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 SI4837DY
New Product
Vishay Siliconix
P-Channel 30-V (D-S) MOSFET with Schottky Diode
FEATURES
ID (A)
8.3 6.8
MOSFET PRODUCT SUMMARY
VDS (V)
-30
rDS(on) (W)
0.020 @ VGS = -10 V 0.030 @ VGS = -4.5 V
D TrenchFETr Power MOSFET D LITTLE FOOT Plust Schottky
APPLICATIONS
D Battery Charging D DC/DC Converters - Asynchronous Buck - Voltage Inverter
SCHOTTKY PRODUCT SUMMARY
VKA (V)
30
Vf (V) Diode Forward Voltage
0.53 V @ 3 A
IF (A)
3
S
K
SO-8
K S S G 1 2 3 4 Top View 8 7 6 5 A D D D G
D P-Channel MOSFET
A
ABSOLUTE MAXIMUM RATINGS (TA = 25_C UNLESS OTHERWISE NOTED)
Parameter
Drain-Source Voltage (MOSFET) Reverse Voltage (Schottky) Gate-Source Voltage (MOSFET) Continuous Drain Current (TJ = 150_C) (MOSFET)a, b _ Pulsed Drain Current (MOSFET) Continuous Source Current (MOSFET Diode Conduction)a, b Average Foward Current (Schottky) Pulsed Foward Current (Schottky) Maximum Power Dissipation (MOSFET)a, b Maximum Power Dissipation (Schottky)a, b Operating Junction and Storage Temperature Range Notes a. Surface Mounted on FR4 Board. b. t v 10 sec. Document Number: 71662 S-04246--Rev. A, 16-Jul-01 www.vishay.com TA = 25_C TA = 70_C TA = 25_C TA = 70_C TJ, Tstg PD TA = 25_C TA = 70_C
Symbol
VDS VKA VGS ID IDM IS IF IFM
10 Sec
-30 30 "20 -8.3 -6.6 -40 -2.3 3 20 2.5 1.6 1.5 0.98
Steady State
Unit
V
-6.1 -4.9 A -1.25
1.38 0.88 1.0 0.64 -55 to 150 _C W
1
SI4837DY
Vishay Siliconix
THERMAL RESISTANCE RATINGS
Parameter
Maximum Junction-to-Ambient (t v 10 sec)a
New Product
Device
MOSFET Schottky MOSFET
Symbol
Typical
37 65
Maximum
50 81 90 125 25 62.5
Unit
RthJA
70 100 20
Maximum Junction-to-Ambient (t = steady state)a
Schottky MOSFET RthJF
_C/W _
Maximum Junction-to-Foot (Drain)
Schottky
50
Notes a. Surface Mounted on FR4 Board. b. t v 10 sec.
MOSFET SPECIFICATIONS (TJ = 25_C UNLESS OTHERWISE NOTED)
Parameter Static
Gate Threshold Voltage Gate-Body Leakage Zero Gate Voltage Drain Current On-State Drain Currenta Drain-Source On-State Resistancea Forward Transconductancea Diode Forward Voltagea VGS(th) IGSS IDSS ID(on) rDS(on) gfs VSD VDS = VGS, ID = -250 mA VDS = 0 V, VGS = "20 V VDS = -24 V, VGS = 0 V VDS = -24 V, VGS = 0 V, TJ = 75_C VDS w -5 V, VGS = -10 V VGS = -10 V, ID = -8.3 A VGS = -4.5 V, ID = -6.8 A VDS = -15 V, ID = -8.3 A IS = -2.3 A, VGS = 0 V -20 0.0165 0.0245 22 -0.75 -1.1 0.020 0.030 W S V -1.0 "100 -1 -10 V nA mA m A
Symbol
Test Condition
Min
Typ
Max
Unit
Dynamicb
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 = -2.3 A, di/dt = 100 A/ms VDD = -15 V, RL = 15 W ID ^ -1 A, VGEN = -10 V, RG = 6 W VDS = -15 V, VGS = -5 V, ID = -8.3 A 22 9 6.6 1.9 17 15 56 21 45 26 23 85 32 70 ns W 33 nC
Notes a. Pulse test; pulse width v 300 ms, duty cycle v 2%. b. Guaranteed by design, not subject to production testing.
SCHOTTKY SPECIFICATIONS (TJ = 25_C UNLESS OTHERWISE NOTED)
Parameter
Forward Voltage Drop
Symbol
VF
Test Condition
IF = 3 A IF = 3 A, TJ = 125_C Vr = 30 V Vr = 30 V, TJ = 75_C Vr = 30 V, TJ = 125_C Vr = 15 V
Min
Typ
0.485 0.42 0.008 0.4 6.5 102
Max
0.53 0.47 0.1 5 20
Unit
V
Maximum Reverse Leakage Current
Irm CT
mA
Junction Capacitance
pF
www.vishay.com
2
Document Number: 71662 S-04246--Rev. A, 16-Jul-01
SI4837DY
New Product
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Output Characteristics
50 VGS = 10 thru 5 V 40 I D - Drain Current (A) I D - Drain Current (A) 40 50
Vishay Siliconix
MOSFET
Transfer Characteristics
30
4V
30
20
20 TC = 125_C 10 25_C -55_C 0
10
3V
0 0 2 4 6 8 10
0
1
2
3
4
5
VDS - Drain-to-Source Voltage (V)
VGS - Gate-to-Source Voltage (V)
On-Resistance vs. Drain Current
0.05 3500
Capacitance
r DS(on)- On-Resistance ( W )
Ciss 0.04 C - Capacitance (pF) 2800
0.03
VGS = 4.5 V VGS = 10 V
2100
0.02
1400 Coss 700 Crss
0.01
0.00 0 10 20 30 40 50
0 0 6 12 18 24 30
ID - Drain Current (A)
VDS - Drain-to-Source Voltage (V)
Gate Charge
10 V GS - Gate-to-Source Voltage (V) VDS = 15 V ID = 8.3 A r DS(on)- On-Resistance ( W ) (Normalized) 8 1.8
On-Resistance vs. Junction Temperature
VGS = 10 V ID = 8.3 A
1.6
1.4
6
1.2
4
1.0
2
0.8
0 0 8 16 24 32 40
0.6 -50
-25
0
25
50
75
100
125
150
Qg - Total Gate Charge (nC)
TJ - Junction Temperature (_C)
Document Number: 71662 S-04246--Rev. A, 16-Jul-01
www.vishay.com
3
SI4837DY
Vishay Siliconix
New Product
MOSFET
On-Resistance vs. Gate-to-Source Voltage
0.070
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Source-Drain Diode Forward Voltage
50
r DS(on)- On-Resistance ( W )
I S - Source Current (A)
0.056
TJ = 150_C 10
0.042
0.028
ID = 8.3 A
TJ = 25_C
0.014
1 0.00 0.25 0.50 0.75 1.00 1.25 1.50
0.000 0 2 4 6 8 10
VSD - Source-to-Drain Voltage (V)
VGS - Gate-to-Source Voltage (V)
Threshold Voltage
0.8 200
Single Pulse Power, Junction-to-Ambient
0.6 VGS(th) Variance (V) ID = 250 mA Power (W)
160
0.4
120
0.2
80
0.0 40 -0.2
-0.4 -50
0 -25 0 25 50 75 100 125 150 0.001 0.01 0.1 Time (sec) 1 10
TJ - Temperature (_C)
Normalized Thermal Transient Impedance, Junction-to-Ambient
2 1 Duty Cycle = 0.5 Normalized Effective Transient Thermal Impedance
0.2 0.1 0.1 0.05 0.02 Single Pulse 0.01 10-4 10-3 10-2 10-1 1
Notes: PDM t1 t2 1. Duty Cycle, D = t1 t2
2. Per Unit Base = RthJA = 70_C/W 3. TJM - TA = PDMZthJA(t) 4. Surface Mounted
10
100
600
Square Wave Pulse Duration (sec)
www.vishay.com
4
Document Number: 71662 S-04246--Rev. A, 16-Jul-01
SI4837DY
New Product
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
2 1 Normalized Effective Transient Thermal Impedance Duty Cycle = 0.5
Vishay Siliconix
MOSFET
Normalized Thermal Transient Impedance, Junction-to-Foot
0.2 0.1 0.1 0.05 0.02 Single Pulse 0.01 10-4 10-3 10-2 10-1 Square Wave Pulse Duration (sec) 1 10
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Reverse Current vs. Junction Temperature
100 10 I R - Reverse Current (mA) I F - Forward Current (A) 1 5
SCHOTTKY
Forward Voltage Drop
TJ = 150_C 1
0.1
30 V
20 V
0.01
TJ = 25_C
0.001
0.0001 0 25 50 75 100 125 150
0.1 0 0.2 0.4 0.6 0.8
TJ - Junction Temperature (_C)
VF - Forward Voltage Drop (V)
500
Capacitance
CT - Junction Capacitance (pF)
400
300
200
100
0 0 6 12 18 24 30
VKA - Reverse Voltage (V Document Number: 71662 S-04246--Rev. A, 16-Jul-01 www.vishay.com
5
SI4837DY
Vishay Siliconix
New Product
SCHOTTKY TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Normalized Thermal Transient Impedance, Junction-to-Ambient
2 1 Duty Cycle = 0.5 Normalized Effective Transient Thermal Impedance
0.2 0.1 0.1 0.05 0.02
Notes: PDM t1 t2 1. Duty Cycle, D = t1 t2
2. Per Unit Base = RthJA = 100_C/W 3. TJM - TA = PDMZthJA(t) 4. Surface Mounted
Single Pulse 0.01 10-4
10-3
10-2
10-1
1
10
100
600
Square Wave Pulse Duration (sec)
2 1 Normalized Effective Transient Thermal Impedance Duty Cycle = 0.5
Normalized Thermal Transient Impedance, Junction-to-Foot
0.2 0.1 0.1 0.05 0.02
Single Pulse 0.01 10-4 10-3 10-2 10-1 Square Wave Pulse Duration (sec) 1 10
www.vishay.com
6
Document Number: 71662 S-04246--Rev. A, 16-Jul-01


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