STB70NF3LL
N-channel 30V - 0.0075
Ω
- 70A - D
2
PAK
Low gate charge STripFET™ II Power MOSFET
General features
Type
STB70NF3LL
V
DSS
30V
R
DS(on)
< 0.0095
Ω
■
■
■
Optimal R
DS(on)
x Qg trade-off @ 4.5V
Conduction losses reduced
Switching losses reduced
I
D
70A
Description
This application specific Power MOSFET is the third genaration of STMicroelectronis unique
"Single Feature Size™" strip-based process. The resulting transistor shows the best trade-off between on-resistance and gate charge. When used as high and low side in buck regulators, it gives the best performance in terms of both conduction and switching losses. This is extremely important for motherboards where fast switching and high efficiency are of paramount importance.
Applications
■ Switching application
1
3
D²PAK
Internal schematic diagram
Order codes
Part number
STB70NF3LLT4
July 2006
Marking
B70NF3LL@
Rev 7
Package
D
2
PAK
Packaging
Tape & reel
1/13 www.st.com
13
5
6
3
4
1
2
Contents
Contents
STB70NF3LL
Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1
Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Packing mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2/13
STB70NF3LL Electrical ratings
Table 1.
Symbol
Absolute maximum ratings
Parameter
V
DS
V
DGR
V
GS
I
D
(1)
I
D
I
DM
(2)
P
TOT
Drain-source voltage (V
GS
Drain-gate voltage (R
GS
Gate- source voltage
= 0)
= 20 k Ω )
Drain current (continuous) at T
Drain current (continuous) at T
Drain current (pulsed)
C
C
= 25°C
= 100°C
Total dissipation at T
C
= 25°C
Derating factor dv/dt
(3)
E
AS
(4)
T stg
T
J
Peak diode recovery voltage slope
Single pulse avalanche energy
Storage temperature
Operating junction temperature
1.
Current limited by the package
2.
Pulse width limited by safe operating area
3.
I
SD
≤ ≤
DD
≤
(BR)DSS
, T
J
T
JMAX
4.
Starting T
J
= 25 o
C, I
D
= 35A, V
DD
= 25V
Table 2.
Symbol
Thermal data
Parameter
R thJC
R thJA
T l
Thermal resistance junction-case Max
Thermal resistance junction-ambient Max
Maximum lead temperature for soldering purpose
Value
30
30
± 16
70
50
280
100
0.67
5.5
500
-55 to 175
Unit
V
V
V
A
W
A
A
W/°C
V/ns mJ
°C
Value
1.5
62.5
300
Unit
°C/W
°C/W
°C
3/13
Electrical characteristics STB70NF3LL
(T
CASE
=25°C unless otherwise specified)
Table 3.
Symbol
On/off states
Parameter Test conditions
V
(BR)DSS
Drain-source
Breakdown voltage
V
R
I
I
DSS
GSS
GS(th)
DS(on)
I
D
= 250 µA, V
GS
= 0
Zero gate voltage
Drain current (V
GS
= 0)
V
DS
= Max rating
V
DS
= Max rating
T
C
= 125°C
Gate-body leakage
Current (V
DS
= 0)
V
GS
= ± 16 V
Gate threshold voltage V
DS
= V
GS
I
D
= 250µA
Static drain-source on resistance
V
GS
= 10V
V
GS
= 4.5V
I
D
= 35A
I
D
= 18A
Min
30
1
Typ Max Unit
1
10
±100
0.0075
0.010
0.0095
0.012
V
µA
µA nA
V
Ω
Ω
Table 4.
Symbol g fs
C iss
C oss
C rss
Dynamic
Parameter
Forward
Transconductance
Input capacitance
Output capacitance
Reverse transfer capacitance
V
DS
Test conditions
= 15V I
D
= 35A
V
DS
= 25V f = 1MHz V
GS
= 0
Min Typ Max Unit
25 S
1650
540
130 pF pF pF
4/13
STB70NF3LL Electrical characteristics
Table 5.
Symbol t d(on) t r
Q g
Q gs
Q gd t d(off) t f
Switching times
Parameter
Turn-on delay time
Rise time
Total gate charge
Gate-source charge
Gate-drain charge
Turn-off delay time
Fall time
Test conditions
V
DD
= 15V I
D
= 35A
R
G
= 4.7
Ω V
GS
= 4.5V
(Resistive Load Figure 16
)
Min
V
DD
= 15V I
D
= 70A
V
GS
= 4.5V
V
DD
= 15 V
R
G
I
D
= 35 A
= 4.7
Ω, V
GS
= 4.5 V
(Resistive Load Figure 16
)
Typ
23
165
Max Unit ns ns
24
8.5
12
27
28
33 nC nC nC ns ns
Table 6.
Symbol
Source drain diode
Parameter Test conditions
I
I
SD
SDM
(1)
Source-drain current
Source-drain current
(pulsed)
V
SD
(2) t rr
Q rr
I
RRM
Forward on voltage
Reverse recovery time
Reverse recovery charge
Reverse recovery current
I
SD
= 70 A V
GS
= 0
I
SD
= 70 A di/dt = 100A/µs
V
DD
= 20 V T
J
= 150°C
(see test circuit Figure 14
)
1.
Pulse width limited by safe operating area.
2.
Pulsed: Pulse duration = 300 µs, duty cycle 1.5 %.
Min Typ Max
70
280
1.3
42
52
2.5
Unit
A
A
V ns nC
A
5/13
Electrical characteristics
Figure 1.
Safe operating area Figure 2.
Thermal impedance
STB70NF3LL
Figure 3.
Output characterisics Figure 4.
Transfer characteristics
Figure 5.
Source-drain diode forward characteristics
Figure 6.
Static drain-source on resistance
6/13
STB70NF3LL Electrical characteristics
Figure 7.
Gate charge vs gate-source voltage Figure 8.
Capacitance variations
Figure 9.
Normalized gate threshold voltage vs temperature
Figure 10. Normalized on resistance vs temperature
Figure 11. Normalized breakdown vs temperature
7/13
Test circuit
3 Test circuit
Figure 12. Switching times test circuit for resistive load
Figure 13. Gate charge test circuit
STB70NF3LL
Figure 14. Test circuit for inductive load switching and diode recovery times
Figure 15. Unclamped Inductive load test circuit
Figure 16. Unclamped inductive waveform
8/13
STB70NF3LL
4 Package mechanical data
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect . The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com
9/13
Package mechanical data
DIM.
L
L2
L3
M
D1
E
E1
G
R
V2
B2
C
C2
D
A
A1
A2
B
10
4.88
15
1.27
1.4
2.4
0.7
1.14
0.45
1.23
8.95
MIN.
4.4
2.49
0.03
0º
D
2
PAK MECHANICAL DATA
TO-247 MECHANICAL DATA
mm.
TYP
0.93
1.7
0.6
1.36
9.35
MAX.
4.6
2.69
0.23
MIN.
0.173
0.098
0.001
0.027
0.044
0.017
0.048
0.352
8
10.4
0.393
8.5
5.28
15.85
1.4
1.75
3.2
0.192
0.590
0.050
0.055
0.094
0.4
4º inch
TYP.
0.315
0.334
0.015
STB70NF3LL
MAX.
0.181
0.106
0.009
0.036
0.067
0.023
0.053
0.368
0.208
0.625
0.055
0.068
0.126
1
10/13
STB70NF3LL
5 Packing mechanical data
D
2
PAK FOOTPRINT
Packing mechanical data
E
F
K0
P0
A0
B0
D
D1
P1
P2
R
T
W
TAPE MECHANICAL DATA
DIM.
mm inch
MIN.
MAX.
MIN.
MAX.
10.5
10.7
0.413 0.421
15.7
15.9
0.618 0.626
1.5
1.6
0.059 0.063
1.59
1.61
0.062 0.063
1.65
1.85
0.065 0.073
11.4
11.6
0.449 0.456
4.8
3.9
5.0
0.189 0.197
4.1
0.153 0.161
11.9
12.1
0.468 0.476
1.9
2.1
0.075 0.082
50 1.574
0.25
0.35 0.0098 0.0137
23.7
24.3
0.933 0.956
* on sales type
TAPE AND REEL SHIPMENT
G
N
T
A
B
C
D
REEL MECHANICAL DATA
DIM.
mm inch
MIN.
MAX.
MIN.
MAX.
330 12.992
1.5
0.059
12.8
13.2
0.504
0.520
20.2
0795
24.4
26.4
0.960
1.039
100 3.937
30.4
1.197
BASE QTY
1000
BULK QTY
1000
11/13
Revision history
Table 7.
Date
Revision history
Revision
21-Jun-2004
25-Jul-2006
6
7
Changes
Preliminary version
New template, no content change
STB70NF3LL
12/13
STB70NF3LL
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