FAIRCHILD FDC3512

FDC3512
80V 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) and fast switching speed.
• 3.0 A, 80 V
RDS(ON) = 77 mΩ @ VGS = 10 V
RDS(ON) = 88 mΩ @ VGS = 6 V
• High performance trench technology for extremely
low RDS(ON)
Applications
• Low gate charge (13nC typ)
• DC/DC converter
• High power and current handling capability
• Fast switching speed
D
D
S
SuperSOT TM-6
D
D
6
2
5
3
4
G
Absolute Maximum Ratings
Symbol
1
TA=25oC unless otherwise noted
Ratings
Units
VDSS
Drain-Source Voltage
Parameter
80
V
VGSS
Gate-Source Voltage
± 20
V
ID
Drain Current
3.0
A
– Continuous
(Note 1a)
– Pulsed
PD
20
Maximum Power Dissipation
(Note 1a)
(Note 1b)
TJ, TSTG
1.6
W
0.8
–55 to +150
°C
(Note 1a)
78
°C/W
(Note 1)
30
°C/W
Operating and Storage Junction Temperature Range
Thermal Characteristics
RθJA
Thermal Resistance, Junction-to-Ambient
RθJC
Thermal Resistance, Junction-to-Case
Package Marking and Ordering Information
Device Marking
Device
Reel Size
Tape width
Quantity
.352
FDC3512
7’’
8mm
3000 units
2002 Fairchild Semiconductor Corporation
FDC3512 Rev B2 (W)
FDC3512
February 2002
Symbol
TA = 25°C unless otherwise noted
Parameter
Test Conditions
Min
Typ
Max Units
Drain-Source Avalanche Ratings (Note 2)
W DSS
Drain-Source Avalanche Energy
IAR
Drain-Source Avalanche Current
Single Pulse, VDD = 40 V, ID=3.0 A
90
mJ
3.0
A
Off Characteristics
VGS = 0 V, ID = 250 µA
BVDSS
∆BVDSS
∆TJ
IDSS
Drain–Source Breakdown Voltage
Breakdown Voltage Temperature
Coefficient
Zero Gate Voltage Drain Current
VDS = 64 V, VGS = 0 V
IGSSF
Gate–Body Leakage, Forward
IGSSR
Gate–Body Leakage, Reverse
On Characteristics
80
ID = 250 µA, Referenced to 25°C
V
80
mV/°C
1
µA
VGS = 20 V, VDS = 0 V
100
nA
VGS = –20 V, VDS = 0 V
–100
nA
4
V
(Note 2)
VDS = VGS, ID = 250 µA
ID = 250 µA, Referenced to 25°C
2
2.4
VGS(th)
∆VGS(th)
∆TJ
Gate Threshold Voltage
Gate Threshold Voltage
Temperature Coefficient
RDS(on)
Static Drain–Source
On Resistance
ID(on)
On–State Drain Current
VGS = 10 V,
VGS = 6.0 V,
VGS = 10 V,
VGS = 10 V,
gFS
Forward Transconductance
VDS = 10 V, ID = 3.0 A
14
VDS = 40 V,
f = 1.0 MHz
634
pF
58
pF
28
pF
ID = 3.0 A
ID = 2.8 A
ID = 3.0 A;TJ = 125°C
VDS = 5 V
–6
56
61
97
mV/°C
77
88
141
10
mΩ
A
S
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
V GS = 0 V,
(Note 2)
VDD = 40 V,
VGS = 10 V,
ID = 1 A,
RGEN = 6 Ω
7
14
ns
3
6
ns
ns
td(off)
Turn–Off Delay Time
24
28
tf
Turn–Off Fall Time
4
8
ns
Qg
Total Gate Charge
13
18
nC
Qgs
Gate–Source Charge
Qgd
Gate–Drain Charge
VDS = 40 V,
VGS = 10 V
ID = 3.0 A,
2.4
nC
2.8
nC
Drain–Source Diode Characteristics and Maximum Ratings
IS
VSD
trr
Qrr
Maximum Continuous Drain–Source Diode Forward Current
Drain–Source Diode Forward
VGS = 0 V, IS = 1.3 A
Voltage
IF = 3.0 A,
Diode Reverse Recovery Time
diF/dt = 300 A/µs
Diode Reverse Recovery Charge
(Note 2)
0.8
(Note 2)
28.2
48
1.3
A
1.2
V
nS
nC
Notes:
1. RθJA is the sum of the junction-to-case and case-to-ambient 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.
2
78°C/W when mounted on a 1in pad of 2oz copper on FR-4 board.
b.
156°C/W when mounted on a minimum pad.
2. Pulse Test: Pulse Width ≤ 300 µs, Duty Cycle ≤ 2.0%
FDC3512 Rev B2(W)
FDC3512
Electrical Characteristics
FDC3512
Typical Characteristics
1.8
VGS = 10V
5.0V
4.5V
6.0V
ID, DRAIN CURRENT (A)
RDS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
20
15
4.0V
10
5
1.6
VGS = 4.0V
1.4
4.5V
5.0V
1.2
6.0V
0.8
0
0
1
2
3
4
0
5
5
Figure 1. On-Region Characteristics.
15
20
Figure 2. On-Resistance Variation with
Drain Current and Gate Voltage.
0.18
2.5
ID = 3.0A
VGS =10V
2.2
RDS(ON), ON-RESISTANCE (OHM)
RDS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
10
ID, DRAIN CURRENT (A)
VDS, DRAIN-SOURCE VOLTAGE (V)
1.9
1.6
1.3
1
0.7
0.4
-50
-25
0
25
50
75
100
125
150
ID = 1.5 A
0.14
TA = 125oC
0.1
TA = 25oC
0.06
0.02
175
2
o
4
TJ, JUNCTION TEMPERATURE ( C)
6
8
10
VGS, GATE TO SOURCE VOLTAGE (V)
Figure 3. On-Resistance Variation with
Temperature.
Figure 4. On-Resistance Variation with
Gate-to-Source Voltage.
100
20
IS, REVERSE DRAIN CURRENT (A)
VDS = 5V
ID, DRAIN CURRENT (A)
10V
1
15
10
o
TA = 125 C
5
25oC
-55oC
VGS = 0V
10
TA = 125oC
1
25oC
0.1
-55oC
0.01
0.001
0.0001
0
2
3
4
VGS, GATE TO SOURCE VOLTAGE (V)
Figure 5. Transfer Characteristics.
5
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.
FDC3512 Rev B2(W)
FDC3512
Typical Characteristics
1000
ID = 3.0A
VDS = 20V
f = 1MHz
VGS = 0 V
40V
8
800
CAPACITANCE (pF)
VGS, GATE-SOURCE VOLTAGE (V)
10
60V
6
4
2
CISS
600
400
200
COSS
CRSS
0
0
0
3
6
9
12
15
0
20
Qg, GATE CHARGE (nC)
Figure 7. Gate Charge Characteristics.
80
50
RDS(ON) LIMIT
P(pk), PEAK TRANSIENT POWER (W)
ID, DRAIN CURRENT (A)
60
Figure 8. Capacitance Characteristics.
100
100µs
10
1ms
10ms
100ms
1s
1
10s
DC
VGS = 10V
SINGLE PULSE
o
RθJA = 156 C/W
0.1
o
TA = 25 C
0.01
0.1
1
10
SINGLE PULSE
RθJA = 156°C/W
TA = 25°C
40
30
20
10
0
0.001
100
0.01
VDS, DRAIN-SOURCE VOLTAGE (V)
0.1
1
10
100
1000
t1, TIME (sec)
Figure 9. Maximum Safe Operating Area.
r(t), NORMALIZED EFFECTIVE
TRANSIENT THERMAL RESISTANCE
40
-VDS, DRAIN TO SOURCE VOLTAGE (V)
Figure 10. Single Pulse Maximum
Power Dissipation.
1
D = 0.5
RθJA(t) = r(t) + RθJA
RθJA = 156°C/W
0.2
0.1
0.1
0.05
P(pk)
0.02
0.01
0.01
0.001
0.0001
t1
t2
TJ - TA = P * RθJA(t)
Duty Cycle, D = t1 / t2
SINGLE PULSE
0.001
0.01
0.1
1
10
100
1000
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.
FDC3512 Rev B2(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
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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