onsemi-MTB15N06VT4

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SEMICONDUCTOR TECHNICAL DATA  
TMOS POWER FET  
N–Channel Enhancement–Mode Silicon Gate  
15 AMPERES  
60 VOLTS  
TMOS V is a new technology designed to achieve an on–resistance  
area product about one–half that of standard MOSFE
T
s
. This new  
technology more than doubles the present cell density of our 50  
and 60 volt TMOS devices. Just as with our TMOS E–FET designs,  
TMOS V is designed to withstand high energy in the avalanche and  
commutation modes. Designed for low voltage, high speed  
switching applications in power supplies, converters and power  
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
= 0.12 OHM  
DS(on)  
TM  
D
New Features of TMOS V  
G
•
On–resistance Area Product about One–half that of Standard  
MOSFE
T
s
w
ith New Low Voltage, Low R
 
T
e
chnology  
DS(on)  
Faster Switching than E–FET Predecessors  
CASE 418B–02, Style 2  
S
2
•
D PAK  
Features Common to TMOS V and TMOS E–FETs  
•
•
•
•
Avalanche Energy Specified  
and V
 
Specified at Elevated
T
e
mperature  
Static Parameters are the Same for both TMOS V and TMOS E–FET  
Surface Mount Package Available in 16 mm 13–inch/2500 Unit
T
a
pe & Reel,  
Add T4 Suffix to Part Number  
I
DSS  
DS(on)  
MAXIMUM RATINGS
(T =
 
25
°
C unless otherwise noted)  
C
Rating  
Symbol  
Value  
60  
Unit  
Drain–Source Voltage  
V
DSS  
Vdc  
Vdc  
Drain–Gate Voltage (R  
= 1.0 M
Ω
)  
V
DGR  
60  
GS  
Gate–Source Voltage — Continuous  
Gate–Source Voltage
— Non–Repetitive (t
 
≤
10 ms)  
V
±
20  
±
25  
Vdc  
Vpk  
GS  
V
GSM  
p
Drain Current — Continuous @ 25
°
C  
Drain Current
— Continuous @ 100
°
C  
I
I
15  
8.7  
45  
Adc  
D
D
Drain Current
— Single Pulse (t
 
≤
10
µ
s)  
I
Apk  
p
DM  
T
o
tal Power Dissipation @ 25
°
C  
Derate above 25
°
C  
P
D
55  
0.37  
3.0  
Watts  
W/
°
C  
Watts  
T
o
tal Power Dissipation @ T
 
= 25
°
C (1)  
A
Operating and Storage
T
e
mperature Range  
T ,
 
T  
stg  
– 55 to 175  
113  
°
C  
J
Single Pulse Drain–to–Source Avalanche Energy — Starting T
 
= 25
°
C  
E
AS  
mJ  
J
(V  
DD  
= 25 Vdc, V
 
= 10 Vdc, I
 
= 15 Apk, L = 1.0 mH, R
 
= 25
Ω
)  
GS L
 
G  
Thermal Resistance — Junction to Case  
Thermal Resistance
— Junction to Ambient  
Thermal Resistance
— Junction to Ambient (1)  
R
R
R
2.73  
62.5  
50  
°
C/W  
°
C  
θ
JC  
θ
JA  
θ
JA  
Maximum Lead
T
e
mperature for Soldering Purposes, 1/8
″
from case for 10 seconds  
T
260  
L
(1) When
 
surface mounted to an FR4 board using the minimum recommended pad size.  
Designer’s Data for “Worst Case” Conditions
— The Designer’s Data Sheet permits the design of most circuits entirely from the information presented. SOA Limit  
curves — representing boundaries on device characteristics — are given to facilitate “worst case” design.  
Designer’s is a trademark of Motorola, Inc. TMOS is a registered trademark of Motorola, Inc.  
Thermal Clad is a trademark of the Bergquist Company.  
REV 2  
Motorola, Inc. 1996  

ELECTRICAL CHARACTERISTICS
(T =
 
25
°
C unless otherwise noted)  
J
Characteristic  
Symbol  
Min  
Typ  
Max  
Unit  
OFF CHARACTERISTICS  
Drain–Source Breakdown
V
o
ltage  
V
(BR)DSS  
(V  
GS  
= 0 Vdc, I
 
= 0.25 mAdc)  
60  
—
—
67  
—
—
Vdc  
mV/
°
C  
D
T
e
mperature Coefficient (Positive)  
Zero Gate Voltage Drain Current  
I
µ
Adc  
DSS  
(V  
DS  
(V  
DS  
= 60 Vdc, V  
= 60 Vdc, V  
= 0 Vdc)  
= 0 Vdc, T
 
= 150
°
C)  
—
—
—
—
10  
100  
GS  
GS  
J
Gate–Body Leakage Current (V  
=
±
20 Vdc, V  
DS  
= 0)  
I
—
—
100  
nAdc  
GS  
GSS  
ON CHARACTERISTICS (1)  
Gate Threshold Voltage  
V
GS(th)  
(V  
DS  
= V
 
, I
 
= 250
µ
Adc)  
2.0  
—
2.7  
5.0  
4.0  
—
Vdc  
mV/
°
C  
GS  
D
T
e
mperature Coefficient (Negative)  
Static Drain–Source On–Resistance (V  
= 10 Vdc, I
 
= 7.5 Adc)  
R
V
—
0.08  
0.12  
Ohm  
Vdc  
GS  
D
DS(on)  
Drain–Source On–Voltage (V  
GS  
= 10 Vdc)  
DS(on)  
(I =
 
15 Adc)  
—
—
2.0  
—
2.2  
1.9  
D
(I =
 
7.5 Adc, T
 
= 150
°
C)  
D
J
Forward Transconductance (V  
DS  
= 8.0 Vdc, I
 
= 7.5 Adc)  
g
4.0  
6.2  
—
mhos  
pF  
D
FS  
DYNAMIC CHARACTERISTICS  
Input Capacitance  
C
—
—
—
469  
148  
35  
660  
200  
60  
iss  
(V  
DS  
= 25 Vdc, V
 
= 0 Vdc,  
GS  
f = 1.0 MHz)  
Output Capacitance  
C
oss  
Reverse Transfer Capacitance  
C
rss  
SWITCHING CHARACTERISTICS (2)  
Turn–On Delay Time  
t
—
—
—
—
—
—
—
—
7.6  
51  
20  
100  
40  
70  
20  
—
ns  
d(on)  
(V  
= 30 Vdc, I
 
= 15 Adc,  
D
Rise Time  
DD  
DS  
t
r
V
= 10 Vdc,  
GS  
G
Turn–Off Delay Time  
Fall Time  
t
18  
d(off)  
R
= 9.1
Ω
)  
t
f
33  
Gate Charge  
(See Figure 8)  
Q
T
Q
1
Q
2
Q
3
14.4  
2.8  
6.4  
6.1  
nC  
(V  
= 48 Vdc, I
 
= 15 Adc,  
D
V
GS  
= 10 Vdc)  
—
—
SOURCE–DRAIN DIODE CHARACTERISTICS  
Forward On–Voltage (1)  
V
Vdc  
ns  
SD  
(I =
 
15 Adc, V  
(I =
 
15 Adc, V  
GS  
= 0 Vdc)  
= 0 Vdc, T
 
= 150
°
C)  
S
GS  
—
—
1.05  
0.9  
1.6  
—
S
J
Reverse Recovery Time  
(See Figure 14)  
t
—
—
—
—
59.3  
46  
—
—
—
—
rr  
t
a
(I =
 
15 Adc, V  
= 0 Vdc,  
dI /dt
 
= 100 A/
µ
s)  
S
GS  
S
t
13.3  
0.165  
b
Reverse Recovery Stored Charge  
Q
µ
C  
RR  
INTERNAL PACKAGE INDUCTANCE  
Internal Drain Inductance  
(Measured from the drain lead 0.25
″
from package to center of die)  
L
—
—
4.5  
7.5  
—
—
nH  
nH  
D
Internal Source Inductance  
(Measured from the source lead 0.25
″
from package to source bond pad)  
L
S
(1) Pulse
 
T
e
st: Pulse Width
≤
300
µ
s, Duty Cycle
≤
2%.  
(2) Switching
 
characteristics are independent of operating junction temperature.  
2
Motorola TMOS Power MOSFET Transistor Device Data  

TYPICAL ELECTRICAL CHARACTERISTICS  
30  
25  
30  
V
= 10 V  
GS  
9 V  
T
= 25  
°
C  
V
≥
10 V  
J
DS  
8 V  
25  
20  
15  
10  
7 V  
100
°
C  
20  
15  
10  
25
°
C  
T
=
–
5
5
°
C  
J
6 V  
5 V  
5
0
5
0
0
1
2
3
4
5
6
7
2
4
6
8
10  
V
, DRAIN–TO–SOURCE VO
L
TAGE (VOLTS)  
V ,
 
GATE–TO–SOURCE VOLTAGE (VOLTS)  
GS  
DS  
Figure 1. On–Region Characteristics  
Figure 2. Transfer Characteristics  
0.2  
0.13  
0.11  
0.09  
V
= 10 V  
T
= 25
°
C  
GS  
J
0.14  
T
= 100
°
C  
J
V
= 10 V  
GS  
25
°
C  
0.08  
0.02  
15 V  
0.07  
0.05  
–
5
5
°
C  
0
5
10  
15  
20  
25  
30  
0
5
10  
I ,
 
DRAIN CURRENT (AMPS)  
D
15  
20  
25  
30  
I
, DRAIN CURRENT (AMPS)  
D
Figure 3. On–Resistance versus Drain Current  
and Temperature  
Figure 4. On–Resistance versus Drain Current  
and Gate Voltage  
100  
2
V
= 0 V  
GS  
V
= 10 V  
GS  
= 7.5 A  
I
D
1.6  
1.2  
T
= 125
°
C  
J
0.8  
0.4  
10  
–
5
0  
–
2
5  
0
25  
50  
75  
100  
125  
C)  
150  
175  
0
10  
20  
30  
40  
50  
60  
T ,
 
JUNCTION TEMPER
A
T
URE (  
°
V
DS  
, DRAIN–TO–SOURCE VO
L
TAGE (VOLTS)  
J
Figure 5. On–Resistance Variation with  
Temperature  
Figure 6. Drain–To–Source Leakage  
Current versus Voltage  
Motorola TMOS Power MOSFET Transistor Device Data  
3

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 (
∆
t) 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  
iss  
a voltage corresponding to the off–state condition when cal-  
culating 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 compli-  
cates the mathematics. And finally, MOSFE
T
s
h
ave finite  
internal gate resistance which effectively adds to the  
resistance of the driving source, but the internal resistance is  
difficult to measure and, consequentl
y
,
i
s not specified.  
The resistive switching time variation versus gate resis-  
tance (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 the figure is  
taken with a resistive load, which approximates an optimally  
snubbed inductive load.
 
Power MOSFE
T
s
m
ay be safely  
operated into an inductive load; however, snubbing reduces  
switching losses.  
The published capacitance data is difficult to use for calculat-  
ing 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  
the drive circuit so that  
) can be made from a rudimentary analysis of  
G(AV)  
t = Q/I  
G(AV)  
During the rise and fall time interval when switching a resis-  
tive load, V
 
remains virtually constant at a level known as  
GS  
the plateau voltage, V  
. Therefore,
 
rise and fall times may  
SGP  
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  
V
= the gate drive voltage, which varies from zero to V  
= the gate drive resistance  
GG  
GG  
R
G
and Q
 
and V  
GSP  
are read from the gate charge curve.  
2
During the turn–on and turn–off delay times, gate current is  
not constant.
 
The simplest calculation uses appropriate val-  
ues from the capacitance curves in a standard equation for  
voltage change in an RC network.
 
The equations are:  
t
t
= R  
= R  
C
C
In [V  
/(V  
GG GG  
– V  
)]  
GSP  
d(on)  
G
iss  
In (V  
/V  
GG GSP  
)
d(off)  
G
iss  
1500  
1200  
V
= 0 V  
V
= 0 V  
T
= 25
°
C  
DS  
GS  
J
C
iss  
900  
C
rss  
600  
300  
0
C
iss  
C
oss  
C
rss  
10  
5
0
5
10  
15  
20  
25  
V
V
DS  
GS  
GATE–TO–SOURCE OR DRAIN–TO–SOURCE VOLTAGE (VOLTS)  
Figure 7. Capacitance Variation  
4
Motorola TMOS Power MOSFET Transistor Device Data  

12  
10  
60  
50  
1000  
100  
V
= 30 V  
= 15 A  
= 10 V  
= 25
°
C  
DD  
QT  
I
V
T
D
GS  
V
GS  
J
8
6
4
40  
30  
20  
t
r
Q1  
Q2  
t
f
t
t
d(off)  
I
T
= 15 A  
= 25
°
C  
D
J
10  
1
d(on)  
2
0
10  
0
V
Q3  
3
DS  
12  
0
6
9
15  
1
10  
, GATE RESISTANCE (OHMS)  
G
100  
Q ,
 
TOTAL CHARGE (nC)  
R
T
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  
15  
V
= 0 V  
GS  
= 25
°
C  
T
J
12  
9
6
3
0
0.5  
0.7  
0.9  
1.1  
1.3  
1.5  
V
, SOURCE–TO–DRAIN VO
L
TAGE (VOLTS)  
SD  
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.”  
Although many E–FE
T
s
c
an withstand the stress of  
drain–to–source avalanche at currents up to rated pulsed  
Switching between the off–state and the on–state may  
traverse any load line provided neither rated peak current  
current (I  
), the energy rating is specified at rated  
DM  
(I  
) nor rated voltage (V  
) is exceeded and the transition  
DM  
DSS  
continuous current (I
 
), in accordance with industry custom.  
D
time (t ,t ) do not exceed 10
µ
s. In addition the total power  
averaged over a complete switching cycle must not exceed  
r f  
The energy rating must be derated for temperature as shown  
in the accompanying graph (Figure 12). Maximum energy at  
(T  
– T
 
)/(R ).  
J(MAX)  
C
θ
JC  
currents below rated continuous I
 
can safely be assumed to  
A Power MOSFET designated E–FET can be safely used  
D
in switching circuits with unclamped inductive loads. For  
Motorola TMOS Power MOSFET Transistor Device Data  
equal the values indicated.  
5

SAFE OPERATING AREA  
120  
100  
100  
10  
V
= 10 V  
GS  
SINGLE PULSE  
= 25
 
C  
I
= 15 A  
D
T
°
C
10
µ
s  
80  
60  
40  
100
µ
s  
1 ms  
10 ms  
1.0  
0.1  
dc  
R
LIMIT  
THERMAL LIMIT  
PACKAGE LIMIT  
DS(on)  
20  
0
0.1  
1.0  
10  
100  
25  
50  
75  
100  
125  
150  
C)  
175  
T ,
 
STARTING JUNCTION TEMPER
A
T
URE (  
°
V
, DRAIN–TO–SOURCE VO
L
TAGE (VOLTS)  
J
DS  
Figure 11. Maximum Rated Forward Biased  
Safe Operating Area  
Figure 12. Maximum Avalanche Energy versus  
Starting Junction Temperature  
1
D = 0.5  
0.2  
0.1  
P
0.05  
(pk)  
0.1  
R
(t) = r(t) R  
JC
θ
JC  
θ
D CURVES APPLY FOR POWER  
PULSE TRAIN SHOWN  
0.02  
0.01  
SINGLE PULSE  
t
READ TIME AT t  
T
1
1
t
– T
 
= P
 
R (t)  
(pk)
θ
JC  
2
J(pk)  
C
DUTY CYCLE, D = t
 
/t  
1 2  
0.01  
1.0E–05  
1.0E–04  
1.0E–03  
1.0E–02  
1.0E–01  
1.0E+00  
1.0E+01  
t, TIME (s)  
Figure 13. Thermal Response  
3
R
= 50
°
C/W  
θ
JA  
Board material = 0.065 mil FR–4  
Mounted on the minimum recommended footprint  
Collector/Drain Pad Size
≈
450 mils x 350 mils  
2.5  
2.0  
1.5  
1
di/dt  
I
S
t
rr  
t
t
a
b
TIME  
0.5  
0.25 I  
t
S
p
0
25  
50  
75  
100  
125  
150  
175  
I
S
T ,
 
AMBIENT TEMPER
A
T
URE (  
°
C)  
A
2
Figure 15. D
 
PAK Power Derating Curve  
Figure 14. Diode Reverse Recovery Waveform  
6
Motorola TMOS Power MOSFET Transistor Device Data  

2
INFORMATION FOR USING THE D
 
PAK SURFACE MOUNT PACKAGE  
RECOMMENDED FOOTPRINT FOR SURFACE MOUNTED APPLIC
A
T
IONS  
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.  
0.33  
8.38  
0.08  
2.032  
0.42  
0.24  
10.66  
6.096  
0.04  
1.016  
0.12  
3.05  
0.63  
17.02  
inches  
mm  
POWER DISSIPATION FOR A SURFACE MOUNT DEVICE  
The power dissipation for a surface mount device is a  
dissipation can be increased. Although one can almost double  
the power dissipation with this method, one will be giving up  
area on the printed circuit board which can defeat the purpose  
of using surface mount technology. For example, a graph of  
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 surface  
mount device is determined by T  
junction temperature of the die, R  
θ
JA  
, the maximum rated  
, the thermal resistance  
R
versus drain pad area is shown in Figure 16.  
J(max)  
θ
JA  
70  
from the device junction to ambient, and the operating  
temperature, T
 
. Using the values provided on the data sheet,  
Board Material = 0.0625  
″
A
G–10/FR–4, 2 oz Copper  
T
= 25
°
C  
A
P
can be calculated as follows:  
D
60  
50  
2.5 Watts  
3.5 Watts  
T
– T  
A
J(max)  
P
=
D
R
θ
JA  
40  
30  
20  
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  
5 Watts  
A
2
calculate the power dissipation of the device. For a D
 
PAK  
device, P
 
is calculated as follows.  
D
0
2
4
6
8
10  
12  
14  
16  
A, AREA (SQUARE INCHES)  
175
°
C – 25
°
C  
= 3.0
 
Watts  
P
=
D
Figure 16. Thermal Resistance versus Drain Pad  
50
°
C/W  
2
Area for the D
 
PAK Package (Typical)  
2
Th
e
5
0
°
C/
W
f
o
r
t
h
e
D
P
A
K
p
ackag
e
a
ssume
s
t
h
e
u
s
e
o
f
t
he  
recommended footprint on a glass epoxy printed circuit board  
to achieve a power dissipation of 3.0 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  
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.  
Motorola TMOS Power MOSFET Transistor Device Data  
7

SOLDER STENCIL GUIDELINES  
Prior to placing surface mount components onto a printed  
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  
packages. The 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.  
SOLDER PASTE  
OPENINGS  
2
registration. This is not the case with the DPAK and D
 
PAK  
packages. If one uses a 1:1 opening to screen 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.  
STENCIL  
Figure 17. Typical Stencil for DPAK and  
2
D PAK
 
Packages  
2
Figure 17 shows a typical stencil for the DPAK and D
 
PAK  
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.  
•
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.  
•
Always preheat the device.  
•
The delta temperature between the preheat and soldering  
should be 100
°
C or less.*  
•
Mechanical stress or shock should not be applied during  
cooling.  
•
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.  
* Soldering
 
a device without preheating can cause excessive  
thermal shock and stress which can result in damage to the  
device.  
* Due
 
to shadowing and the inability to set the wave height to  
2
•
The soldering temperature and time shall not exceed  
260
°
C for more than 10 seconds.  
incorporate other surface mount components, the D
 
PAK is  
not recommended for wave soldering.  
8
Motorola TMOS Power MOSFET Transistor Device Data  

TYPICAL SOLDER HE
A
T
ING PROFILE  
For any given circuit board, there will be a group of control  
line on the 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  
a low density board. The Vitronics SMD310 convection/in-  
frared 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 17
7
–
189
°
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.  
settings that will give the desired heat pattern. The operator  
must set temperatures for several heating zones, and a figure  
for belt speed.
T
a
ken 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  
18 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,  
typ
e
o
f
s
olde
r
u
sed, an
d
t
h
e
t
yp
e
o
f
b
oar
d
o
r
s
ubstrat
e
m
aterial  
being used. This profile shows temperature versus time. The  
STEP 1  
PREHEAT  
ZONE 1  
“RAMP”  
STEP 2  
VENT  
“SOAK” ZONES
 
2 & 5  
“RAMP”  
STEP 3  
HEATING  
STEP 4  
HEATING  
ZONES 3 & 6
 
ZONES 4 & 7  
“SOAK”  
STEP 5  
HEATING  
STEP 6  
VENT  
STEP 7  
COOLING  
205  
PEAK AT  
SOLDER JOINT  
°
TO 219
°
C  
“SPIKE”  
170
°
C  
200  
150  
100  
50  
°
C  
°
C  
°
C  
°
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 ASSEMB
L
Y
)  
DESIRED CURVE FOR LOW  
MASS ASSEMBLIES  
TIME (3 TO 7 MINUTES TOTAL)  
T
MAX  
Figure 18. Typical Solder Heating Profile  
Motorola TMOS Power MOSFET Transistor Device Data  
9

PACKAGE DIMENSIONS  
C
E
V
B
NOTES:  
1. DIMENSIONING AND TOLERANCING PER ANSI  
4
Y14.5M, 1982.  
2. CONTROLLING
 
DIMENSION: INCH.  
INCHES  
MILLIMETERS  
STYLE 2:  
PIN 1.
 
GATE  
A
DIM  
A
B
C
D
E
MIN  
MAX  
0.380  
0.405  
0.190  
0.035  
0.055  
MIN  
8.64  
9.65  
4.06  
0.51  
1.14  
MAX  
9.65  
10.29  
4.83  
0.89  
1.40  
S
0.340  
0.380  
0.160  
0.020  
0.045  
2. DRAIN  
3. SOURCE  
4. DRAIN  
1
2
3
–T–  
SEATING  
PLANE  
K
G
H
J
K
S
0.100 BSC  
2.54 BSC  
0.080  
0.018  
0.090  
0.575  
0.045  
0.110  
0.025  
0.110  
0.625  
0.055  
2.03  
0.46  
2.79  
0.64  
J
G
2.29  
2.79  
H
14.60  
1.14  
15.88  
1.40  
D
3 PL  
V
M
0.13 (0.005)  
T
CASE 418B–02  
ISSUE B  
Motorol
a
r
eserves the right to make changes without further notice to any products herein.
 
Motorola makes no warranty, representatio
n
o
r
g
uarante
e
r
egarding  
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,  
an
d
s
pecifically disclaims any and all liability, includin
g
w
ithou
t
l
imitatio
n
c
onsequentia
l
o
r
i
ncidenta
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d
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“Typical” parameters can and do vary in different  
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operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts.
 
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d
o
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