BUK71/7905-40ATE
TrenchPLUS standard level FET
Rev. 01 — 20 August 2003
Product data
1. Product profile
1.1 Description
N-channel enhancement mode field-effect power transistor in a plastic package using
TrenchMOS™ technology, featuring both very low on-state resistance and
TrenchPLUS diodes for temperature sensing and ESD protection.
Product availability:
BUK7105-40ATE in SOT426 (D
2
-PAK)
BUK7905-40ATE in SOT263B (TO-220).
1.2 Features
s
Integrated temperature sensor
s
Electrostatic discharge protection
s
Q101 compliant
s
Standard level compatible.
1.3 Applications
s
Variable Valve Timing for engines
s
Electrical Power Assisted Steering.
1.4 Quick reference data
s
V
DS
≤
40 V
s
R
DSon
= 4.5 mΩ (typ)
s
V
F
= 658 mV (typ)
s
S
F
=
−1.54
mV/K (typ).
2. Pinning information
Table 1:
Pin
1
2
3
4
5
mb
Pinning - SOT426 and SOT263B, simplified outline and symbol
Simplified outline
mb
mb
Description
gate (g)
anode (a)
drain (d)
cathode (k)
source (s)
mounting base;
connected to drain (d)
Symbol
d
a
g
1 2 3 4 5
MBL317
s
k
Front view
MBK127
1
5
SOT426 (D
2
-PAK)
MBL263
SOT263B (TO-220)
Philips Semiconductors
BUK71/7905-40ATE
TrenchPLUS standard level FET
3. Limiting values
Table 2: Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
V
DS
V
DGS
V
GS
I
D
Parameter
drain-source voltage (DC)
drain-gate voltage (DC)
gate-source voltage (DC)
drain current (DC)
T
mb
= 25
°C;
V
GS
= 10 V;
Figure 2
and
3
T
mb
= 100
°C;
V
GS
= 10 V;
Figure 2
I
DM
P
tot
I
GS(CL)
T
stg
T
j
peak drain current
total power dissipation
gate-source clamping current
storage temperature
junction temperature
T
mb
= 25
°C;
pulsed; t
p
≤
10
µs;
Figure 3
T
mb
= 25
°C;
Figure 1
continuous
t
p
= 5 ms;
δ
= 0.01
[1]
[2]
[2]
Conditions
Min
-
-
-
-
-
-
-
-
-
-
−55
−55
-
Max
40
40
±20
155
75
75
620
272
10
50
+175
+175
±100
Unit
V
V
V
A
A
A
A
W
mA
mA
°C
°C
V
V
isol(FET-TSD)
FET to temperature sense diode
isolation voltage
Source-drain diode
I
DR
I
DRM
E
DS(AL)S
reverse drain current (DC)
peak reverse drain current
non-repetitive avalanche energy
T
mb
= 25
°C
T
mb
= 25
°C;
pulsed; t
p
≤
10
µs
unclamped inductive load; I
D
= 75 A;
V
DS
≤
40 V; V
GS
= 10 V;
R
GS
= 50
Ω;
starting T
j
= 25
°C
[1]
[2]
-
-
-
-
155
75
620
1.46
A
A
A
J
Avalanche ruggedness
Electrostatic discharge
V
esd
electrostatic discharge voltage, pins Human Body Model; C = 100 pF;
1,3,5
R = 1.5 kΩ
-
6
kV
[1]
[2]
Current is limited by power dissipation chip rating
Continuous current is limited by package.
9397 750 11694
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Product data
Rev. 01 — 20 August 2003
2 of 16
Philips Semiconductors
BUK71/7905-40ATE
TrenchPLUS standard level FET
120
Pder
(%)
80
03na19
160
ID
(A)
120
03ng16
80
40
40
Capped at 75A due to package
0
0
50
100
150
200
Tmb
(°C)
0
0
50
100
150
Tmb (ºC)
200
P
tot
P
der
=
----------------------
×
100%
-
P
°
tot
(
25 C
)
V
GS
≥
10 V
Fig 1. Normalized total power dissipation as a
function of mounting base temperature.
Fig 2. Continuous drain current as a function of
mounting base temperature.
103
ID
(A)
03ng17
Limit RDSon = VDS/ID
tp = 10 µs
102
Capped at 75 A due to package
100 µs
1 ms
DC
10
100 ms
10 ms
1
1
10
VDS (V)
102
T
mb
= 25
°C;
I
DM
single pulse.
Fig 3. Safe operating area; continuous and peak drain currents as a function of drain-source voltage.
9397 750 11694
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Product data
Rev. 01 — 20 August 2003
3 of 16
Philips Semiconductors
BUK71/7905-40ATE
TrenchPLUS standard level FET
4. Thermal characteristics
Table 3:
Symbol
R
th(j-a)
Thermal characteristics
Parameter
thermal resistance from junction to ambient
SOT263B
SOT426
R
th(j-mb)
thermal resistance from junction to mounting
base
vertical in still air
mounted on printed circuit
board; minimum footprint
Figure 4
-
-
-
60
50
-
-
-
0.55
K/W
K/W
K/W
Conditions
Min
Typ
Max
Unit
4.1 Transient thermal impedance
1
Z
th(j-mb)
(K/W)
03ni64
δ
= 0.5
10-1
0.2
0.1
0.05
0.02
10-2
P
δ
=
tp
T
single shot
tp
T
t
10-3
10-6
10-5
10-4
10-3
10-2
10-1
1
tp (s)
10
Fig 4. Transient thermal impedance from junction to mounting base as a function of pulse duration.
9397 750 11694
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Product data
Rev. 01 — 20 August 2003
4 of 16
Philips Semiconductors
BUK71/7905-40ATE
TrenchPLUS standard level FET
5. Characteristics
Table 4: Characteristics
T
j
= 25
°
C unless otherwise specified.
Symbol
V
(BR)DSS
Parameter
drain-source breakdown
voltage
Conditions
I
D
= 0.25 mA; V
GS
= 0 V
T
j
= 25
°C
T
j
=
−55 °C
V
GS(th)
gate-source threshold voltage I
D
= 1 mA; V
DS
= V
GS
;
Figure 9
T
j
= 25
°C
T
j
= 175
°C
T
j
=
−55 °C
I
DSS
drain-source leakage current
V
DS
= 40 V; V
GS
= 0 V
T
j
= 25
°C
T
j
= 175
°C
V
(BR)GSS
I
GSS
gate-source breakdown
voltage
gate-source leakage current
I
G
=
±1
mA;
−55 °C
< T
j
< 175
°C
V
GS
=
±10
V; V
DS
= 0 V
T
j
= 25
°C
T
j
= 175
°C
R
DSon
drain-source on-state
resistance
V
GS
= 10 V; I
D
= 50 A;
Figure 7
and
8
T
j
= 25
°C
T
j
= 175
°C
V
F
S
F
V
hys
forward voltage, temperature
sense diode
temperature coefficient
temperature sense diode
temperature sense diode
forward voltage hysteresis
total gate charge
gate-source charge
gate-drain (Miller) charge
input capacitance
output capacitance
reverse transfer capacitance
turn-on delay time
rise time
turn-off delay time
fall time
V
DS
= 30 V; R
L
= 1.2
Ω;
V
GS
= 10 V; R
G
= 10
Ω
V
GS
= 0 V; V
DS
= 25 V;
f = 1 MHz;
Figure 12
I
F
= 250
µA
I
F
= 250
µA;
−55 °C
< T
j
< 175
°C
125
µA
< I
F
< 250
µA
-
-
648
−1.4
25
4.5
-
658
−1.54
32
5
9.5
668
−1.68
50
mΩ
mΩ
mV
mV/K
mV
-
-
22
-
1000
10
nA
µA
-
-
20
0.1
-
22
10
250
-
µA
µA
V
2
1
-
3
-
-
4
-
4.4
V
V
V
40
36
-
-
-
-
V
V
Min
Typ
Max
Unit
Static characteristics
Dynamic characteristics
Q
g(tot)
Q
gs
Q
gd
C
iss
C
oss
C
rss
t
d(on)
t
r
t
d(off)
t
f
V
GS
= 10V; V
DS
= 32 V;
I
D
= 25 A;
Figure 14
-
-
-
-
-
-
-
-
-
-
118
16
57
4500
1500
960
35
115
155
110
-
-
-
-
-
-
-
-
-
-
nC
nC
nC
pF
pF
pF
nS
nS
nS
nS
9397 750 11694
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Product data
Rev. 01 — 20 August 2003
5 of 16
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