Vishay Siliconix
Si2304DDS
New Product
Document Number: 65175
S09-1496-Rev. A, 10-Aug-09
www.vishay.com
1
N-Channel 30-V (D-S) MOSFET
FEATURES
• Halogen-free According to IEC 61249-2-21
Definition
• TrenchFET® Power MOSFET
• 100 % Rg Tested
• Compliant to RoHS Directive 2002/95/EC
APPLICATIONS
• DC/DC Converter
PRODUCT SUMMARY
VDS (V) RDS(on) (Ω)ID (A)aQg (Typ.)
30
0.060 at VGS = 10 V 3.6
2.1 nC
0.075 at VGS = 4.5 V 3.6
G
S
D
Top View
2
3
TO-236
(SOT-23)
1
Si2304DDS (P4)*
* Marking Code
Ordering Information: Si2304DDS-T1-GE3 (Lead (Pb)-free and Halogen-free) N-Channel MOSFET
G
D
S
Notes:
a. Package limited
b. Surface Mounted on 1" x 1" FR4 board.
c. t = 5 s.
d. Maximum under steady state conditions is 130 °C/W.
ABSOLUTE MAXIMUM RATINGS TA = 25 °C, unless otherwise noted
Parameter Symbol Limit Unit
Drain-Source Voltage VDS 30 V
Gate-Source Voltage VGS ± 20
Continuous Drain Current (TJ = 150 °C)
TC = 25 °C
ID
3.6a
A
TC = 70 °C 3.3
TA = 25 °C 3.3
TA = 70 °C 2.7
Pulsed Drain Current IDM 15
Continuous Source-Drain Diode Current
TC = 25 °C IS
1.4
TA = 25 °C 0.9b, c
Maximum Power Dissipation
TC = 25 °C
PD
1.7
W
TC = 70 °C 1.1
TA = 25 °C 1.1b, c
TA = 70 °C 0.7b, c
Operating Junction and Storage Temperature Range TJ, Tstg - 55 to 150 °C
Soldering Recommendations (Peak Temperature)d, e 260
THERMAL RESISTANCE RATINGS
Parameter Symbol Typical Maximum Unit
Maximum Junction-to-Ambientb, d t ≤ 5 s RthJA 90 115 °C/W
Maximum Junction-to-Foot (Drain) Steady State RthJF 60 75
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Document Number: 65175
S09-1496-Rev. A, 10-Aug-09
Vishay Siliconix
Si2304DDS
New Product
Notes:
a. Pulse test; pulse width ≤ 300 µs, duty cycle ≤ 2 %
b. Guaranteed by design, not subject to production testing.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
SPECIFICATIONS TJ = 25 °C, unless otherwise noted
Parameter Symbol Test Conditions Min. Typ. Max. Unit
Static
Drain-Source Breakdown Voltage VDS VGS = 0 V, ID = 250 µA 30 V
VDS Temperature Coefficient ΔVDS/TJID = 250 µA 31 mV/°C
VGS(th) Temperature Coefficient ΔVGS(th)/TJ- 5
Gate-Source Threshold Voltage VGS(th) VDS = VGS , ID = 250 µA 1.2 2.2 V
Gate-Source Leakage IGSS VDS = 0 V, VGS = ± 20 V ± 100 nA
Zero Gate Voltage Drain Current IDSS
VDS = 30 V, VGS = 0 V 1µA
VDS = 30 V, VGS = 0 V, TJ = 55 °C 10
On-State Drain CurrentaID(on) V
DS ≥ 5 V, VGS = 10 V 10 A
Drain-Source On-State ResistanceaRDS(on)
VGS = 10 V, ID = 3.2 A 0.049 0.060 Ω
VGS = 4.5 V, ID = 2.8 A 0.061 0.075
Forward Transconductanceagfs VDS = 15 V, ID = 4.8 A 11 S
Dynamicb
Input Capacitance Ciss
VDS = 15 V, VGS = 0 V, f = 1 MHz
235
pFOutput Capacitance Coss 45
Reverse Transfer Capacitance Crss 17
Total Gate Charge Qg VDS = 15 V, VGS = 10 V, ID = 3.4 A 4.5 6.7
nC
VDS = 15 V, VGS = 4.5 V, ID = 3.4 A
2.1 3.2
Gate-Source Charge Qgs 0.85
Gate-Drain Charge Qgd 0.65
Gate Resistance Rgf = 1 MHz 0.8 4.4 8.8 Ω
Tur n - O n D e l ay Time td(on)
VDD = 15 V, RL = 5.6 Ω
ID ≅ 2.7 A, VGEN = 4.5 V, Rg = 1 Ω
12 20
ns
Rise Time tr 50 75
Turn-Off Delay Time td(off) 12 20
Fall Time tf22 35
Tur n - O n D e l ay Time td(on)
VDD = 15 V, RL = 5.6 Ω
ID ≅ 2.7 A, VGEN = 10 V, Rg = 1 Ω
510
Rise Time tr 12 20
Turn-Off Delay Time td(off) 10 15
Fall Time tf510
Drain-Source Body Diode Characteristics
Continuous Source-Drain Diode Current ISTC = 25 °C 1.4 A
Pulse Diode Forward Current ISM 15
Body Diode Voltage VSD IS = 2.7 A, VGS = 0 V 0.8 1.2 V
Body Diode Reverse Recovery Time trr
IF = 2.7 A, dI/dt = 100 A/µs, TJ = 25 °C
10 20 ns
Body Diode Reverse Recovery Charge Qrr 510nC
Reverse Recovery Fall Time ta6ns
Reverse Recovery Rise Time tb4
Document Number: 65175
S09-1496-Rev. A, 10-Aug-09
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Vishay Siliconix
Si2304DDS
New Product
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
Output Characteristics
On-Resistance vs. Drain Current and Gate Voltage
Gate Charge
0
3
6
9
12
15
0.0 0.5 1.0 1.5 2.0 2.5 3.0
VGS =10Vthru4V
VGS =3V
VDS - Drain-to-Source Voltage (V)
- Drain Current (A)I D
0.00
0.02
0.04
0.06
0.08
0.10
03691215
VGS =4.5V
VGS =10V
- On-Resistance (Ω)RDS(on)
ID- Drain Current (A)
0
2
4
6
8
10
012345
VDS =24V
VDS =7.5V
ID=3.4A
VDS =15V
- Gate-to-Source Voltage (V)
Qg- Total Gate Charge (nC)
VGS
Transfer Characteristics
Capacitance
On-Resistance vs. Junction Temperature
0
1
2
3
4
5
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
TC= 25 °C
TC= 125 °C
TC= - 55 °C
VGS - Gate-to-Source Voltage (V)
- Drain Current (A)I D
Crss
0
50
100
150
200
250
300
0 5 10 15 20 25 30
Ciss
Coss
VDS - Drain-to-Source Voltage (V)
C - Capacitance (pF)
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
- 50 - 25 0 25 50 75 100 125 150
ID=3.2A
VGS =10V
TJ-Junction Temperature (°C)
(Normalized)
- On-ResistanceRDS(on)
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Document Number: 65175
S09-1496-Rev. A, 10-Aug-09
Vishay Siliconix
Si2304DDS
New Product
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
Source-Drain Diode Forward Voltage
Threshold Voltage
0.1
1
10
100
0.0 0.3 0.6 0.9 1.2 1.5
TJ= 150 °C TJ= 25 °C
VSD -Source-to-Drain Voltage (V)
- Source Current (A)I S
1.2
1.4
1.6
1.8
2.0
2.2
2.4
- 50 - 25 0 25 50 75 100 125 150
ID= 250 µA
(V)VGS(th)
TJ- Temperature (°C)
On-Resistance vs. Gate-to-Source Voltage
Single Pulse Power
0.04
0.06
0.08
0.10
0.12
0.14
0246810
ID=3.2A
TJ=25 °C
TJ= 125 °C
- On-Resistance (Ω)
RDS(on)
VGS - Gate-to-Source Voltage (V)
0
5
10
15
20
25
Power (W)
Time (s)
10 10000.10.010.001 1001
Safe Operating Area, Junction-to-Ambient
100
1
0.1 1 10 100
0.01
10
0.1
TA= 25 °C
Single Pulse
100 ms
Limited byR
DS(on)*
BVDSS Limited
1ms
100 µs
10 ms
DC
VDS - Drain-to-Source Voltage (V)
*VGS > minimumVGS at which RDS(on) is specified
- Drain Current (A)
ID
1s,10s
Document Number: 65175
S09-1496-Rev. A, 10-Aug-09
www.vishay.com
5
Vishay Siliconix
Si2304DDS
New Product
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
* The power dissipation PD is based on TJ(max) = 150 °C, using junction-to-case thermal resistance, and is more useful in settling the upper
dissipation limit for cases where additional heatsinking is used. It is used to determine the current rating, when this rating falls below the package
limit.
Current Derating*
0
1
2
3
4
5
0 255075100125150
Package Limited
TC- Case Temperature (°C)
ID- Drain Current (A)
Power Derating
0.0
0.5
1.0
1.5
2.0
25 50 75 100 125 150
TC- Case Temperature (°C)
Power (W)
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Document Number: 65175
S09-1496-Rev. A, 10-Aug-09
Vishay Siliconix
Si2304DDS
New Product
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and
reliability data, see www.vishay.com/ppg?65175.
Normalized Thermal Transient Impedance, Junction-to-Ambient
10-3 10-2 110 100010-1
10-4 100
0.2
0.1
Square WavePulse Duration (s)
Normalized Effective Transient
Thermal Impedance
1
0.1
0.01
t1
t2
Notes:
PDM
1. Duty Cycle, D =
2. Per Unit Base = RthJA =130 °C/W
3. TJM -T
A=P
DMZthJA(t)
t1
t2
4. Surface Mounted
Duty Cycle = 0.5
Single Pulse
0.02
0.05
Normalized Thermal Transient Impedance, Junction-to-Foot
1
0.1
0.01
Duty Cycle = 0.5
Square WavePulse Duration (s)
Normalized Effective Transient
Thermal Impedance
10-3 10-2 110-1
10-4
0.02
Single Pulse
0.1
0.2
0.05
Vishay Siliconix
Package Information
Document Number: 71196
09-Jul-01
www.vishay.com
1
SOT-23 (TO-236): 3-LEAD
b
E
E1
1
3
2
Se
e1
D
A2
A
A1C
Seating Plane
0.10 mm
0.004"
CC
L1
L
q
Gauge Plane
Seating Plane
0.25 mm
Dim MILLIMETERS INCHES
Min Max Min Max
A0.89 1.12 0.035 0.044
A10.01 0.10 0.0004 0.004
A20.88 1.02 0.0346 0.040
b0.35 0.50 0.014 0.020
c0.085 0.18 0.0030.007
D2.80 3.04 0.110 0.120
E2.10 2.64 0.0830.104
E11.20 1.40 0.047 0.055
e0.95 BSC 0.0374 Ref
e11.90 BSC 0.0748 Ref
L0.40 0.60 0.016 0.024
L10.64 Ref 0.025 Ref
S0.50 Ref 0.020 Ref
q3°8°3°8°
ECN: S-03946-Rev. K, 09-Jul-01
DWG: 5479
AN807
Vishay Siliconix
Document Number: 70739
26-Nov-03
www.vishay.com
1
Mounting LITTLE FOOTR SOT-23 Power MOSFETs
Wharton McDaniel
Surface-mounted LITTLE FOOT power MOSFETs use integrated
circuit and small-signal packages which have been been modified
to provide the heat transfer capabilities required by power devices.
Leadframe materials and design, molding compounds, and die
attach materials have been changed, while the footprint of the
packages remains the same.
See Application Note 826, Recommended Minimum Pad
Patterns With Outline Drawing Access for Vishay Siliconix
MOSFETs, (http://www.vishay.com/doc?72286), for the basis
of the pad design for a LITTLE FOOT SOT-23 power MOSFET
footprint . In converting this footprint to the pad set for a power
device, designers must make two connections: an electrical
connection and a thermal connection, to draw heat away from the
package.
The electrical connections for the SOT-23 are very simple. Pin 1 is
the gate, pin 2 is the source, and pin 3 is the drain. As in the other
LITTLE FOOT packages, the drain pin serves the additional
function of providing the thermal connection from the package to
the PC board. The total cross section of a copper trace connected
to the drain may be adequate to carry the current required for the
application, but it may be inadequate thermally. Also, heat spreads
in a circular fashion from the heat source. In this case the drain pin
is the heat source when looking at heat spread on the PC board.
Figure 1 shows the footprint with copper spreading for the SOT-23
package. This pattern shows the starting point for utilizing the
board area available for the heat spreading copper. To create this
pattern, a plane of copper overlies the drain pin and provides
planar copper to draw heat from the drain lead and start the
process of spreading the heat so it can be dissipated into the
ambient air. This pattern uses all the available area underneath the
body for this purpose.
FIGURE 1. Footprint With Copper Spreading
0.114
2.9
0.059
1.5
0.0394
1.0
0.037
0.95
0.150
3.8
0.081
2.05
Since surface-mounted packages are small, and reflow soldering
is the most common way in which these are affixed to the PC
board, “thermal” connections from the planar copper to the pads
have not been used. Even if additional planar copper area is used,
there should be no problems in the soldering process. The actual
solder connections are defined by the solder mask openings. By
combining the basic footprint with the copper plane on the drain
pins, the solder mask generation occurs automatically.
A final item to keep in mind is the width of the power traces. The
absolute minimum power trace width must be determined by the
amount of current it has to carry. For thermal reasons, this
minimum width should be at least 0.020 inches. The use of wide
traces connected to the drain plane provides a low-impedance
path for heat to move away from the device.
Application Note 826
Vishay Siliconix
Document Number: 72609 www.vishay.com
Revision: 21-Jan-08 25
APPLICATION NOTE
RECOMMENDED MINIMUM PADS FOR SOT-23
0.106
(2.692)
Recommended Minimum Pads
Dimensions in Inches/(mm)
0.022
(0.559)
0.049
(1.245)
0.029
(0.724)
0.037
(0.950)
0.053
(1.341)
0.097
(2.459)
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Revision: 08-Feb-17 1Document Number: 91000
Disclaimer
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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including but not limited to the warranty expressed therein.
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