July 1996
NDT455N
N-Channel Enhancement Mode Field Effect Transistor
General Description
Features
These N-Channel logic level enhancement mode power field
effect transistors are produced using Fairchild's proprietary, high
cell density, DMOS technology. This very high density process
is especially tailored to minimize on-state resistance, provide
superior switching performance, and withstand high energy
pulses in the avalanche and commutation modes. These devices
are particularly suited for low voltage applications such as DC
motor control and DC/DC conversion where fast switching, low
in-line power loss, and resistance to transients are needed.
11.5 A, 30 V. RDS(ON) = 0.015 Ω @ VGS = 10 V
RDS(ON) = 0.02 Ω @ VGS = 4.5 V.
High density cell design for extremely low RDS(ON).
High power and current handling capability in a widely used
surface mount package.
________________________________________________________________________________
D
G
Absolute Maximum Ratings
Symbol
Parameter
VDSS
Drain-Source Voltage
VGSS
Gate-Source Voltage
ID
Drain Current
D
D
S
- Continuous
(Note 1a)
Maximum Power Dissipation
NDT455N
Units
30
V
20
V
± 11.5
A
± 40
(Note 1a)
3
(Note 1b)
1.3
(Note 1c)
TJ,TSTG
S
T A = 25°C unless otherwise noted
- Pulsed
PD
G
Operating and Storage Temperature Range
W
1.1
-65 to 150
°C
THERMAL CHARACTERISTICS
RθJA
Thermal Resistance, Junction-to-Ambient
(Note 1a)
42
°C/W
RθJC
Thermal Resistance, Junction-to-Case
(Note 1)
12
°C/W
© 1997 Fairchild Semiconductor Corporation
NDT455N Rev.F
Electrical Characteristics (TA = 25°C unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
OFF CHARACTERISTICS
BVDSS
Drain-Source Breakdown Voltage
VGS = 0 V, ID = 250 µA
IDSS
Zero Gate Voltage Drain Current
VDS = 24 V, VGS = 0 V
30
V
TJ = 55°C
1
µA
10
µA
IGSSF
Gate - Body Leakage, Forward
VGS = 20 V, VDS = 0 V
100
nA
IGSSR
Gate - Body Leakage, Reverse
VGS = -20 V, VDS= 0 V
-100
nA
3
V
ON CHARACTERISTICS (Note 2)
VGS(th)
Gate Threshold Voltage
VDS = VGS, ID = 250 µA
RDS(ON)
Static Drain-Source On-Resistance
VGS = 10 V, ID = 11.5 A
1
TJ = 125°C
0.7
TJ = 125°C
VGS = 4.5 V, ID = 10 A
ID(on)
gFS
On-State Drain Current
Forward Transconductance
VGS = 10 V , VDS = 5 V
30
VGS = 4.5 V, VDS = 5 V
15
VGS = 10 V, ID = 11.5 A
1.5
0.9
2.2
0.013
0.015
0.019
0.03
0.018
0.02
Ω
A
26
S
1220
pF
715
pF
280
pF
DYNAMIC CHARACTERISTICS
Ciss
Input Capacitance
Coss
Output Capacitance
Crss
Reverse Transfer Capacitance
VDS = 15, VGS = 0 V,
f = 1.0 MHz
SWITCHING CHARACTERISTICS (Note 2)
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
VDD = 15 V, ID = 1 A,
VGEN = 10 V, RGEN = 6 Ω
VDS = 10 V,
ID = 11.5 A, VGS = 10 V
11
20
ns
16
30
ns
48
80
ns
40
70
ns
43
61
nC
4
nC
11
nC
NDT455N Rev.F
Electrical Characteristics (TA = 25°C unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
2.5
A
1.2
V
140
ns
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 = 2.5 A (Note 2)
trr
Reverse Recovery Time
VGS = 0 V, IF = 2.5 A dIF/dt = 100 A/µs
Notes:
1.
PD (t) =
T J −T A
R θJA(t)
=
T J −T A
R θJC +R θCA (t)
= I 2D(t) × R DS(ON)@T J
0.845
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 defined by users. For general reference: Applications on 4.5"x5" FR-4 PCB under still air environment, typical
RθJA is found to be:
a. 42oC/W with 1 in2 of 2 oz copper mounting pad.
b. 95oC/W with 0.066 in2 of 2 oz copper mounting pad.
c. 110oC/W with 0.0123 in2 of 2 oz copper mounting pad.
1a
1b
1c
Scale 1 : 1 on letter size paper
2. Pulse Test: Pulse Width < 300µs, Duty Cycle < 2.0%.
NDT455N Rev.F
Typical Electrical Characteristics
2.5
VGS =10V
6.0
4.0
R DS(on) , NORMALIZED
5.0
3.5
24
16
3.0
8
I
DRAIN-SOURCE ON-RESISTANCE
32
4.5
D
, DRAIN-SOURCE CURRENT (A)
40
0
0
0.5
1
1.5
2
2.5
2
4.0
4.5
1.5
5.0
6.0
10
1
0.5
3
VGS = 3.5V
0
8
16
24
I D , DRAIN CURRENT (A)
VDS , DRAIN-SOURCE VOLTAGE (V)
1.5
1.25
R DS(on) , NORMALIZED
R DS(ON), NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
V GS = 10V
1
0.75
DRAIN-SOURCE ON-RESISTANCE
2.5
I D = 11.5A
VGS = 10V
2
TJ = 125°C
1.5
25°C
1
-55°C
0.5
0
-25
0
25
50
75
100
125
0
150
8
16
T , JUNCTION TEMPERATURE (°C)
VGS(th) , NORMALIZED
I D , DRAIN CURRENT (A)
25°C
125°C
20
10
V
GS
2.4
3.2
, GATE TO SOURCE VOLTAGE (V)
Figure 5. Transfer Characteristics.
4
GATE-SOURCE THRESHOLD VOLTAGE
T = -55°C
J
1.6
40
Figure 4. On-Resistance Variation with Drain
Current and Temperature.
40
30
32
D
Figure 3. On-Resistance Variation with
Temperature.
V DS = 10V
24
I , DRAIN CURRENT (A)
J
0
0.8
40
Figure 2. On-Resistance Variation with Gate
Voltage and Drain Current.
Figure 1. On-Region Characteristics.
0.5
-50
32
1.4
VDS = VGS
I D = 250µA
1.2
1
0.8
0.6
0.4
-50
-25
0
25
50
75
100
125
150
T , JUNCTION TEMPERATURE (°C)
J
Figure 6. Gate Threshold Variation with
Temperature.
NDT455N Rev.F
Typical Electrical Characteristics
40
1.06
1.04
1.02
1
0.98
0.96
-25
0
T
J
25
50
75
100
, JUNCTION TEMPERATURE (°C)
125
150
1
T J = 125°C
0.1
-55°C
0.001
0.0001
0
0.2
0.4
0.6
0.8
1
1.2
V SD , BODY DIODE FORWARD VOLTAGE (V)
V GS , GATE-SOURCE VOLTAGE (V)
10
2000
C iss
1000
800
C oss
500
300
f = 1 MHz
V GS = 0V
C rss
0.2
0.5
V
DS
1
2
5
10
20
30
VDS = 5.V
I D = 11.5A
10V
8
15V
6
4
2
0
0
10
, DRAIN TO SOURCE VOLTAGE (V)
Figure 9. Capacitance Characteristics.
20
30
40
Figure 10. Gate Charge Characteristics.
t d(on)
t d(off)
tf
90%
90%
V OUT
D
R GEN
t off
tr
RL
V IN
VOUT
10%
10%
INVERTED
DUT
G
50
Q g , GATE CHARGE (nC)
t on
V DD
VGS
1.4
Figure 8. Body Diode Forward Voltage Variation
with Current and Temperature.
4000
100
0.1
25°C
0.01
Figure 7. Breakdown Voltage Variation with
Temperature.
200
V GS = 0V
10
1.08
I S , REVERSE DRAIN CURRENT (A)
, NORMALIZED
DSS
I D = 250µA
0.94
-50
CAPACITANCE (pF)
BV
DRAIN-SOURCE BREAKDOWN VOLTAGE
1.1
90%
S
V IN
50%
50%
10%
PULSE WIDTH
Figure 11. Switching Test Circuit.
Figure 12. Switching Waveforms.
NDT455N Rev.F
3.5
40
TJ = -55°C
V DS =10V
STEADY-STATE POWER DISSIPATION (W)
g FS, TRANSCONDUCTANCE (SIEMENS)
Typical Thermal Characteristics
25°C
30
125°C
20
10
0
0
6
12
18
24
30
1a
3
2.5
2
1.5
1b
1c
1
4.5"x5" FR-4 Board
o
TA = 2 5 C
Still Air
0.5
0
0.2
0.4
0.6
0.8
2oz COPPER MOUNTING PAD AREA (in 2 )
I , DRAIN CURRENT (A)
D
Figure 13. Transconductance Variation with Drain
Current and Temperature.
Figure 14. SOT-223 Maximum Steady- State
Power Dissipation versus Copper
Mounting Pad Area.
60
14
30
12
I D , DRAIN CURRENT (A)
I D , STEADY-STATE DRAIN CURRENT (A)
1
1a
10
8
1b
1c
4.5"x5" FR-4 Board
o
TA = 25 C
Still Air
VGS = 10V
6
0.2
0.4
0.6
0.8
R
N)
LIM
IT
100
us
1m
s
5
1
10m
s
100
ms
1s
10s
DC
1
0.1
0.05
VGS = 10V
SINGLE PULSE
RθJA =See Note1c
TA = 25°C
0.01
0.1
4
0
10
(O
DS
0.5
2oz COPPER MOUNTING PAD AREA (in 2 )
1
2
5
10
30
50
VDS , DRAIN-SOURCE VOLTAGE (V)
Figure 15. Maximum Steady-State
DrainCurrent versus Copper Mounting
Pad Area.
Figure 16. Maximum Safe Operating Area.
r(t), NORMALIZED EFFECTIVE
TRANSIENT THERMAL RESISTANCE
1
0.5
D = 0.5
0.2
0.2
0.1
0.1
0.05
0.05
0.02
0.02
0.01
R JA (t) = r(t) * R JA
θ
θ
R JA = See Note 1 c
θ
P(pk)
0.01
t1
0.005
Single Pulse
0.002
0.001
0.0001
t2
TJ - TA = P * R
(t)
θJA
Duty Cycle, D = t 1 / t 2
0.001
0.01
0.1
1
10
100
300
t 1 , TIME (sec)
Figure 17. Typical Transient Thermal Impedance Curve.
Remark: Thermal characterization performed under the conditions of Note 1c. Should better thermal design employs, RθJA will be
lower and reach thermal equivalent sooner.
NDT455N Rev.F
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.
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E2CMOSTM
FACT™
FACT Quiet Series™
FAST®
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GTO™
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DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
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failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
effectiveness.
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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.