FAIRCHILD FDS6912A

June 1998
FDS6912A
Dual N-Channel, Logic Level, PowerTrenchTM MOSFET
General Description
Features
These N-Channel Logic Level MOSFETs are
produced using Fairchild Semiconductor's
advanced PowerTrench process that has been
especially tailored to minimize the on-state
resistance and yet maintain superior switching
performance.
These devices are well suited for low voltage and
battery powered applications where low in-line
power loss and fast switching are required.
SuperSOTTM-6
SOT-23
SuperSOTTM-8
6 A, 30 V. RDS(ON) = 0.028 Ω @ VGS = 10 V
RDS(ON) = 0.035 Ω @ VGS = 4.5 V.
Fast switching speed.
Low gate charge (typical 9 nC).
High performance trench technology for extremely low
RDS(ON).
High power and current handling capability.
SO-8
SOIC-16
SOT-223
D2
D1
D2
D1
SO-8
S
FD 2A
1
69
pin 1
Absolute Maximum Ratings
Symbol
Parameter
VDSS
VGSS
ID
Drain Current - Continuous
S1
G1
S2
G2
TJ,TSTG
4
6
3
7
2
8
1
TA = 25oC unless other wise noted
FDS6912A
Units
Drain-Source Voltage
30
V
Gate-Source Voltage
±20
V
6
A
(Note 1a)
- Pulsed
PD
5
Power Dissipation for Single Operation
20
(Note 1a)
2
(Note 1b)
1.6
(Note 1c)
0.9
Operating and Storage Temperature Range
W
-55 to 150
°C
THERMAL CHARACTERISTICS
RθJA
Thermal Resistance, Junction-to-Ambient
(Note 1a)
78
°C/W
RθJC
Thermal Resistance, Junction-to-Case
(Note 1)
40
°C/W
© 1998 Fairchild Semiconductor Corporation
FDS6912A Rev.C
Electrical Characteristics (TA = 25 OC unless otherwise noted )
Symbol
Parameter
Conditions
Min
Typ
Max
Units
OFF CHARACTERISTICS
BVDSS
Drain-Source Breakdown Voltage
VGS = 0 V, I D = 250 µA
30
∆BVDSS/∆TJ
Breakdown Voltage Temp. Coefficient
ID = 250 µA, Referenced to 25 C
IDSS
Zero Gate Voltage Drain Current
VDS = 24 V, VGS = 0 V
o
V
mV /oC
23
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
VGS(th)
(Note 2)
Gate Threshold Voltage
VDS = VGS, ID = 250 µA
1
∆VGS(th)/∆TJ
Gate Threshold Voltage Temp. Coefficient
ID = 250 µA, Referenced to 25 C
RDS(ON)
Static Drain-Source On-Resistance
VGS = 10 V, I D = 6 A
o
1.5
mV /oC
-4
TJ =125°C
VGS = 4.5 V, I D = 5 A
0.023
0.028
0.036
0.044
0.029
0.035
20
Ω
ID(ON)
On-State Drain Current
VGS = 10 V, VDS = 5 V
gFS
Forward Transconductance
VDS = 15 V, I D= 6 A
18
A
S
VDS = 15 V, VGS = 0 V,
f = 1.0 MHz
830
pF
185
pF
80
pF
DYNAMIC CHARACTERISTICS
Ciss
Input Capacitance
Coss
Output Capacitance
Crss
Reverse Transfer Capacitance
SWITCHING CHARACTERISTICS
(Note 2)
tD(on)
Turn - On Delay Time
VDS= 15 V, I D = 1 A
6
12
ns
tr
Turn - On Rise Time
VGS = 10 V , RGEN = 6 Ω
10
18
ns
tD(off)
Turn - Off Delay Time
18
29
ns
5
12
ns
9
13
nC
tf
Turn - Off Fall Time
Qg
Total Gate Charge
VDS = 15 V, I D = 7.5 A,
Qgs
Gate-Source Charge
VGS = 5 V
Qgd
Gate-Drain Charge
2.8
nC
3.1
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 = 1.3 A
(Note 2)
0.73
1.3
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. 78OC/W on a 0.5 in2
pad of 2oz copper.
b. 125OC/W on a 0.02 in2
pad of 2oz copper.
c. 135OC/W on a 0.003 in2
pad of 2oz copper.
Scale 1 : 1 on letter size paper
2. Pulse Test: Pulse Width < 300µs, Duty Cycle < 2.0%.
FDS6912A Rev.C
Typical Electrical Characteristics
32
5
5.5V
4.5V
4.0V
RDS(ON) , NORMALIZED
VGS =10V
3.5V
24
16
3.0V
8
2.5V
0
0
1
2
3
DRAIN-SOURCE ON-RESISTANCE
I D , DRAIN-SOURCE CURRENT (A)
40
3
3.0 V
2
3.5 V
4.5 V
10V
1
0
4
V GS = 2.5V
4
0
6
VDS , DRAIN-SOURCE VOLTAGE (V)
R DS(ON) , ON-RESISTANCE (OHM)
RDS(ON) , NORMALIZED
DRAIN-SOURCE ON-RESISTANCE
24
30
0.15
1.6
I D = 6A
VGS = 10V
1.4
1.2
1
0.8
0.6
-50
ID = 3A
0.12
0.09
0.06
TA = 125°C
0.03
25°C
0
-25
0
25
50
75
100
125
150
0
2
Figure 3. On-Resistance Variation
Temperature.
4
6
8
10
V GS , GATE TO SOURCE VOLTAGE (V)
TJ , JUNCTION TEMPERATURE (°C)
with
Figure 4. On-Resistance Variation with
Gate-to-Source Voltage.
20
25
I S , REVERSE DRAIN CURRENT (A)
TJ = -55°C
V DS =5.0V
25°C
I D , DRAIN CURRENT (A)
18
Figure 2. On-Resistance Variation with
Drain Current and Gate Voltage.
Figure 1. On-Region Characteristics.
20
125°C
15
10
5
0
12
I D , DRAIN CURRENT (A)
VGS = 0V
TJ = 125°C
1
25°C
0.1
-55°C
0.01
0.001
1
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
V SD, BODY DIODE FORWARD VOLTAGE (V)
1.4
Figure 6. Body Diode Forward Voltage
Variation with Source Current
and Temperature.
FDS6912A Rev.C
Typical Electrical Characteristics
1500
V DS = 5V
I D = 6A
C iss
10V
8
15V
CAPACITANCE (pF)
VGS , GATE-SOURCE VOLTAGE (V)
10
6
4
500
200
Coss
100
50
0
0.1
0
3
6
9
12
15
C rss
f = 1 MHz
V GS = 0 V
2
0.2
18
0.5
1
2
5
10
30
VDS , DRAIN TO SOURCE VOLTAGE (V)
Q g , GATE CHARGE (nC)
Figure 8. Capacitance Characteristics.
Figure 7. Gate Charge Characteristics.
30
10
R
(O
DS
N)
LIM
IT
100
1m
10m
2
10
0.5
1s
0.01
0.1
0.5
s
s
s
10s
DC
VGS =10V
SINGLE PULSE
RθJA = 135°C/W
A
TA = 25°C
0.05
0m
SINGLE PULSE
R θJA =135 °C/W
TA = 25°C
25
us
POWER (W)
I D , DRAIN CURRENT (A)
100
50
20
15
10
5
1
2
5
10
30
0
0.01
50
0.1
Figure 9. Maximum Safe Operating Area.
r(t), NORMALIZED EFFECTIVE
TRANSIENT THERMAL RESISTANCE
0.5
10
50 100
300
SINGLE PULSE TIME (SEC)
VDS , DRAIN-SOURCE VOLTAGE (V)
Figure 10. Single Pulse Maximum Power
Dissipation.
1
0.5
0.2
0.1
0.05
0.02
D = 0.5
R θJA (t) = r(t) * R θJA
R θJA =135° C/W
0.2
0.1
0.05
P(pk)
0.02
0.01
0.01
t1
Single Pulse
0.002
0.001
0.0001
t2
TJ - TA = P * R JA (t)
θ
Duty Cycle, D = t1 /t2
0.005
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 1c.
Transient thermal response will change depending on the circuit board design.
FDS6912A Rev.C