onsemi-ISL9N308AD3

Part #onsemi-ISL9N308AD3
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onsemi-ISL9N308AD3
June 2002  
PWM Optimized  
ISL9N308AD3 / ISL9N308AD3ST  
®
N-Channel Logic Level UltraFET
 
Trench Power MOSFETs  
30V, 50A, 8m
Ω  
General Description  
Features  
This device employs a new advanced trench MOSFET  
technology and features low gate charge while maintaining  
low on-resistance.  
•
•
•
•
•
•
Fast switching  
r
r
= 0.0064
Ω
(Typ), V
 
= 10V  
GS  
DS(ON)  
DS(ON)  
= 0.010
Ω
(Typ), V
 
= 4.5V  
Optimized for switching applications, this device improves  
the overall efficiency of DC/DC converters and allows  
operation to higher switching frequencies.  
GS  
Q (Typ)
 
= 24nC, V
 
= 5V  
g
GS  
Q
(Typ) = 8nC  
gd  
ISS  
Applications  
•
DC/DC converters  
C
(Typ) = 2600pF  
D
S
D
G
S
G
I-PAK  
(TO-251AA)  
D-PAK  
(TO-252)  
G D S  
MOSFET Maximum Ratings
T =
 
25°C unless otherwise noted  
C
Symbol  
Parameter  
Ratings  
30  
Units  
V
V
Drain to Source Voltage  
Gate to Source Voltage  
V
V
DSS  
GS  
±
20  
Drain Current  
o
50  
48  
A
A
Continuous (T
 
= 25 C, V
 
= 10V) Note 1  
C
GS  
o
I
Continuous (T
 
= 100 C, V
 
= 4.5V) Note 1  
C GS  
D
o
o
Continuous (T
 
= 25 C, V
 
= 10V, R
 
= 52 C/W)  
θ
JC  
14  
A
C
GS  
Pulsed  
Figure 4  
A
Power dissipation  
Derate above 25 C  
100  
0.67  
W
W/ C  
P
o
o
D
o
T , T  
Operating and Storage
T
e
mperature  
-55 to 175  
C
J
STG  
Thermal Characteristics  
o
o
o
R
R
R
Thermal Resistance Junction to Case TO-252, TO-251  
Thermal Resistance Junction to Ambient TO-252, TO-251  
1.5  
100  
52  
C/W  
C/W  
C/W  
θ
JC  
θ
JA  
θ
JA  
2
Thermal Resistance Junction to Ambient TO-252, 1in
 
copper pad area  
Package Marking and Ordering Information  
Device Marking  
N308AD  
Device  
Package  
TO-252AA  
TO-251AA  
Reel Size  
330mm  
T
u
be  
Tape Width  
Quantity  
2500 units  
75 units  
ISL9N308AD3ST  
ISL9N308AD3  
16mm  
N/A  
N308AD  
©2002 Fairchild Semiconductor Corporation  
ISL9N308AD3 / ISL9N308AD3ST Rev C  

Electrical Characteristics
T =
 
25
°
C unless otherwise noted  
C
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
Max  
Units  
Off Characteristics  
B
Drain to Source Breakdown Voltage  
Zero Gate Voltage Drain Current  
Gate to Source Leakage Current  
I
= 250
µ
A, V
 
= 0V  
30  
–
–
–
–
–
–
V
VDSS  
D
GS  
V
V
V
= 25V  
= 0V  
1
DS  
GS  
GS  
I
I
µ
A  
nA  
DSS  
o
T
= 150  
–
250  
±
100  
C
=
±
20V  
–
GSS  
On Characteristics  
V
Gate to Source Threshold Voltage  
V
= V
 
, I
 
= 250
µ
A  
1
–
–
3
V
GS(TH)  
GS  
DS  
D
I
I
= 50A, V
 
= 10V  
0.0064 0.008  
D
D
GS  
r
Drain to Source On Resistance  
Ω
DS(ON)  
= 48A, V
 
= 4.5V  
–
0.010  
0.012  
GS  
Dynamic Characteristics  
C
C
C
Input Capacitance  
–
–
–
–
–
–
–
–
2600  
520  
225  
45  
–
–
pF  
pF  
pF  
nC  
nC  
nC  
nC  
nC  
ISS  
V
= 15V, V
 
= 0V,  
GS  
DS  
Output Capacitance  
OSS  
RSS  
f = 1MHz  
Reverse
T
r
ansfer Capacitance  
T
o
tal Gate Charge at 10V  
T
o
tal Gate Charge at 5V  
Threshold Gate Charge  
Gate to Source Gate Charge  
Gate to Drain
“
Miller
”
Charge  
–
Q
Q
Q
Q
Q
V
V
V
= 0V to 10V  
= 0V to
 
5V  
= 0V to 1V  
68  
37  
4.0  
–
g(TOT)  
g(5)  
g(TH)  
gs  
GS  
GS  
GS  
24  
V
= 15V  
DD  
= 48A  
I
2.6  
7
D
I =
 
1.0mA  
g
8
–
gd  
Switching Characteristics
 
(V =
 
4.5V)  
GS  
t
t
t
t
t
t
T
u
rn-On Time  
T
u
rn-On Delay Time  
Rise Time  
–
–
–
–
–
–
–
122  
ns  
ns  
ns  
ns  
ns  
ns  
ON  
15  
67  
35  
32  
–
–
d(ON)  
–
V
V
= 15
V
, I
 
=
1
4A  
r
DD  
GS  
D
= 4.5V, R
 
= 6.2
Ω  
T
u
rn-Off Delay Time  
Fall Time  
–
–
GS  
d(OFF)  
f
T
u
rn-Off Time  
100  
OFF  
Switching Characteristics
 
(V =
 
10V)  
GS  
t
t
t
t
t
t
T
u
rn-On Time  
T
u
rn-On Delay Time  
Rise Time  
–
–
–
–
–
–
–
71  
ns  
ns  
ns  
ns  
ns  
ns  
ON  
8
–
d(ON)  
40  
64  
31  
–
–
V
V
= 15
V
, I
 
=
1
4A  
r
DD  
GS  
D
= 10V, R
 
= 6.2
Ω  
T
u
rn-Off Delay Time  
Fall Time  
–
–
GS  
d(OFF)  
f
T
u
rn-Off Time  
142  
OFF  
Unclamped Inductive Switching  
t
Avalanche Time  
I
= 3.2A, L = 3.0mH  
215  
–
–
µ
s  
AV  
D
Drain-Source Diode Characteristics  
I
I
I
I
= 48A  
= 20A  
–
–
–
–
–
–
–
–
1.25  
1.0  
26  
V
V
SD  
SD  
SD  
SD  
V
Source to Drain Diode Voltage  
SD  
t
Reverse Recovery Time  
= 48A, dI
 
/dt = 100A/
µ
s  
ns  
nC  
rr  
SD  
Q
Reverse Recovered Charge  
= 48A, dI
 
/dt = 100A/
µ
s  
14  
RR  
SD  
Notes:  
1:
TO-251AA continuous current limited by package to 35A.  
©2002 Fairchild Semiconductor Corporation  
ISL9N308AD3 / ISL9N308AD3ST Rev C  

Typical Characteristic
T =
 
25
°
C unless otherwise noted  
C
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
60  
50  
40  
30  
20  
10  
0
V
= 10V  
GS  
V
= 4.5V  
GS  
0
25  
50  
75  
100  
150  
175  
125  
o
25  
50  
75  
T ,
 
CASE TEMPER
A
T
URE (
 
C)  
C
100  
125  
150  
175  
o
T
, CASE TEMPERATURE (
 
C)  
C
Figure 1.
 
Normalized Power Dissipation vs  
Ambient Temperature  
Figure 2.
 
Maximum Continuous Drain Current vs  
Case Temperature  
2
DUTY CYCLE – DESCENDING ORDER  
0.5  
0.2  
1
0.1  
0.05  
0.02  
0.01  
P
DM  
0.1  
t
1
t
2
SINGLE PULSE  
NOTES:  
DUTY
F
ACTOR: D = t
 
/t  
1
2
PEAK T
 
= P  
x Z  
x R  
+ T  
θ
JC C  
J
DM  
θ
JC  
0.01  
-5  
-4  
-3  
-2  
-1  
0
1
10  
10  
10  
10  
t, REC
T
ANGULAR PULSE DURATION (s)  
10  
10  
10  
Figure 3.
 
Normalized Maximum Transient Thermal Impedance  
1000  
o
T
= 25
 
C  
C
FOR TEMPERATURES  
o
ABOVE 25
 
C DERATE PEAK  
CURRENT AS FOLLOWS:  
175 – T  
150  
C
I = I  
25  
V
= 10V  
GS  
V
= 5V  
GS  
100  
40  
TRANSCONDUCTANCE  
M
A
Y
L
IMIT CURRENT  
IN THIS REGION  
-5  
-4  
-3  
-2  
-1  
0
1
10  
10  
10  
10  
t, PULSE WIDTH (s)  
10  
10  
10  
Figure 4.
 
Peak Current Capability  
©2002 Fairchild Semiconductor Corporation  
ISL9N308AD3 / ISL9N308AD3ST Rev C  

Typical Characteristic
(Continued) T
 
= 25
°
C unless otherwise noted  
C
100  
75  
50  
25  
0
100  
75  
50  
25  
0
PULSE DURATION = 80
µ
s  
V
= 10V  
GS  
DUTY CYCLE = 0.5% MAX  
V
= 4.5V  
GS  
V
= 15V  
DD  
V
= 3.5V  
GS  
o
T
= 175
 
C  
J
V
= 3V  
GS  
o
o
T =
 
-55 C  
J
T
= 25
 
C  
J
PULSE DUR
A
T
ION = 80
µ
s  
DUTY CYCLE = 0.5% MAX  
o
T
= 25
 
C  
C
0
0.5  
1.0  
1.5  
2.0  
1
2
3
4
5
V
, GATE TO SOURCE VOLTAGE (V)  
V
, DRAIN TO SOURCE VOLTAGE (V)  
GS  
DS  
Figure 5.
 
Transfer Characteristics  
Figure 6.
 
Saturation Characteristics  
25  
20  
15  
10  
5
2.0  
PULSE DUR
A
T
ION = 80
µ
s  
PULSE DUR
A
T
ION = 80
µ
s  
DUTY CYCLE = 0.5% MAX  
DUTY CYCLE = 0.5% MAX  
o
I
= 32A  
T
= 25
 
C  
D
C
1.5  
I
= 50A  
I
= 14A  
D
D
1.0  
0.5  
V
= 10
V
, I
 
=
5
0A  
D
GS  
-80  
-40  
0
40  
80  
120  
160  
200  
2
4
6
8
10  
o
V
, G
A
T
E TO SOURCE VOLTAGE (V)  
T ,
 
JUNCTION TEMPERATURE (
 
C)  
GS  
J
Figure 7.
 
Drain to Source On Resistance vs Gate  
Voltage and Drain Current  
Figure 8.
 
Normalized Drain to Source On  
Resistance vs Junction Temperature  
1.2  
1.4  
I =
 
250
µ
A  
D
V
= V
 
, I
 
= 250
µ
A  
GS  
DS  
D
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
1.1  
1.0  
0.9  
-80  
-40  
0
40  
80  
120  
160  
200  
-80  
-40  
0
40  
80  
120  
160  
200  
o
o
T ,
 
JUNCTION TEMPER
A
T
URE (
 
C)  
T , JUNCTION TEMPER
A
T
URE (
 
C)  
J
J
Figure 9.
 
Normalized Gate Threshold Voltage vs  
Junction Temperature  
Figure 10.
 
Normalized Drain to Source  
Breakdown Voltage vs Junction Temperature  
©2002 Fairchild Semiconductor Corporation  
ISL9N308AD3 / ISL9N308AD3ST Rev C  

Typical Characteristic
(Continued) T
 
= 25
°
C unless otherwise noted  
C
4000  
10  
V
= 15V  
DD  
C
=
C +
 
C  
GD  
ISS  
GS  
8
C
C
+ C  
OSS  
DS GD  
1000  
6
C
=
C  
GD  
RSS  
4
WAVEFORMS IN  
DESCENDING ORDER:  
2
I
I
= 48A  
= 14A  
D
D
V
= 0
V
, f =
1
MHz  
GS  
0
100  
30  
0.1  
1
10  
0
10  
20  
30  
40  
50  
V
, DRAIN TO SOURCE VOLTAGE (V)  
Q ,
 
GATE CHARGE (nC)  
DS  
g
Figure 11.
 
Capacitance vs Drain to Source  
Voltage  
Figure 12.
 
Gate Charge Waveforms for Constant  
Gate Currents  
250  
350  
V
= 10
V
, V
 
=
1
5
V
, I
 
=
1
4A  
GS  
DD  
D
V
= 4.5
V
, V
 
=
1
5
V
, I
 
=
1
4A  
DD D  
GS  
300  
250  
200  
150  
100  
50  
200  
150  
100  
50  
t
r
t
d(OFF)  
t
d(OFF)  
t
f
t
f
t
d(ON)  
t
r
t
d(ON)  
0
0
0
10  
20  
30  
40  
50  
0
10  
20  
30  
40  
50  
R
, G
A
T
E TO SOURCE RESISTANCE (
Ω
)  
R
, G
A
T
E TO SOURCE RESISTANCE (
Ω
)  
GS  
GS  
Figure 13.
 
Switching Time vs Gate Resistance  
Figure 14.
 
Switching Time vs Gate Resistance  
Test Circuits and Waveforms  
V
BV  
DSS  
DS  
t
P
V
DS  
L
I
AS  
V
DD  
VARY t
 
TO OBTAIN  
P
+
–
R
REQUIRED PEAK I  
G
AS  
V
DD  
V
GS  
DUT  
t
P
I
0V  
AS  
0
0.01
Ω  
t
AV  
Figure 15.
 
Unclamped Energy Test Circuit  
Figure 16.
 
Unclamped Energy Waveforms  
©2002 Fairchild Semiconductor Corporation  
ISL9N308AD3 / ISL9N308AD3ST Rev C  

Test Circuits and Waveforms
(Continued)  
V
DS  
V
Q
g(TOT)  
DD  
R
L
V
DS  
V
= 10V  
GS  
Q
g(5)  
V
GS  
+
–
V
V
= 5V  
DD  
V
GS  
GS  
V
= 1V  
DUT  
GS  
0
I
g(REF)  
Q
g(TH)  
Q
Q
gd  
gs  
I
g(REF)  
0
Figure 17.
 
Gate Charge Test Circuit  
Figure 18.
 
Gate Charge Waveforms  
V
t
t
DS  
ON  
OFF  
t
d(OFF)  
t
d(ON)  
t
t
f
R
L
r
V
DS  
90%  
90%  
+
–
V
GS  
V
DD  
10%  
10%  
0
DUT  
90%  
50%  
R
GS  
V
GS  
50%  
PULSE WIDTH  
10%  
V
GS  
0
Figure 19.
 
Switching Time Test Circuit  
Figure 20.
 
Switching Time Waveforms  
©2002 Fairchild Semiconductor Corporation  
ISL9N308AD3 / ISL9N308AD3ST Rev C  

Thermal Resistance vs. Mounting Pad Area  
The maximum rated junction temperature, T
 
, and the  
thermal resistance of the heat dissipating path determines  
125  
100  
75  
JM  
R
= 33.32 + 23.84/(0.268+Area)  
θ
JA  
the maximum allowable device power dissipation, P
 
, in an  
DM  
application.  
Therefore the application
’
s ambient  
o
o
temperature, T
 
( C), and thermal resistance R  
( C/W)  
A
θ
JA  
must be reviewed to ensure that T  
is never exceeded.  
JM  
Equation 1 mathematically represents the relationship and  
serves as the basis for establishing the rating of the part.  
(
T  
–
T
)  
JM  
Z
A
(EQ. 1)  
P
=
–
—————————-  
DM  
50  
θ
JA  
In using surface mount devices such as the TO-252  
package, the environment in which it is applied will have a  
significant influence on the part
’
s current and maximum  
25  
0.01  
0.1  
1
2
10  
power dissipation ratings. Precise determination of P  
complex and influenced by many factors:  
is  
AREA, TOP COPPER AREA (in
 
)  
DM  
Figure 21.
 
Thermal Resistance vs Mounting  
Pad Area  
1. Mounting pad area onto which the device is attached and  
whether there is copper on one side or both sides of the  
board.  
2. The number of copper layers and the thickness of the  
board.  
3. The use of external heat sinks.  
4. The use of thermal vias.  
5. Air flow and board orientation.  
6. For non steady state applications, the pulse width, the  
duty cycle and the transient thermal response of the part,  
the board and the environment they are in.  
Fairchild provides thermal information to assist the  
designer
’
s preliminary application evaluation. Figure 21  
defines the R  
for the device as a function of the top  
θ
JA  
copper (component side) area. This is for a horizontally  
positioned FR-4 board with 1oz copper after 1000 seconds  
of steady state power with no air flow. This graph provides  
the necessary information for calculation of the steady state  
junction temperature or power dissipation. Pulse  
applications can be evaluated using the Fairchild device  
Spice thermal model or manually utilizing the normalized  
maximum transient thermal impedance curve.  
Displayed on the curve are R  
values listed in the  
θ
JA  
Electrical Specifications table. The points were chosen to  
depict the compromise between the copper board area, the  
thermal resistance and ultimately the power dissipation,  
P
.
DM  
Thermal resistances corresponding to other copper areas  
can be obtained from Figure 21 or by calculation using  
Equation 2. R  
is defined as the natural log of the area  
θ
JA  
times a coefficient added to a constant. The area, in square  
inches is the top copper area including the gate and source  
pads.  
23.84  
(
0.268 +
Area
)  
R
=
33.32 +
–
———————————
–
–  
(EQ. 2)  
θ
JA  
©2002 Fairchild Semiconductor Corporation  
ISL9N308AD3 / ISL9N308AD3ST Rev C  

PSPICE Electrical Model  
.SUBCKT ISL9N308AD3ST 2 1 3 ;  
rev Dec2000  
CA 12 8
 
1.5e-9  
CB 15 14
 
1.75e-9  
CIN 6 8
 
2.35e-9  
LDRAIN  
DPLCAP  
5
DRAIN  
2
10  
DBODY 7 5 DBODYMOD  
DBREAK 5 11
 
DBREAKMOD  
DPLCAP 10 5 DPLCAPMOD  
RLDRAIN  
RSLC1  
51  
DBREAK  
+
RSLC2  
5
51  
ESLC  
EBREAK 11 7 17
 
18 32.7  
EDS 14 8 5 8
 
1  
EGS 13 8 6 8
 
1  
ESG 6 10 6 8 1  
EVTHRES 6 21 19 8
 
1  
EVTEMP 20 6 18 22 1  
11  
–
50  
+
–
17  
18  
–
DBODY  
RDRAIN  
6
8
EBREAK  
ESG  
EVTHRES  
+
16  
21  
+
–
19  
8
MWEAK  
LG
A
T
E  
EVTEMP  
IT 8 17 1  
RG
A
T
E  
GATE  
1
+
6
–
18  
22  
MMED  
9
20  
LDRAIN 2 5 1e-9  
LGATE 1
 
9 4.58e-9  
LSOURCE 3 7
 
1.47e-9  
MSTRO  
8
RLG
A
T
E  
LSOURCE  
CIN  
SOURCE  
3
7
RSOURCE  
MMED 16 6 8 8 MMEDMOD  
MSTRO 16 6 8 8 MSTROMOD  
MWEAK 16 21 8 8 MWEAKMOD  
RLSOURCE  
S1A  
S2A  
S2B  
RBREAK  
12  
15  
13  
14  
13  
17  
18  
8
RBREAK 17 18 RBREAKMOD 1  
RDRAIN 50 16 RDRAINMOD 2.5e-3  
RGATE 9 20
 
3.4  
RLDRAIN 2 5 10  
RLGATE 1 9 45.8  
RLSOURCE 3 7 14.7  
RSLC1 5 51 RSLCMOD 1e-6  
RSLC2 5 50 1e3  
RSOURCE 8 7 RSOURCEMOD
 
2.55e-3  
RVTHRES 22 8 RVTHRESMOD
 
1  
RVTEMP 18 19 RVTEMPMOD 1  
RVTEMP  
19  
S1B  
13  
CB  
CA  
IT  
14  
–
+
+
VBAT  
6
8
5
8
EGS  
EDS  
+
–
–
8
22  
RVTHRES  
S1A 6 12 13 8 S1AMOD  
S1B 13 12 13 8 S1BMOD  
S2A 6 15 14 13 S2AMOD  
S2B 13 15 14 13 S2BMOD  
VBAT 22 19
 
DC 1  
ESLC 51 50 VALUE={(V(5,51)/ABS(V(5,51)))*(PWR(V(5,51)/(1e-6*200),5))}  
.MODEL DBODYMOD D (IS = 1.9e-11 N = 1.075
 
RS = 4.2e-3
 
TRS1 = 9e-4
 
TRS2 = 1e-6 XTI = 2.2
 
CJO = 1.1e-9
 
TT =
 
8e-11  
M = 0.49)  
.MODEL DBREAKMOD D (RS = 1.7e-1
 
TRS1 = 1e-3
 
TRS2 = -8.9e-6)  
.MODEL DPLCAPMOD D (CJO = 8.2e-10
 
IS = 1e-30
 
N = 10 M = 0.45)  
.MODEL MMEDMOD NMOS (VTO = 1.9 KP = 3 IS=1e-30 N = 10 TOX = 1 L = 1u W = 1u RG = 3.4)  
.MODEL MSTROMOD NMOS (VTO = 2.35KP = 90 IS = 1e-30 N= 10 TOX = 1 L = 1u W = 1u)  
.MODEL MWEAKMOD NMOS (VTO = 1.6 KP = 0.05 IS = 1e-30 N = 10 TOX = 1 L = 1u W = 1u RG = 34 RS = 0.1)  
.MODEL RBREAKMOD RES (TC1 = 1e-3
 
TC2 = -7e-7)  
.MODEL RDRAINMOD RES (TC1 = 7e-3
 
TC2 = 1e-5)  
.MODEL RSLCMOD RES (TC1 = 1e-3 TC2 = 1e-6)  
.MODEL RSOURCEMOD RES (TC1 = 1e-3 TC2 = 1e-6)  
.MODEL RVTHRESMOD RES (TC1 = -2.7e-3 TC2 = -1e-5)  
.MODEL RVTEMPMOD RES (TC1 = -1.8e-3
 
TC2 = 1e-6)  
.MODEL S1AMOD VSWITCH (RON = 1e-5
 
ROFF = 0.1
 
VON = -4.0
 
VOFF= -0.8)  
.MODEL S1BMOD VSWITCH (RON = 1e-5
 
ROFF = 0.1
 
VON = -0.8
 
VOFF= -4.0)  
.MODEL S2AMOD VSWITCH (RON = 1e-5
 
ROFF = 0.1
 
VON = -0.3
 
VOFF= 0.2)  
.MODEL S2BMOD VSWITCH (RON = 1e-5
 
ROFF = 0.1
 
VON = 0.2
 
VOFF= -0.3)  
.ENDS  
For further discussion of the PSPICE model, consult A New PSPICE Sub-Circuit for the Power MOSFET Featuring Global  
Temperature Options; IEEE Power Electronics Specialist Conference Records, 1991, written by William J. Hepp and C. Frank  
Wheatley.  
©2002 Fairchild Semiconductor Corporation  
ISL9N308AD3 / ISL9N308AD3ST Rev C  

SABER Electrical Model  
REV Dec 2000  
template ISL9N308AD3ST n2,n1,n3  
electrical n2,n1,n3  
{
var i iscl  
dp..model dbodymod =
 
(isl = 1.9e-11, nl=1.075 , rs = 4.2e-3, trs1 = 9e-4, trs2 = 1e-6, xti=2.2, cjo = 1.1e-9, tt = 8e-11, m = 0.49,)  
dp..model dbreakmod = (rs =0.17, trs1 = 1e-3, trs2 = -8.9e-6)  
dp..model dplcapmod =
 
(cjo = 8.2e-10, isl=10e-30, nl=10, m=0.45)  
m..model mmedmod = (type=_n, vto = 1.9, kp=3, is=1e-30, tox=1)  
m..model mstrongmod = (type=_n, vto = 2.35, kp = 90, is = 1e-30, tox = 1)  
m..model mweakmod = (type=_n, vto = 1.6, kp = 0.05, is = 1e-30, tox = 1, rs=0.1)  
sw_vcsp..model s1amod =
 
(ron = 1e-5, roff = 0.1, von = -4.0, voff = -0.8)  
sw_vcsp..model s1bmod =
 
(ron =1e-5, roff = 0.1, von = -0.8, voff = -4.0)  
sw_vcsp..model s2amod =
 
(ron = 1e-5, roff = 0.1, von = -0.3, voff = 0.2)  
sw_vcsp..model s2bmod =
 
(ron = 1e-5, roff = 0.1, von = 0.2, voff = -0.3)  
LDRAIN  
DPLCAP  
5
DRAIN  
2
10  
c.ca n12 n8 = 1.5e-9  
c.cb n15 n14 = 1.75e-9  
c.cin n6 n8 = 2.35e-9  
RLDRAIN  
RSLC1  
51  
RSLC2  
ISCL  
dp.dbody n7 n5 = model=dbodymod  
DBREAK  
11  
50  
dp.dbreak n5 n11 = model=dbreakmod  
dp.dplcap n10 n5 = model=dplcapmod  
–
RDRAIN  
6
ESG  
8
DBODY  
EVTHRES  
+
16  
21  
i.it n8 n17 = 1  
+
–
19  
8
MWEAK  
LG
A
T
E  
EVTEMP  
RG
A
T
E  
G
A
T
E  
1
l.ldrain n2 n5 = 1e-9  
l.lgate n1 n9 = 4.58e-9  
l.lsource n3 n7 = 1.47e-9  
+
6
–
18  
22  
EBREAK  
+
MMED  
9
20  
MSTRO  
17  
18  
–
RLGATE  
LSOURCE  
CIN  
SOURCE  
3
8
7
m.mmed n16 n6 n8 n8 = model=mmedmod, l=1u, w=1u  
m.mstrong n16 n6 n8 n8 = model=mstrongmod, l=1u, w=1u  
m.mweak n16 n21 n8 n8 = model=mweakmod, l=1u, w=1u  
RSOURCE  
RLSOURCE  
S1A  
12  
S2A  
RBREAK  
15  
13  
8
14  
13  
res.rbreak n17 n18
 
= 1, tc1 = 1e-3, tc2 = -7e-7  
res.rdrain n50 n16
 
= 2.5e-3, tc1 = 7e-3, tc2 = 1e-5  
res.rgate n9 n20 = 3.4  
17  
18  
RVTEMP  
19  
S1B  
S2B  
13  
CB  
res.rldrain n2 n5 = 10  
CA  
IT  
14  
–
+
+
res.rlgate n1 n9 = 45.8  
res.rlsource n3 n7 = 14.7  
res.rslc1 n5 n51= 1e-6, tc1 = 1e-3, tc2 = 1e-6  
res.rslc2 n5 n50 = 1e3  
VBAT  
6
8
5
8
EGS  
EDS  
+
–
–
8
22  
RVTHRES  
res.rsource n8 n7
 
= 2.55e-3, tc1 = 1e-3, tc2 = 1e-6  
res.rvtemp n18 n19
 
= 1, tc1 = -1.8e-3, tc2 = 1e-6  
res.rvthres n22 n8
 
= 1, tc1 = -2.7e-3, tc2 = -1e-5  
spe.ebreak n11 n7 n17 n18 = 32.7  
spe.eds n14 n8 n5 n8 = 1  
spe.egs n13 n8 n6 n8 = 1  
spe.esg n6 n10 n6 n8 = 1  
spe.evtemp n20 n6 n18 n22 = 1  
spe.evthres n6 n21 n19 n8 = 1  
sw_vcsp.s1a n6 n12 n13 n8 = model=s1amod  
sw_vcsp.s1b n13 n12 n13 n8 = model=s1bmod  
sw_vcsp.s2a n6 n15 n14 n13 = model=s2amod  
sw_vcsp.s2b n13 n15 n14 n13 = model=s2bmod  
v.vbat n22 n19 = dc=1  
equations {  
i (n51->n50) +=iscl  
iscl: v(n51,n50) = ((v(n5,n51)/(1e-9+abs(v(n5,n51))))*((abs(v(n5,n51)*1e-6/200))** 5))  
}
}
©2002 Fairchild Semiconductor Corporation  
ISL9N308AD3 / ISL9N308AD3ST Rev C  

SPICE Thermal Model  
JUNCTION  
th  
REV 23 Sept 2000  
ISL9N308AT  
CTHERM1 th 6 2.0e-4  
CTHERM2 6 5 3.0e-3  
CTHERM3 5 4 3.4e-3  
CTHERM4 4 3 4.0e-3  
CTHERM5 3 2 1.0e-2  
CTHERM6 2 tl 5.0e-2  
RTHERM1  
RTHERM2  
RTHERM3  
RTHERM4  
RTHERM5  
RTHERM6  
CTHERM1  
6
RTHERM1 th 6 1.5e-3  
RTHERM2 6 5 5.5e-3  
RTHERM3 5 4 5.2e-2  
RTHERM4 4 3 3.5e-1  
RTHERM5 3 2 3.8e-1  
RTHERM6 2 tl 4.1e-1  
CTHERM2  
CTHERM3  
CTHERM4  
CTHERM5  
CTHERM6  
5
SABER Thermal Model  
SABER thermal model ISL9N308AT  
template thermal_model th tl  
thermal_c th, tl  
{
ctherm.ctherm1 th 6 = 2.0e-4  
ctherm.ctherm2 6 5 = 3.0e-3  
ctherm.ctherm3 5 4 = 3.4e-3  
ctherm.ctherm4 4 3 = 4.0e-3  
ctherm.ctherm5 3 2 = 1.0e-2  
ctherm.ctherm6 2 tl = 5.0e-2  
4
3
2
rtherm.rtherm1 th 6 = 1.5e-3  
rtherm.rtherm2 6 5 = 5.5e-3  
rtherm.rtherm3 5 4 = 5.2e-2  
rtherm.rtherm4 4 3 = 3.5e-1  
rtherm.rtherm5 3 2 = 3.8e-1  
rtherm.rtherm6 2 tl = 4.1e-1  
}
tl  
CASE  
©2002 Fairchild Semiconductor Corporation  
ISL9N308AD3 / ISL9N308AD3ST Rev C  

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This datasheet contains the design specifications for  
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Rev. H7