January 2001
Si4920DY Dual N-Channel, Logic Level, PowerTrench® MOSFET
General Description Features
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.
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.
SOT-23
SuperSOTTM-6
SuperSOTTM-8
SO-8
SOT-223
SOIC-16
D2 D2 D1 D1
5 4 3 2 1
49
20
S2 G2
6 7 8
SO-8
pin 1
S1
G1
Absolute Maximum Ratings
Symbol VDSS VGSS ID PD Parameter Drain-Source Voltage Gate-Source Voltage Drain Current - Continuous - Pulsed
TA = 25oC unless other wise noted Si4920DY 30 ±20
(Note 1a)
Units V V A
6 20
Power Dissipation for Single Operation
(Note 1a) (Note 1b) (Note 1c)
2 1.6 0.9 -55 to 150
W
TJ,TSTG RθJA RθJC
Operating and Storage Temperature Range
°C
THERMAL CHARACTERISTICS Thermal Resistance, Junction-to-Ambient Thermal Resistance, Junction-to-Case
(Note 1a) (Note 1)
78 40
°C/W °C/W
© 2001 Fairchild Semiconductor International
Si4920DY Rev.A
Electrical Characteristics (TA = 25 OC unless otherwise noted )
Symbol Parameter Conditions Min Typ Max Units OFF CHARACTERISTICS BVDSS Drain-Source Breakdown Voltage Breakdown Voltage Temp. Coefficient Zero Gate Voltage Drain Current VGS = 0 V, I D = 250 µA ID = 250 µA, Referenced to 25 C VDS = 24 V, VGS = 0 V TJ = 55°C IGSSF IGSSR VGS(th) Gate - Body Leakage, Forward Gate - Body Leakage, Reverse
(Note 2)
o
30 23 1 10 100 -100
V mV /oC µA µA nA nA
∆BVDSS/∆TJ
IDSS
VGS = 20 V, VDS = 0 V VGS = -20 V, VDS = 0 V VDS = VGS, ID = 250 µA ID = 250 µA, Referenced to 25 C VGS = 10 V, I D = 6 A TJ =125°C VGS = 4.5 V, I D = 5 A
o
ON CHARACTERISTICS
Gate Threshold Voltage Gate Threshold Voltage Temp. Coefficient Static Drain-Source On-Resistance
1
1.5 -4 0.023 0.036 0.029
3
V mV /oC
∆VGS(th)/∆TJ
RDS(ON)
0.028 0.044 0.035
Ω
ID(ON) gFS Ciss Coss Crss tD(on) tr tD(off) tf Qg Qgs Qgd IS VSD
Notes:
On-State Drain Current Forward Transconductance Input Capacitance Output Capacitance Reverse Transfer Capacitance
(Note 2)
VGS = 10 V, VDS = 5 V VDS = 15 V, I D= 6 A VDS = 15 V, VGS = 0 V, f = 1.0 MHz
20 18 830 185 80
A S pF pF pF 12 18 29 12 13 ns ns ns ns nC nC nC 1.3 A V
DYNAMIC CHARACTERISTICS
SWITCHING CHARACTERISTICS Turn - On Delay Time Turn - On Rise Time Turn - Off Delay Time Turn - Off Fall Time Total Gate Charge Gate-Source Charge Gate-Drain Charge
VDS= 15 V, I D = 1 A VGS = 10 V , RGEN = 6 Ω
6 10 18 5
VDS = 15 V, I D = 7.5 A, VGS = 5 V
9 2.8 3.1
DRAIN-SOURCE DIODE CHARACTERISTICS AND MAXIMUM RATINGS Maximum Continuous Drain-Source Diode Forward Current Drain-Source Diode Forward Voltage VGS = 0 V, IS = 1.3 A
(Note 2)
0.73
1.2
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%.
Si4920DY Rev.A
Typical Electrical Characteristics
40 I D , DRAIN-SOURCE CURRENT (A) 5
24
3.5V
RDS(ON) , NORMALIZED
32
5.5V 4.5V 4.0V
DRAIN-SOURCE ON-RESISTANCE
VGS =10V
4
V GS = 2.5V
3
3.0 V
2
16
3.0V
8
3.5 V 4.5 V 10V
1
2.5V
0 0 1 2 3 4
0
0
6
12
18
24
30
VDS , DRAIN-SOURCE VOLTAGE (V)
I D , DRAIN CURRENT (A)
Figure 1. On-Region Characteristics.
Figure 2. On-Resistance Variation with Drain Current and Gate Voltage.
1.6 DRAIN-SOURCE ON-RESISTANCE
0.15
1.4
I D = 6A VGS = 10V
R DS(ON) , ON-RESISTANCE (OHM)
ID = 3A
0.12
RDS(ON) , NORMALIZED
1.2
0.09
1
0.06
TA = 125°C
0.03
0.8
25°C
0 0 2 4 6 8 10
0.6 -50
-25
0
25
50
75
100
125
150
T , JUNCTION TEMPERATURE (°C) J
V GS , GATE TO SOURCE VOLTAGE (V)
Figure 3. On-Resistance Variation Temperature.
with
Figure 4. On-Resistance Variation with Gate-to-Source Voltage.
25
20
V DS =5.0V
I D , DRAIN CURRENT (A) 20
I S , REVERSE DRAIN CURRENT (A)
TJ = -55°C 25°C 125°C
VGS = 0V TJ = 125°C 25°C
0.1
1
15
10
-55°C
0.01
5
0
0.001 1 2 3 4 5 0 VGS , GATE TO SOURCE VOLTAGE (V) 0.2 0.4 0.6 0.8 1 1.2 V SD, BODY DIODE FORWARD VOLTAGE (V) 1.4
Figure 5. Transfer Characteristics.
Figure 6. Body Diode Forward Voltage Variation with Source Current and Temperature.
Si4920DYA Rev.A
Typical Electrical Characteristics
10 VGS , GATE-SOURCE VOLTAGE (V)
1500
I D = 6A
8
V DS = 5V 10V
CAPACITANCE (pF)
C iss
500
15V
6
200 100 50
Coss
4
2
f = 1 MHz V GS = 0 V
0.2 0.5 1 2 5
C rss
0
0.1
10
30
0
3
6
9
12
15
18
VDS , DRAIN TO SOURCE VOLTAGE (V)
Q g , GATE CHARGE (nC)
Figure 7. Gate Charge Characteristics.
Figure 8. Capacitance Characteristics.
100 50 I D , DRAIN CURRENT (A) 10 2 0.5
(O DS N) LIM
30
IT
100
1m 10m s
us
POWER (W)
25 20 15 10 5 0 0.01
R
SINGLE PULSE R θJA =135 °C/W TA = 25°C
10
1s 10s DC
s
0m
s
0.05 0.01 0.1
VGS =10V SINGLE PULSE RθJA = 135°C/W A TA = 25°C
0.5 1 2
5
10
30
50
0.1
0.5
10
50 100
300
VDS , DRAIN-SOURCE VOLTAGE (V)
SINGLE PULSE TIME (SEC)
Figure 9. Maximum Safe Operating Area.
Figure 10. Single Pulse Maximum Power Dissipation.
r(t), NORMALIZED EFFECTIVE TRANSIENT THERMAL RESISTANCE
1 0.5 0.2 0.1 0.05 0.02 0.01 0.005 0.002 0.001 0.0001 0.001 0.01 0.1 t1 , TIME (sec) 1 10
D = 0.5 0.2 0.1 0.05 0.02 0.01 Single Pulse P(pk)
R θJA (t) = r(t) * R θJA R θJA =135° C/W
t1
t2
TJ - TA = P * R JA (t) θ Duty Cycle, D = t1 /t2
100
300
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.
Si4920DY Rev.A
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™ DOME™ E2CMOSTM EnSignaTM FACT™ FACT Quiet Series™ FAST
DISCLAIMER
FASTr™ GlobalOptoisolator™ GTO™ HiSeC™ ISOPLANAR™ MICROWIRE™ OPTOLOGIC™ OPTOPLANAR™ PACMAN™ POP™
PowerTrench QFET™ QS™ QT Optoelectronics™ Quiet Series™ SILENT SWITCHER SMART START™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8
SyncFET™ TinyLogic™ UHC™ VCX™
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Preliminary
First Production
No Identification Needed
Full Production
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. G