FAIRCHILD FDC6420

FDC6420C
20V N & P-Channel PowerTrench MOSFETs
General Description
Features
These N & P-Channel MOSFETs are produced using
Fairchild Semiconductor’s advanced PowerTrench
process that has been especially tailored to minimize
on-state resistance and yet maintain superior
switching performance.
• Q1 3.0 A, 20V.
RDS(ON) = 95 mΩ @ VGS = 2.5 V
• Q2 –2.2 A, 20V. RDS(ON) = 125 mΩ @ VGS = –4.5 V
RDS(ON) = 190 mΩ @ VGS = –2.5 V
These devices have been designed to offer
exceptional power dissipation in a very small footprint
for applications where the bigger more expensive
SO-8 and TSSOP-8 packages are impractical.
• Low gate charge
• High performance trench technology for extremely
low RDS(ON).
Applications
•
•
•
RDS(ON) = 70 mΩ @ VGS = 4.5 V
• SuperSOT –6 package: small footprint (72% smaller than
DC/DC converter
Load switch
LCD display inverter
SO-8); low profile (1mm thick).
D2
Q2(P)
S1
D1
G2
SuperSOT
TM
-6
Pin 1
4
3
5
2
S2
G1
1
6
Q1(N)
SuperSOT™-6
Absolute Maximum Ratings
Symbol
o
TA=25 C unless otherwise noted
Q1
Q2
Units
VDSS
Drain-Source Voltage
Parameter
20
–20
V
VGSS
Gate-Source Voltage
±12
±12
V
ID
Drain Current
3.0
–2.2
A
12
–6
– Continuous
(Note 1a)
– Pulsed
Power Dissipation for Single Operation
PD
TJ, TSTG
(Note 1a)
0.96
(Note 1b)
0.9
(Note 1c)
0.7
W
–55 to +150
°C
(Note 1a)
130
°C/W
(Note 1)
60
°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
.420
FDC6420C
7’’
8mm
3000 units
2001 Fairchild Semiconductor Corporation
FDC6420C Rev C(W)
FDC6420C
September 2001
Symbol
TA = 25°C unless otherwise noted
Parameter
Test Conditions
Min
Typ
Max Units
Off Characteristics
BVDSS
Drain–Source Breakdown Voltage
∆BVDSS
∆TJ
Breakdown Voltage Temperature
Coefficient
IDSS
Zero Gate Voltage Drain Current
IGSSF
Gate–Body Leakage, Forward
IGSSR
Gate–Body Leakage, Reverse
On Characteristics
VGS(th)
∆VGS(th)
∆TJ
RDS(on)
ID(on)
gFS
VGS = 0 V,
ID = 250 µA
VGS = 0 V,
ID = –250 µA
ID = 250 µA, Ref. to 25°C
ID = –250 µA, Ref. to 25°C
VDS = 16 V, VGS = 0 V
VDS = –16 V, VGS = 0 V
VGS = 12 V, VDS = 0 V
VGS = 12 V, VDS = 0 V
VGS = –12 V, VDS = 0 V
VGS = –12 V, VDS = 0 V
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
Q1
Q2
20
–20
V
13
–11
mV/°C
1
–1
100
100
–100
–100
µA
V
nA
nA
(Note 2)
Q1
VDS = VGS, ID = 250 µA
0.5
0.9
1.5
Q2
VDS = VGS, ID = –250 µA
–0.6
–1.0
–1.5
Gate Threshold Voltage
Temperature Coefficient
Q1
ID = 250 µA, Ref. To 25°C
–3
Q2
ID = –250 µA, Ref. to 25°C
–3
Static Drain–Source
On–Resistance
Q1
VGS = 4.5 V, ID = 3.0 A
VGS = 2.5 V, ID = 2.5 A
VGS = 4.5 V, ID = 3.0 A,TJ=125°C
Q2
VGS = –4.5 V, ID = –2.2 A
VGS =– 2.5 V, ID = –1.8 A
VGS= – 4.5 V,ID=–2.2 A,TJ=125°C
Q1
VGS = 4.5 V,
Gate Threshold Voltage
On–State Drain Current
Forward Transconductance
VDS = 5 V
50
66
71
100
145
137
mV/°C
70
95
106
mΩ
125
190
184
12
A
Q2
VGS = –4.5 V, VDS = –5 V
Q1
VDS = 5 V
ID = 2.5 A
10
Q2
VDS = –5 V
ID = –2.0A
6
Q1
VDS=10 V, V GS= 0 V, f=1.0MHz
Q2
VDS=–10 V, V GS= 0 V, f=1.0MHz
337
Q1
VDS=10 V, V GS= 0 V, f=1.0MHz
82
Q2
VDS=–10 V, V GS= 0 V, f=1.0MHz
88
VDS=10 V, V GS= 0 V, f=1.0MHz
42
Q2
VDS=–10 V, V GS= 0 V, f=1.0MHz
51
Q1
Q2
For Q1:
VDS =10 V,
VGS= 4.5 V,
–6
S
Dynamic Characteristics
Ciss
Coss
Crss
Input Capacitance
Output Capacitance
Reverse Transfer Capacitance Q1
Switching Characteristics
td(on)
tr
Turn–On Delay Time
Turn–On Rise Time
tf
Qg
Qgs
Turn–Off Delay Time
Turn–Off Fall Time
Q1
Q1
Q2
pF
5
10
I DS= 1 A
RGEN = 6 Ω
9
18
7
14
ns
For Q2:
VDS =–10 V, I DS= –1 A
VGS= –4.5 V, RGEN = 6 Ω
12
13
22
23
ns
10
20
1.6
3
Q2
5
10
3.3
3.7
4.6
Total Gate Charge
Q1
Gate–Source Charge
Q2
Q1
Gate–Drain Charge
pF
Q1
Q2
Qgd
pF
(Note 2)
Q2
td(off)
324
Q1
Q2
For Q1:
VDS =10 V,
I DS= 3.0 A
VGS= 4.5 V,
For Q2:
VDS =–10 V, I DS= –2.2 A
VGS= –4.5 V,
0.95
ns
ns
nC
nC
0.68
0.7
nC
1.3
FDC6420C Rev C(W)
FDC6420C
Electrical Characteristics
Symbol
TA = 25°C unless otherwise noted
Parameter
Test Conditions
Min
Typ
Max Units
Drain–Source Diode Characteristics and Maximum Ratings
IS
VSD
Maximum Continuous Drain–Source Diode Forward Current
Drain–Source Diode Forward
Voltage
Q1
0.8
Q2
–0.8
Q1
VGS = 0 V, IS = 0.8 A
(Note 2)
0.7
1.2
Q2
VGS = 0 V, IS = 0.8 A
(Note 2)
–0.8
–1.2
A
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) 130 °C/W when
mounted on a 0.125
2
in pad of 2 oz.
copper.
b) 140 °C/W when
2
mounted on a .004 in
pad of 2 oz copper
c) 180 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%
FDC6420C Rev C(W)
FDC6420C
Electrical Characteristics
FDC6420C
Typical Characteristics: N-Channel
2
12
3.0V
2.5V
R DS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
ID, DRAIN CURRENT (A)
VGS = 4.5V
10
3.5V
8
2.0V
6
4
2
0
0
1
2
VGS = 2.0V
1.8
1.6
1.4
2.5V
1.2
3.0V
4.5V
0.8
3
0
2
4
VDS, DRAIN TO SOURCE VOLTAGE (V)
8
10
12
Figure 2. On-Resistance Variation with
Drain Current and Gate Voltage.
1.6
0.22
ID = 3.0A
VGS = 4.5V
RDS(ON), ON-RESISTANCE (OHM)
RDS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
6
ID, DRAIN CURRENT (A)
Figure 1. On-Region Characteristics.
1.4
1.2
1
0.8
0.6
ID = 1.5A
0.18
0.14
o
TA = 125 C
0.1
0.06
o
TA = 25 C
0.02
-50
-25
0
25
50
75
100
125
150
1
2
o
3
4
5
VGS, GATE TO SOURCE VOLTAGE (V)
TJ, JUNCTION TEMPERATURE ( C)
Figure 3. On-Resistance Variation with
Temperature.
Figure 4. On-Resistance Variation with
Gate-to-Source Voltage.
10
100
TA = -55oC
o
25 C
IS, REVERSE DRAIN CURRENT (A)
VDS = 5V
ID, DRAIN CURRENT (A)
3.5V
1
8
125oC
6
4
2
0
VGS = 0V
10
TA = 125oC
1
o
25 C
0.1
-55oC
0.01
0.001
0.0001
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.
FDC6420C Rev C(W)
FDC6420C
Typical Characteristics
450
ID = 3A
VDS = 5V
f = 1 MHz
VGS = 0 V
10V
4
360
15V
CAPACITANCE (pF)
VGS , GATE-SOURCE VOLTAGE (V)
5
3
2
CISS
270
180
COSS
1
90
0
0
CRSS
0
1
2
3
4
0
Qg, GATE CHARGE (nC)
Figure 7. Gate Charge Characteristics.
10
15
20
Figure 8. Capacitance Characteristics.
5
RDS(ON) LIMIT
10
P(pk), PEAK TRANSIENT POWER (W)
100
ID, DRAIN CURRENT (A)
5
VDS, DRAIN TO SOURCE VOLTAGE (V)
1ms
10ms
100ms
1s
1
10s
DC
VGS = 4.5V
SINGLE PULSE
RθJA = 180oC/W
0.1
TA = 25oC
SINGLE PULSE
RθJA = 180°C/W
TA = 25°C
4
3
2
1
0
0.01
0.1
1
10
VDS, DRAIN-SOURCE VOLTAGE (V)
Figure 9. Maximum Safe Operating Area.
100
0.1
1
10
100
1000
t1, TIME (sec)
Figure 10. Single Pulse Maximum
Power Dissipation.
FDC6420C Rev C(W)
FDC6420C
Typical Characteristics: P-Channel
2.75
-ID, DRAIN CURRENT (A)
VGS =- 4.5V
RDS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
6
-3.0V
5
-2.5V
-3.5V
4
3
-2.0V
2
-1.8V
1
2.5
VGS = -2.0V
2.25
2
1.75
-2.5V
1.5
-3.0V
1.25
-3.5V
-4.5V
1
0.75
0
0
0.5
1
1.5
2
0
2.5
1
2
Figure 11. On-Region Characteristics.
4
5
6
Figure 12. On-Resistance Variation with
Drain Current and Gate Voltage.
0.4
1.6
ID = -1.1 A
ID = -2.2A
VGS = -4.5V
RDS(ON), ON-RESISTANCE (OHM)
RDS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
3
-ID, DRAIN CURRENT (A)
-VDS, DRAIN-SOURCE VOLTAGE (V)
1.4
1.2
1
0.8
0.35
0.3
0.25
0.2
o
TA = 125 C
0.15
0.1
o
TA = 25 C
0.6
-50
-25
0
25
50
75
100
125
0.05
150
1
2
3
4
5
o
TJ, JUNCTION TEMPERATURE ( C)
-VGS, GATE TO SOURCE VOLTAGE (V)
Figure 13. On-Resistance Variation with
Temperature.
Figure 14. On-Resistance Variation with
Gate-to-Source Voltage.
10
-ID, DRAIN CURRENT (A)
VDS = -5V
o
o
TA = -55 C
4
-IS, REVERSE DRAIN CURRENT (A)
5
25 C
125oC
3
2
1
VGS = 0V
1
TA = 125oC
0.1
o
25 C
0.01
o
-55 C
0.001
0.0001
0
0.5
1
1.5
2
2.5
-VGS, GATE TO SOURCE VOLTAGE (V)
Figure 15. Transfer Characteristics.
3
0
0.2
0.4
0.6
0.8
1
1.2
-VSD, BODY DIODE FORWARD VOLTAGE (V)
Figure 16. Body Diode Forward Voltage Variation
with Source Current and Temperature.
FDC6420C Rev C(W)
FDC6420C
Typical Characteristics
5
-VGS, GATE-SOURCE VOLTAGE (V)
600
VDS =- 5V
ID = -2.2A
f = 1MHz
VGS = 0 V
-10V
500
4
CAPACITANCE (pF)
-15V
3
2
1
400
CISS
300
200
COSS
100
CRSS
0
0
0
1
2
3
4
5
0
5
Qg, GATE CHARGE (nC)
Figure 17. Gate Charge Characteristics.
20
P(pk), PEAK TRANSIENT POWER (W)
5
RDS(ON) LIMIT
10ms
100ms
-ID, DRAIN CURRENT (A)
15
Figure 18. Capacitance Characteristics.
10
1s
1
10s
DC
0.1
VGS = -4.5V
SINGLE PULSE
o
RθJA = 180 C/W
o
TA = 25 C
0.01
SINGLE PULSE
RθJA = 180°C/W
TA = 25°C
4
3
2
1
0
0.1
1
10
100
0.1
1
-VDS, DRAIN-SOURCE VOLTAGE (V)
10
100
1000
t1, TIME (sec)
Figure 19. Maximum Safe Operating Area.
r(t), NORMALIZED EFFECTIVE TRANSIENT
THERMAL RESISTANCE
10
-VDS, DRAIN TO SOURCE VOLTAGE (V)
Figure 20. Single Pulse Maximum
Power Dissipation.
1
D = 0.5
RθJA(t) = r(t) * RθJA
RθJA = 180°C/W
0.2
0.1
0.1
0.05
P(pk)
0.02
0.01
t1
t2
TJ - TA = P * RθJA(t)
Duty Cycle, D = t1 / t2
0.01
SINGLE PULSE
0.001
0.0001
0.001
0.01
0.1
1
10
100
1000
t1, TIME (sec)
Figure 21. Transient Thermal Response Curve.
Thermal characterization performed using the conditions described in Note 1c.
Transient thermal response will change depending on the circuit board design.
FDC6420C Rev C(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