
1.75 Watts  
A
80  
60  
40  
20  
provided on the data sheet, P can be calculated as follows:  
D
T = 25°C  
A
T
J(max) − TA  
Rq  
°
PD =  
JA  
3.0 Watts  
The values for the equation are found in the maximum  
ratings table on the data sheet. Substituting these values into  
the equation for an ambient temperature T of 25°C, one can  
A
5.0 Watts  
calculate the power dissipation of the device. For a DPAK  
device, P is calculated as follows.  
D
0
2
4
6
8
10  
150°C − 25°C  
= 1.75 Watts  
PD =  
A, Area (square inches)  
71.4°C/W  
Figure 15. Thermal Resistance versus Drain Pad  
Area for the DPAK Package (Typical)  
The 71.4°C/W for the DPAK package assumes the use of  
the recommended footprint on a glass epoxy printed circuit  
board to achieve a power dissipation of 1.75 Watts. There are  
other alternatives to achieving higher power dissipation  
from the surface mount packages. One is to increase the area  
of the drain pad. By increasing the area of the drain pad, the  
power dissipation can be increased. Although one can  
almost double the power dissipation with this method, one  
Another alternative would be to use a ceramic substrate or  
an aluminum core board such as Thermal Clad . Using a  
board material such as Thermal Clad, an aluminum core  
board, the power dissipation can be doubled using the same  
footprint.  
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8
MTD2955E  
SOLDER STENCIL GUIDELINES  
Prior to placing surface mount components onto a printed  
pattern of the opening in the stencil for the drain pad is not  
critical as long as it allows approximately 50% of the pad to  
be covered with paste.  
circuit board, solder paste must be applied to the pads.  
Solder stencils are used to screen the optimum amount.  
These stencils are typically 0.008 inches thick and may be  
made of brass or stainless steel. For packages such as the  
SC−59, SC−70/SOT−323, SOD−123, SOT−23, SOT−143,  
SOT−223, SO−8, SO−14, SO−16, and SMB/SMC diode  
packages, the stencil opening should be the same as the pad  
size or a 1:1 registration. This is not the case with the DPAK  
SOLDER PASTE  
OPENINGS  
2
and D PAK packages. If one uses a 1:1 opening to screen  
STENCIL  
solder onto the drain pad, misalignment and/or  
“tombstoning” may occur due to an excess of solder. For  
these two packages, the opening in the stencil for the paste  
should be approximately 50% of the tab area. The opening  
for the leads is still a 1:1 registration. Figure 16 shows a  
Figure 16. Typical Stencil for DPAK and  
D2PAK Packages  
2
typical stencil for the DPAK and D PAK packages. The  
SOLDERING PRECAUTIONS  
The melting temperature of solder is higher than the rated  
temperature of the device. When the entire device is heated  
to a high temperature, failure to complete soldering within  
a short time could result in device failure. Therefore, the  
following items should always be observed in order to  
minimize the thermal stress to which the devices are  
subjected.  
Always preheat the device.  
The delta temperature between the preheat and  
soldering should be 100°C or less.*  
When shifting from preheating to soldering, the  
maximum temperature gradient shall be 5°C or less.  
After soldering has been completed, the device should  
be allowed to cool naturally for at least three minutes.  
Gradual cooling should be used as the use of forced  
cooling will increase the temperature gradient and  
result in latent failure due to mechanical stress.  
Mechanical stress or shock should not be applied  
during cooling.  
* Soldering a device without preheating can cause  
excessive thermal shock and stress which can result in  
damage to the device.  
When preheating and soldering, the temperature of the  
leads and the case must not exceed the maximum  
temperature ratings as shown on the data sheet. When  
using infrared heating with the reflow soldering  
method, the difference shall be a maximum of 10°C.  
* Due to shadowing and the inability to set the wave height  
2
to incorporate other surface mount components, the D PAK  
is not recommended for wave soldering.  
The soldering temperature and time shall not exceed  
260°C for more than 10 seconds.  
http://onsemi.com  
9
MTD2955E  
TYPICAL SOLDER HEATING PROFILE  
For any given circuit board, there will be a group of  
graph shows the actual temperature that might be  
experienced on the surface of a test board at or near a central  
solder joint. The two profiles are based on a high density and  
control settings that will give the desired heat pattern. The  
operator must set temperatures for several heating zones,  
and a figure for belt speed. Taken together, these control  
settings make up a heating “profile” for that particular  
circuit board. On machines controlled by a computer, the  
computer remembers these profiles from one operating  
session to the next. Figure 17 shows a typical heating profile  
for use when soldering a surface mount device to a printed  
circuit board. This profile will vary among soldering  
systems but it is a good starting point. Factors that can affect  
the profile include the type of soldering system in use,  
density and types of components on the board, type of solder  
used, and the type of board or substrate material being used.  
This profile shows temperature versus time. The line on the  
a
low density board. The Vitronics SMD310  
convection/infrared reflow soldering system was used to  
generate this profile. The type of solder used was 62/36/2  
Tin Lead Silver with a melting point between 177189°C.  
When this type of furnace is used for solder reflow work, the  
circuit boards and solder joints tend to heat first. The  
components on the board are then heated by conduction. The  
circuit board, because it has a large surface area, absorbs the  
thermal energy more efficiently, then distributes this energy  
to the components. Because of this effect, the main body of  
a component may be up to 30 degrees cooler than the  
adjacent solder joints.  
STEP 5  
HEATING  
ZONES 4 & 7  
SPIKE"  
STEP 6  
VENT  
STEP 7  
COOLING  
STEP 1  
PREHEAT  
ZONE 1  
RAMP"  
STEP 4  
HEATING  
ZONES 3 & 6  
SOAK"  
STEP 2  
VENT  
STEP 3  
HEATING  
SOAK" ZONES 2 & 5  
RAMP"  
205° TO 219°C  
PEAK AT  
SOLDER JOINT  
200°C  
150°C  
170°C  
DESIRED CURVE FOR HIGH  
MASS ASSEMBLIES  
160°C  
150°C  
SOLDER IS LIQUID FOR  
40 TO 80 SECONDS  
(DEPENDING ON  
100°C  
140°C  
MASS OF ASSEMBLY)  
100°C  
50°C  
DESIRED CURVE FOR LOW  
MASS ASSEMBLIES  
TIME (3 TO 7 MINUTES TOTAL)  
T
MAX  
Figure 17. Typical Solder Heating Profile  
http://onsemi.com  
10  
MTD2955E  
PACKAGE DIMENSIONS  
DPAK  
CASE 369A−13  
ISSUE AB  
SEATING  
PLANE  
−T−  
C
B
R
INCHES  
DIM MIN MAX  
MILLIMETERS  
E
V
MIN  
5.97  
6.35  
2.19  
0.69  
0.84  
0.94  
MAX  
6.35  
6.73  
2.38  
0.88  
1.01  
1.19  
A
B
C
D
E
F
0.235  
0.250  
0.086  
0.027  
0.033  
0.037  
0.250  
0.265  
0.094  
0.035  
0.040  
0.047  
4
2
Z
A
K
S
1
3
G
H
J
0.180 BSC  
4.58 BSC  
U
0.034  
0.018  
0.102  
0.040  
0.023  
0.114  
0.87  
0.46  
2.60  
1.01  
0.58  
2.89  
K
L
0.090 BSC  
2.29 BSC  
F
J
R
S
U
V
Z
0.175  
0.020  
0.020  
0.030  
0.138  
0.215  
0.050  
−−−  
0.050  
−−−  
4.45  
0.51  
0.51  
0.77  
3.51  
5.46  
1.27  
−−−  
1.27  
−−−  
L
H
D 2 PL  
M
G
0.13 (0.005)  
T
STYLE 2:  
PIN 1. GATE  
2. DRAIN  
3. SOURCE  
4. DRAIN  
http://onsemi.com  
11  
MTD2955E  
E−FET is a trademark of Semiconductor Components Industries, LLC (SCILLC).  
Thermal Clad is a registered trademark of the Bergquist Company.  
ON Semiconductor and  
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make  
changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any  
particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all  
liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or  
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be  
validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.  
SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications  
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death  
may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC  
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees  
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that  
SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.  
PUBLICATION ORDERING INFORMATION  
Literature Fulfillment:  
JAPAN: ON Semiconductor, Japan Customer Focus Center  
2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051  
Phone: 81−3−5773−3850  
Literature Distribution Center for ON Semiconductor  
P.O. Box 5163, Denver, Colorado 80217 USA  
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada  
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada  
Email: ONlit@hibbertco.com  
ON Semiconductor Website: http://onsemi.com  
For additional information, please contact your local  
Sales Representative.  
N. American Technical Support: 800−282−9855 Toll Free USA/Canada  
MTD2955E/D  

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