FDQ7238AS_08 FAIRCHILD [Fairchild Semiconductor], FDQ7238AS_08 Datasheet - Page 3

• Manufacturer Part Number: FDQ7238AS_08
• Description: Dual Notebook Power Supply N-Channel PowerTrench in SO-14 Package
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

I
V
t
Q
t
Q
Switching Characteristics
t
t
t
t
t
t
t
t
Q
Q
Q
Q
Drain-Source Diode Characteristics and Maximum Ratings
Symbol
Electrical Characteristics
S
rr
rr
2. Pulse Test: Pulse Width < 300µs, Duty Cycle < 2.0%
3
4
d(on)
r
d(off)
f
d(on)
r
d(off)
f
NOTE :
Scale 1 : 1 on letter size paper
SD
g(TOT)
g(TOT)
gs
gd
rr
rr
1.
R
surface of the drain pins. R
Turn-On Delay Time
Turn-On Rise Time
Turn-Off Delay Time
Turn-Off Fall Time
Turn-On Delay Time
Turn-On Rise Time
Turn-Off Delay Time
Turn-Off Fall Time
Total Gate Charge, V
Total Gate Charge, V
Gate-Source Charge
Gate-Drain Charge
Maximum Continuous Drain-Source Diode Forward Current
Drain-Source Diode Forward
Voltage
Diode Reverse Recovery Time
Diode Reverse Recovery Charge
Diode Reverse Recovery Time
Diode Reverse Recovery Charge
θJA
is the sum of the junction-to-case and case-to-ambient thermal resistance where the case thermal reference is defined as the solder mounting
Parameter
θJC
GS
GS
is guaranteed by design while R
a)
b)
= 10V
= 5V
(Note 2)
68°C/W when
mounted on a 1in
of 2 oz copper (Q1).
52°C/W when
mounted on a 1in
of 2 oz copper (Q2).
V
V
V
V
Q2
V
Q1
V
V
V
V
I
dI
I
dI
F
F
DD
GS
DD
GS
DS
DS
GS
GS
GS
F
F
= 14A
= 11A
/dt = 300 A/µs
/dt = 100 A/µs
T
= 15 V, I
= 15 V, I
= 15 V,
= 10V,
= 15 V,
= 4.5V,
= 0 V,
= 0 V,
= 0 V,
A
= 25°C unless otherwise noted
2
2
Test Conditions
pad
pad
θCA
D
D
= 14A
= 11A
is determined by the user's board design.
I
I
I
S
S
S
I
R
I
R
D
D
= 3.4 A
= 1.9 A
= 2.1 A
GEN
GEN
= 1 A,
= 1 A,
= 6 Ω
= 6 Ω
(Note 2)
(Note 2)
(Note 2)
Type Min Typ Max Units
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
c)
d)
118°C/W when mounted
on a minimum pad of 2 oz
copper (Q1).
94°C/W when mounted on
a minimum pad of 2 oz
copper (Q2).
4.1
2.7
4.9
3.3
0.5
0.4
0.7
12
13
30
27
19
17
11
18
15
28
16
13
28
17
15
22
15
16
9
5
4
9
9
5
FDQ7238AS Rev A1(X)
3.4
2.1
0.7
1.2
21
18
23
10
49
43
35
30
20
32
26
44
29
23
18
39
24
21
19
8
nC
nC
nC
nC
nC
nC
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
A
V