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SI4621DY Datasheet, PDF (2/10 Pages) Vishay Siliconix – P-Channel 20-V (D-S) MOSFET with Schottky Diode
Si4621DY
Vishay Siliconix
THERMAL RESISTANCE RATINGS
Parameter
Maximum Junction-to-Ambient (MOSFET)b, f
Maximum Junction-to-Foot (Drain) (MOSFET)
Maximum Junction-to-Ambient (Schottky)b, g
Maximum Junction-to-Foot (Drain) (Schottky)
Notes:
b. Surface Mounted on 1" x 1" FR4 board.
c. t = 10 s.
f. Maximum under Steady State conditions is 110 °C/W.
g. Maximum under Steady State conditions is 115 °C/W.
Symbol
RthJA
RthJF
RthJA
RthJF
Typical
55
33
63
39
Maximum
62.5
40
78
47
Unit
°C/W
SPECIFICATIONS (TJ = 25 °C, unless otherwise noted)
Parameter
Symbol
Test Conditions
Static
Drain-Source Breakdown Voltage
VDS Temperature Coefficient
VGS(th) Temperature Coefficient
Gate-Source Threshold Voltage
Gate-Source Leakage
Zero Gate Voltage Drain Current
On-State Drain Currenta
Drain-Source On-State Resistancea
Forward Transconductancea
Dynamicb
Input Capacitance
Output Capacitance
Reverse Transfer Capacitance
Total Gate Charge
VDS
VDS/TJ
VGS(th)/TJ
VGS(th)
IGSS
IDSS
ID(on)
RDS(on)
gfs
VGS = 0 V, ID = - 250 µA
ID = - 250 µA
VDS = VGS, ID = - 250 µA
VDS = 0 V, VGS = ± 20 V
VDS = - 20 V, VGS = 0 V
VDS = - 20 V, VGS = 0 V, TJ = 55 °C
VDS  5 V, VGS = - 10 V
VGS = - 10 V, ID = - 5 A
VGS = - 4.5 V, ID = - 1.1 A
VDS = - 10 V, ID = - 5 A
Ciss
Coss
Crss
Qg
VDS = - 10 V, VGS = 0 V, f = 1 MHz
VDS = - 10 V, VGS = - 10 V, ID = - 6.2 A
Gate-Source Charge
Gate-Drain Charge
Gate Resistance
Turn-On Delay Time
Rise Time
Turn-Off DelayTime
Fall Time
Turn-On Delay Time
Rise Time
Turn-Off DelayTime
Fall Time
Qgs
Qgd
Rg
td(on)
tr
td(off)
tf
td(on)
tr
td(off)
tf
VDS = - 10 V, VGS = - 4.5 V, ID = - 6.2 A
f = 1 MHz
VDD = - 10 V, RL = 2.5 
ID  - 4 A, VGEN = - 4.5 V, Rg = 1 
VDD = - 10 V, RL = 2.5 
ID  - 4 A, VGEN = - 10 V, Rg = 1 
Min.
- 20
-1
- 25
Typ.
- 16
3.6
0.042
0.073
10
450
160
105
8.7
4.5
1.7
1.8
9
15
60
22
15
5
60
20
7
Max.
-3
± 100
-1
- 10
0.054
0.094
13
6.8
25
90
35
25
10
90
30
15
Unit
V
mV/°C
V
nA
µA
A

S
pF
nC

ns
www.vishay.com
Document Number: 73855
2
S11-1648-Rev. D, 15-Aug-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000