Si4946EY
Vishay Siliconix
Dual N-Channel 60-V (D-S), 175_C MOSFET
PRODUCT SUMMARY
VDS (V)
60
rDS(on) (W)
0.055 @ VGS = 10 V 0.075 @ VGS = 4.5 V
ID (A)
4.5 3.9
D
SO-8
S1 G1 S2 G2 1 2 3 4 Top View Ordering Information: Si4946EY Si4946EY-T1 (with Tape and Reel) S N-Channel MOSFET 8 7 6 5 D1 D1 D2 D2 G
ABSOLUTE MAXIMUM RATINGS (TA = 25_C UNLESS OTHERWISE NOTED)
Parameter
Drain-Source Voltage Gate-Source Voltage Continuous Drain Current (TJ = 175_C)a Pulsed Drain Current Continuous Source Current (Diode Conduction)a Maximum Power Dissipationa Operating Junction and Storage Temperature Range TA = 25_C TA = 70_C PD TJ, Tstg TA = 25_C TA = 70_C ID IDM IS
Symbol
VDS VGS
Limit
60 "20 4.5 3.8 30 2 2.4 1.7 - 55 to 175
Unit
V
A
W _C
THERMAL RESISTANCE RATINGS
Parameter
Maximum Junction-to-Ambienta Notes a. Surface Mounted on FR4 Board, t v 10 sec. Document Number: 70157 S-03950—Rev. D, 26-May-03 www.vishay.com
Symbol
RthJA
Limit
62.5
Unit
_C/W
2-1
Si4946EY
Vishay Siliconix
SPECIFICATIONS (TJ = 25_C UNLESS OTHERWISE NOTED)
Parameter Static
Gate Threshold Voltage Gate-Body Leakage Zero Gate Voltage Drain Current On-State Drain Currentb Drain-Source On-State Drain Source On State Resistanceb Forward Transconductanceb Diode Forward Voltageb VGS(th) IGSS IDSS ID(on) rDS( ) DS(on) gfs VSD VDS = VGS, ID = 250 mA VDS = 0 V, VGS = "20 V VDS = 60 V, VGS = 0 V VDS = 60 V, VGS = 0 V, TJ = 55_C VDS = 5 V, VGS = 10 V VGS = 10 V, ID = 4.5 A VGS = 4.5 V, ID = 3.9 A VDS = 15 V, ID = 4.5 A IS = 2 A, VGS = 0 V 20 0.045 0.055 13 0.9 1.2 0.055 0.075 1 "100 2 25 V nA mA A W S V
Symbol
Test Condition
Min
Typa
Max
Unit
Dynamica
Total Gate Charge Gate-Source Charge Gate-Drain Charge Gate Resistance Turn-On Delay Time Rise Time Turn-Off Delay Time Fall Time Source-Drain Reverse Recovery Time Qg Qgs Qgd Rg td(on) tr td(off) tf trr IF = 2 A, di/dt = 100 A/ms VDD = 30 V, RL = 30 W V, ID ^ 1 A, VGEN = 10 V, RG = 6 W 1 13 11 36 11 35 VDS = 30 V, VGS = 10 V, ID = 4.5 A 19 4 3 3.6 20 20 60 20 60 ns W 30 nC
Notes a. For design aid only; not subject to production testing. b. Pulse test; pulse width v 300 ms, duty cycle v 2%.
www.vishay.com
2-2
Document Number: 70157 S-03950—Rev. D, 26-May-03
Si4946EY
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Output Characteristics
30 VGS = 10 thru 5 V 24 I D - Drain Current (A) I D - Drain Current (A) 4V 18 24 30 TC = - 55_C 25_C 150_C 18
Transfer Characteristics
12
12
6 3V 0 0 1 2 3 4 5
6
0 0 1 2 3 4 5 6
VDS - Drain-to-Source Voltage (V)
VGS - Gate-to-Source Voltage (V)
On-Resistance vs. Drain Current
0.150 1400 1200 C - Capacitance (pF) 1000 800 600 400
Capacitance
0.125 r DS(on) - On-Resistance ( Ω )
0.100
Ciss
0.075
VGS = 4.5 V VGS = 10 V
0.050
0.025
Coss 200 0 0 6 12 18 24 30 0 12 24 36 48 60 Crss
0.000
ID - Drain Current (A)
VDS - Drain-to-Source Voltage (V)
Gate Charge
10 VDS = 30 V ID = 4.5 A V GS - Gate-to-Source Voltage (V) r DS(on) - On-Resistance ( Ω ) (Normalized) 8 2.2
On-Resistance vs. Junction Temperature
VGS = 10 V ID = 4.5 A
1.9
1.6
6
1.3
4
1.0
2
0.7
0 0 4 8 12 16 20
0.4 - 50
- 25
0
25
50
75
100
125
150
175
Qg - Total Gate Charge (nC)
TJ - Junction Temperature (_C)
Document Number: 70157 S-03950—Rev. D, 26-May-03
www.vishay.com
2-3
Si4946EY
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Source-Drain Diode Forward Voltage
20 0.10
On-Resistance vs. Gate-to-Source Voltage
I S - Source Current (A)
10
r DS(on) - On-Resistance ( Ω )
0.08
0.06
ID = 4.5 A
0.04
TJ = 175_C
TJ = 25_C
0.02
1 0.0
0.00 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 2 4 6 8 10
VSD - Source-to-Drain Voltage (V)
VGS - Gate-to-Source Voltage (V)
Threshold Voltage
0.4 0.2 - 0.0 ID = 250 µA - 0.2 - 0.4 - 0.6 10 - 0.8 - 1.0 - 50 0 - 25 0 25 50 75 100 125 150 175 0.01 Power (W) 30 50
Single Pulse Power
40
V GS(th) Variance (V)
20
0.1
1 Time (sec)
10
30
TJ - Temperature (_C)
Normalized Thermal Transient Impedance, Junction-to-Ambient
2 1 Normalized Effective Transient Thermal Impedance
Duty Cycle = 0.5
0.2
Notes:
0.1 0.1 0.05
PDM t1 t2 1. Duty Cycle, D =
0.02 Single Pulse 0.01 10 -4
2. Per Unit Base = RthJA = 62.5_C/W 3. TJM - TA = PDMZthJA(t) 4. Surface Mounted
t1 t2
10 -3
10 -2
10 -1
1
10
30
Square Wave Pulse Duration (sec)
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2-4
Document Number: 70157 S-03950—Rev. D, 26-May-03
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