FAIRCHILD FDU6512A

FDD6512A/FDU6512A
20V N-Channel PowerTrench MOSFET
General Description
Features
This N-Channel MOSFET has been designed
specifically to improve the overall efficiency of DC/DC
converters using either synchronous or conventional
switching PWM controllers. It has been optimized for
low gate charge, low RDS( ON) , fast switching speed and
extremely low RDS(ON) in a small package.
• 36 A, 20 V
RDS(ON) = 21 mΩ @ VGS = 4.5 V
RDS(ON) = 31 mΩ @ VGS = 2.5 V
• Low gate charge (12 nC typical)
• Fast switching
Applications
• High performance trench technology for extremely
• DC/DC converter
low RDS(ON)
• Motor drives
D
D
G
S
I-PAK
(TO-251AA)
D-PAK
TO-252
(TO-252)
G
G D S
Absolute Maximum Ratings
Symbol
S
o
TA=25 C unless otherwise noted
Parameter
Ratings
Units
VDSS
Drain-Source Voltage
20
V
VGSS
Gate-Source Voltage
± 12
V
ID
Continuous Drain Current @TC=25°C
(Note 3)
36
A
@TA=25°C
(Note 1a)
10.7
Pulsed
(Note 1a)
100
PD
Power Dissipation
TJ, TSTG
@TC=25°C
(Note 3)
43
@TA=25°C
(Note 1a)
3.8
@TA=25°C
(Note 1b)
W
1.6
Operating and Storage Junction Temperature Range
–55 to +175
°C
Thermal Characteristics
RθJC
Thermal Resistance, Junction-to-Case
(Note 1)
3.5
°C/W
RθJA
Thermal Resistance, Junction-to-Ambient
(Note 1a)
40
°C/W
RθJA
Thermal Resistance, Junction-to-Ambient
(Note 1b)
96
°C/W
Package Marking and Ordering Information
Device Marking
Device
Package
Reel Size
Tape width
Quantity
FDD6512A
FDD6512A
D-PAK (TO-252)
13’’
12mm
2500 units
FDU6512A
FDU6512A
I-PAK (TO-251)
Tube
N/A
75
2001 Fairchild Semiconductor Corp.
FDD6512A/FDU6512A Rev B (W)
FDD6512A/FDU6512A
November 2001
Symbol
TA = 25°C unless otherwise noted
Parameter
Test Conditions
Min Typ
Max Units
Drain-Source Avalanche Ratings (Note 2)
EAS
Drain-Source Avalanche Energy
IAS
Drain-Source Avalanche Current
Single Pulse, VDD = 10 V, ID=10A
90
mJ
10
A
Off Characteristics
BVDSS
∆BVDSS
∆TJ
IDSS
Drain–Source Breakdown Voltage
Breakdown Voltage Temperature
Coefficient
VGS = 0 V, ID = 250 µA
Zero Gate Voltage Drain Current
VDS = 16 V,
IGSSF
Gate–Body Leakage, Forward
VGS = 12 V,
VDS = 0 V
100
nA
IGSSR
Gate–Body Leakage, Reverse
VGS = –12 V,
VDS = 0 V
–100
nA
0.8
–3.2
1.5
V
mV/°C
16
21
22
21
31
29
mΩ
On Characteristics
VGS(th)
∆VGS(th)
∆TJ
RDS(on)
20
V
ID = 250 µA,Referenced to 25°C
14
VGS = 0 V
mV/°C
µA
10
(Note 2)
Gate Threshold Voltage
Gate Threshold Voltage
Temperature Coefficient
VDS = VGS, ID = 250 µA
ID = 250 µA, Referenced to 25°C
Static Drain–Source
On–Resistance
ID(on)
On–State Drain Current
VGS = 4.5 V, ID = 10.7 A
VGS = 2.5 V, ID = 9.1 A
VGS = 4.5 V, ID = 10.7 A, TJ=125°C
VGS = 4.5 V,
VDS = 5 V
gFS
Forward Transconductance
VDS = 5 V,
0.6
50
A
ID = 10.7 A
50
S
1082
pF
277
pF
130
pF
Dynamic Characteristics
Ciss
Input Capacitance
Coss
Output Capacitance
Crss
Reverse Transfer Capacitance
Switching Characteristics
td(on)
Turn–On Delay Time
tr
Turn–On Rise Time
td(off)
Turn–Off Delay Time
tf
Turn–Off Fall Time
Qg
Total Gate Charge
Qgs
Gate–Source Charge
Qgd
Gate–Drain Charge
VDS = 10 V,
f = 1.0 MHz
V GS = 0 V,
VDD = 10 V,
VGS = 4.5 V,
ID = 1 A,
RGEN = 6 Ω
(Note 2)
VDS = 10V,
VGS = 4.5 V
ID = 10.7 A,
8
16
ns
8
16
ns
24
38
ns
8
16
ns
12
19
nC
2
nC
3
nC
Drain–Source Diode Characteristics and Maximum Ratings
IS
Maximum Continuous Drain–Source Diode Forward Current
VSD
Drain–Source Diode Forward Voltage
VGS = 0 V,
IS = 2.3 A
(Note 2)
0.72
2.3
A
1.2
V
Notes:
1. RθJA 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. RθJC is guaranteed by design while RθCA is determined by the user's board design.
a) RθJA = 40°C/W when mounted on a
2
1in pad of 2 oz copper
b) RθJA = 96°C/W when mounted
on a minimum pad.
Scale 1 : 1 on letter size paper
2. Pulse Test: Pulse Width < 300µs, Duty Cycle < 2.0%
3. Maximum current is calculated as:
PD
R DS(ON)
where PD is maximum power dissipation at TC = 25°C and RDS(on) is at TJ(max) and VGS = 10V. Package current limitation is 21A
FDD6512A/FDU6512A Rev. B (W)
FDD6512A/FDU6512A
Electrical Characteristics
FDD6512A/FDU6512A
Typical Characteristics
2.5
30
ID, DRAIN CURRENT (A)
3.0V
3.5V
25
RDS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
VGS = 4.5V
2.5V
2.0V
20
15
10
5
2
VGS = 2.0V
1.5
2.5V
3.0V
3.5V
4.5V
0.5
0
0
0.5
1
1.5
2
2.5
0
3
5
10
15
20
25
30
ID, DRAIN CURRENT (A)
VDS, DRAIN-SOURCE VOLTAGE (V)
Figure 1. On-Region Characteristics
Figure 2. On-Resistance Variation with
Drain Current and Gate Voltage
0.07
1.8
ID = 10.7A
VGS = 4.5V
1.6
ID = 5.4 A
RDS(ON), ON-RESISTANCE (OHM)
RDS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
4.0V
1
1.4
1.2
1
0.8
0.06
0.05
0.04
TA =
o
0.03
125 C
0.02
o
TA = 25 C
0.01
0.6
-50
-25
0
25
50
75
100
125
150
0
175
1
o
2
TJ, JUNCTION TEMPERATURE ( C)
Figure 3. On-Resistance Variation
withTemperature
4
5
Figure 4. On-Resistance Variation with
Gate-to-Source Voltage
100
30
TA = -55 C
IS, REVERSE DRAIN CURRENT (A)
o
VDS = 5V
o
25 C
25
ID, DRAIN CURRENT (A)
3
VGS, GATE TO SOURCE VOLTAGE (V)
o
125 C
20
15
10
5
VGS = 0V
10
TA = 125oC
1
25oC
0.1
o
-55 C
0.01
0.001
0.0001
0
0.5
1
1.5
2
2.5
VGS, GATE TO SOURCE VOLTAGE (V)
Figure 5. Transfer Characteristics
3
0
0.2
0.4
0.6
0.8
1
1.2
VSD, BODY DIODE FORWARD VOLTAGE (V)
Figure 6. Body Diode Forward Voltage Variation
with Source Current and Temperature
FDD6512A/FDU6512A Rev. B (W)
FDD6512A/FDU6512A
Typical Characteristics
1800
ID = 10.7A
VDS = 5V
10V
f = 1MHz
VGS = 0 V
1500
4
CAPACITANCE (pF)
VGS, GATE-SOURCE VOLTAGE (V)
5
15V
3
2
CISS
1200
900
600
COSS
1
300
CRSS
0
0
0
2
4
6
8
10
12
0
14
4
Figure 7. Gate Charge Characteristics
12
16
20
Figure 8. Capacitance Characteristics
1000
R DS(ON)LIMIT
P(pk), PEAK TRANSIENT POWER (W)
200
,
DR 100
AIN
CU
RR
EN
10
T
(A)
100 µs
1ms
10ms
100ms
1s
10s
1
DC
V GS = 10V
SINGLE PULSE
D
o
R θJA = 96 C/W
0.1
T A = 25 oC
0.01
SINGLE PULSE
Rθ J A = 9 6 ° C / W
150
TA = 25°C
100
50
0
0.1
1
10
100
0.001
0.01
0.1
V DS, DRAIN-SOURCE VOLTAGE (V)
1
10
100
t 1 , TIME (sec)
Figure 9. Maximum Safe Operating Area
Figure 10. Single Pulse Maximum
Power Dissipation
1
r(t), NORMALIZED EFFECTIVE
TRANSIENT THERMAL RESISTANCE
I
8
VDS, DRAIN TO SOURCE VOLTAGE (V)
Qg, GATE CHARGE (nC)
D = 0.5
0.2
0.1
R θJA (t) = r(t) * R θJA
R θJA = 96°C/W
0.1
0.05
0.01
0.01
0.02
P(pk)
Single Pulse
t1
0.001
t2
TJ - TA = P * R θJA (t)
Duty Cycle, D = t 1 / t 2
0.0001
0.0001
0.001
0.01
0.1
1
10
100
300
t1 , TIME (sec)
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.
FDD6512A/FDU6512A Rev. B (W)
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.
ACEx™
Bottomless™
CoolFET™
CROSSVOLT™
DenseTrench™
DOME™
EcoSPARK™
E2CMOSTM
EnSignaTM
FACT™
FACT Quiet Series™
FAST 
FASTr™
FRFET™
GlobalOptoisolator™
GTO™
HiSeC™
ISOPLANAR™
LittleFET™
MicroFET™
MicroPak™
MICROWIRE™
OPTOLOGIC™
OPTOPLANAR™
PACMAN™
POP™
Power247™
PowerTrench 
QFET™
QS™
QT Optoelectronics™
Quiet Series™
SILENT SWITCHER 
SMART START™
STAR*POWER™
Stealth™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
SyncFET™
TinyLogic™
TruTranslation™
UHC™
UltraFET 
VCX™
STAR*POWER is used under license
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.
LIFE SUPPORT POLICY
FAIRCHILD’S 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
2. A critical component is any component of a life
systems which, (a) are intended for surgical implant into
support device or system whose failure to perform can
the body, or (b) support or sustain life, or (c) whose
be reasonably expected to cause the failure of the life
failure to perform when properly used in accordance
support device or system, or to affect its safety or
with instructions for use provided in the labeling, can be
effectiveness.
reasonably expected to result in significant injury to the
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Formative or
In Design
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
Preliminary
First Production
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.
No Identification Needed
Full Production
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. H4