March 2003
2003 Fairchild Semiconductor Corporation
FDW254PZ Rev C (W)
FDW254PZ
P-Channel 1.8V Specified PowerTrench
MOSFET
General Description
This P-Channel 1.8V specified MOSFET is a rugged
gate version of Fairchild Semiconductor's advanced
PowerTrench process. It has been optimized for power
management applications with a wide range of gate
drive voltage (1.8V 8V).
Applications
Load switch
Motor drive
DC/DC conversion
Power management
Features
9.2 A, 20 V.
R
DS(ON)
= 12 m
@ V
GS
= 4.5 V
R
DS(ON)
= 15 m
@ V
GS
= 2.5 V
R
DS(ON)
= 21.5 m
@ V
GS
= 1.8 V
Rds ratings for use with 1.8 V logic
ESD protection diode
Low gate charge
High performance trench technology for extremely
low R
DS(ON)
Low profile TSSOP-8 package
D
S
S
G
D
S
S
D
TSSOP-8
Pin 1
Absolute Maximum Ratings
T
A
=25
o
C unless otherwise noted
Symbol
Parameter
Ratings
Units
V
DSS
Drain-Source Voltage
20
V
V
GSS
Gate-Source Voltage
8
V
I
D
Drain Current Continuous
(Note 1)
9.2
A
Pulsed
50
P
D
Power Dissipation
(Note 1a)
1.4
W
(Note 1b)
1
T
J
, T
STG
Operating and Storage Junction Temperature Range
55 to +150
C
Thermal Characteristics
R
JA
Thermal Resistance, Junction-to-Ambient
(Note 1a)
96
C/W
(Note 1b)
208
Package Marking and Ordering Information
Device Marking
Device
Reel Size
Tape width
Quantity
254PZ
FDW254PZ
13''
12mm
3000 units
FDW254PZ
4
3
2
1
5
6
7
8
FDW254PZ Rev. C (W)
Electrical Characteristics
T
A
= 25C unless otherwise noted
Symbol
Parameter
Test Conditions
Min Typ Max Units
Off Characteristics
BV
DSS
DrainSource Breakdown Voltage
V
GS
= 0 V,
I
D
= 250
A
20
V
BV
DSS
T
J
Breakdown Voltage Temperature
Coefficient
I
D
= 250
A, Referenced to 25
C
11
mV/
C
I
DSS
Zero Gate Voltage Drain Current
V
DS
= 16 V,
V
GS
= 0 V
1
A
I
GSS
GateBody Leakage
V
GS
=
8 V,
V
DS
= 0 V
10
A
On Characteristics
(Note 2)
V
GS(th)
Gate Threshold Voltage
V
DS
= V
GS
,
I
D
= 250
A
0.4
0.6
1.5
V
V
GS(th)
T
J
Gate Threshold Voltage
Temperature Coefficient
I
D
= 250
A, Referenced to 25
C
2
mV/
C
R
DS(on)
Static DrainSource
OnResistance
V
GS
= 4.5 V, I
D
= 9.2 A
V
GS
= 2.5 V, I
D
= 7.9 A
V
GS
= 1.8 V, I
D
= 6.5 A
V
GS
=4.5 V, I
D
=9.2 A, T
J
=125
C
9
11
14
12
12
15
21.5
18
m
I
D(on)
OnState Drain Current
V
GS
= 4.5 V,
V
DS
= 5 V
50
A
g
FS
Forward Transconductance
V
DS
= 5 V,
I
D
= 9.2 A
54
S
Dynamic Characteristics
C
iss
Input Capacitance
5880
pF
C
oss
Output Capacitance
990
pF
C
rss
Reverse Transfer Capacitance
V
DS
= 10 V, V
GS
= 0 V,
f = 1.0 MHz
560
pF
R
G
Gate Resistance
V
GS
= 15 mV,
f = 1.0 MHz
4.9
Switching Characteristics
(Note 2)
t
d(on)
TurnOn Delay Time
15
27
ns
t
r
TurnOn Rise Time
15
27
ns
t
d(off)
TurnOff Delay Time
210
336
ns
t
f
TurnOff Fall Time
V
DD
= 10 V,
I
D
= 1 A,
V
GS
= 4.5 V, R
GEN
= 6
100
160
ns
Q
g
Total Gate Charge
60
96
nC
Q
gs
GateSource Charge
7
nC
Q
gd
GateDrain Charge
V
DS
= 10 V,
I
D
= 9.2 A,
V
GS
= 4.5 V
13
nC
DrainSource Diode Characteristics and Maximum Ratings
I
S
Maximum Continuous DrainSource Diode Forward Current
1.2
A
V
SD
DrainSource Diode Forward
Voltage
V
GS
= 0 V, I
S
= 1.2 A
(Note 2)
0.5
1.2
V
t
rr
Reverse Recovery Time
35
ns
Q
rr
Reverse Recovery Charge
I
F
= 9.2 A,
d
iF
/d
t
= 100 A/s
21
nC
Notes:
1.
R
JA
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
surface of the drain pins. R
JC
is guaranteed by design while R
CA
is determined by the user's board design.
a)
R
JA
is 96C/W (steady state) when mounted on a 1 inch
2
copper pad on FR-4.
b)
R
JA
is 208C/W (steady state) when mounted on a minimum copper pad on FR-4.
2. Pulse Test: Pulse Width <
s, Duty cycle < 2.0%.
FDW254PZ
FDW254PZ Rev. C (W)
Typical Characteristics
0
10
20
30
40
50
60
0
0.5
1
1.5
2
2.5
-V
DS
, DRAIN TO SOURCE VOLTAGE (V)
-I
D
, DRAIN CURRENT (A)
V
GS
= -4.5V
-2.5V
-2.0V
-1.8V
-3.0V
-3.5V
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
0
10
20
30
40
50
60
-I
D
, DRAIN CURRENT (A)
R
DS(ON)
, NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
V
GS
= - 1.8V
-4.5V
-3.0V
-3.5V
-2.5V
-2.0V
Figure 1. On-Region Characteristics.
Figure 2. On-Resistance Variation with
Drain Current and Gate Voltage.
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
-50
-25
0
25
50
75
100
125
150
T
J
, JUNCTION TEMPERATURE (
o
C)
R
DS(ON)
, NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
I
D
= -9.2A
V
GS
= - 4.5V
0.005
0.01
0.015
0.02
0.025
0.03
0.035
1
2
3
4
5
-V
GS
, GATE TO SOURCE VOLTAGE (V)
R
DS(ON)
, ON-RESISTANCE (OHM)
I
D
= -4.6A
T
A
= 125
o
C
T
A
= 25
o
C
Figure 3. On-Resistance Variation
withTemperature.
Figure 4. On-Resistance Variation with
Gate-to-Source Voltage.
0
10
20
30
40
50
60
0.5
1
1.5
2
2.5
-V
GS
, GATE TO SOURCE VOLTAGE (V)
-I
D
, DRAIN CURRENT (A)
T
A
= -55
o
C
25
o
C
125
o
C
V
DS
= -5V
0.0001
0.001
0.01
0.1
1
10
0
0.2
0.4
0.6
0.8
1
-V
SD
,
BODY DIODE FORWARD VOLTAGE (V)
-I
S
, REVERSE DRAIN CURRENT (A)
V
GS
= 0V
T
A
= 125
o
C
25
o
C
-55
o
C
Figure 5. Transfer Characteristics.
Figure 6. Body Diode Forward Voltage Variation
with Source Current and Temperature.
FDW254PZ
FDW254PZ Rev. C (W)
Typical Characteristics
0
1
2
3
4
5
0
10
20
30
40
50
60
Q
g
, GATE CHARGE (nC)
-V
GS
, GATE-SOURCE VOLTAGE (V)
I
D
= -9.2A
V
DS
= -5V
-10V
-15V
0
1000
2000
3000
4000
5000
6000
7000
8000
0
5
10
15
20
-V
DS
, DRAIN TO SOURCE VOLTAGE (V)
CAPACITANCE (pF)
C
ISS
C
OSS
C
RSS
f = 1 MHz
V
GS
= 0 V
Figure 7. Gate Charge Characteristics.
Figure 8. Capacitance Characteristics.
0.01
0.1
1
10
100
0.01
0.1
1
10
100
-V
DS
, DRAIN-SOURCE VOLTAGE (V)
-I
D
, DRAIN CURRENT (A)
DC
10s
1s
100ms
100
s
R
DS(ON)
LIMIT
V
GS
= -4.5V
SINGLE PULSE
R
JA
= 114
o
C/W
T
A
= 25
o
C
10ms
1ms
0
10
20
30
40
50
0.01
0.1
1
10
100
1000
t
1
, TIME (sec)
P(pk), PEAK TRANSIENT POWER (W)
SINGLE PULSE
R
JA
= 114C/W
T
A
= 25C
Figure 9. Maximum Safe Operating Area.
Figure 10. Single Pulse Maximum
Power Dissipation.
0.001
0.01
0.1
1
0.0001
0.001
0.01
0.1
1
10
100
1000
t
1
, TIME (sec)
r(t), NORMALIZED EFFECTIVE
TRANSIENT THERMAL RESISTANCE
R
JA
(t) = r(t) * R
JA
R
JA
= 114
o
C/W
T
J
- T
A
= P * R
JA
(t)
Duty Cycle, D = t
1
/ t
2
P(pk)
t
1
t
2
SINGLE PULSE
0.01
0.02
0.05
0.1
0.2
D = 0.5
Figure 11. Transient Thermal Response Curve.
Thermal characterization performed using the conditions described in Note 1b.
Transient thermal response will change depending on the circuit board design.
FDW254PZ
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
LIFE SUPPORT POLICY
FAIRCHILDS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, or (c) whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Preliminary
No Identification Needed
Obsolete
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
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In Design
First Production
Full Production
Not In Production
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