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SI4450DY Datasheet, PDF (2/5 Pages) Fairchild Semiconductor – 60V N-Channel PowerTrench MOSFET
Electrical Characteristics TA = 25°C unless otherwise noted
Symbol
Parameter
Test Conditions
Min Typ Max Units
Off Characteristics
BVDSS
Drain-Source Breakdown Voltage
VGS = 0 V, ID = 250 µA
60
∆BVDSS
∆TJ
IDSS
Breakdown Voltage Temperature
Coefficient
Zero Gate Voltage Drain Current
ID = 250 µA, Referenced to 25°C
VDS = 48 V, VGS = 0 V
IGSSF
Gate-Body Leakage Current, Forward VGS = 20 V, VDS = 0 V
IGSSR
Gate-Body Leakage Current, Reverse VGS = -20 V, VDS = 0 V
V
27
mV/°C
1
µA
100 nA
-100 nA
On Characteristics (Note 2)
VGS(th)
Gate Threshold Voltage
∆VGS(th)
∆TJ
RDS(on)
Gate Threshold Voltage
Temperature Coefficient
Static Drain-Source
On-Resistance
ID(on)
gFS
On-State Drain Current
Forward Transconductance
VDS = VGS, ID = 250 µA
2 2.5
ID = 250 µA, Referenced to 25°C
-4.5
4
V
mV/°C
VGS = 10 V, ID = 8 A
0.017 0.020 Ω
VGS = 10 V, ID = 8 A, TJ = 125°C
0.027 0.032
VGS = 6 V, ID = 7.5 A
0.019 0.025
VGS = 10 V, VDS = 5 V
25
A
VDS = 5 V, ID = 8 A
28
mS
Dynamic Characteristics
Ciss
Input Capacitance
Coss
Output Capacitance
Crss
Reverse Transfer Capacitance
VDS = 15 V, VGS = 0 V
f = 1.0 MHz
1850
pF
290
pF
100
pF
Switching Characteristics
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
(Note 2)
VDD = 30 V, ID = 1 A
VGS = 10 V, RGEN = 6 Ω
VDS = 15 V, ID = 8 A
VGS = 10 V,
13 24
ns
8
16
ns
16 26
ns
32 50
ns
30
42
nC
8.5
nC
5.5
nC
Drain-Source Diode Characteristics and Maximum Ratings
IS
Maximum Continuous Drain-Source Diode Forward Current
2.1
A
VSD
Drain-Source Diode Forward Voltage VGS = 0 V, IS = 2.1 A
(Note 2)
0.74 1.2
V
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) 50° C/W when
mounted on a 0.5 in2
pad of 2 oz. copper.
b) 105° C/W when
mounted on a 0.02 in2
pad of 2 oz. copper.
c) 125° C/W when
mounted on a minimum pad.
Scale 1 : 1 on letter size paper
2: Pulse Test: Pulse Width ≤ 300 µs, Duty Cycle ≤ 2.0%
Si4450DY Rev A