N-Channel 30-V (D-S) Fast Switching MOSFET PRODUCT SUMMARY F
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Si7840DP
N-Channel 30-V (D-S) Fast Switching MOSFET
PRODUCT SUMMARY
FEATURES
rDS(on)
0.0095 0.014
TrenchFETr Power MOSFET Thermal Resistance PowerPAKt Package with 1.07-mm Profile
APPLICATIONS
DC/DC Converters Optimized "High-Side" Synchronous Rectifier Operation
PowerPAKt SO-8
6.15
5.15
N-Channel MOSFET Bottom View
ABSOLUTE MAXIMUM RATINGS 25_C UNLESS OTHERWISE NOTED)
Parameter
Drain-Source Voltage Gate-Source Voltage Continuous Drain Current 150_C)a Pulsed Drain Current Continuous Source Current (Diode Conduction)a Avalanche Current Avalanche Energy Maximum Power Dissipationa Operating Junction Storage Temperature Range 25_C 70_C 25_C 70_C
Symbol
secs
Steady State
Unit
Tstg
THERMAL RESISTANCE RATINGS
Parameter
Maximum Junction-to-Ambienta Maximum Junction-to-Case (Drain) Notes Surface Mounted Board. Document Number: 71624 S-05804-Rev. 25-Feb-02 www.vishay.com Steady State Steady State RthJA RthJC
Symbol
Typical
Maximum
Unit
_C/W
Si7840DP
MOSFET SPECIFICATIONS 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) VGS, 55_C 0.0077 0.0115 0.75 0.0095 0.014 "100
Symbol
Test Condition
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 td(on) td(off) di/dt A/ms VGEN 15.5
Notes Pulse test; pulse width duty cycle Guaranteed design, subject production testing.
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Output Characteristics
thru Drain Current Drain Current
Transfer Characteristics
125_C 25_C -55_C
Drain-to-Source Voltage
Gate-to-Source Voltage
www.vishay.com
Document Number: 71624 S-05804-Rev. 25-Feb-02
Si7840DP
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
On-Resistance Drain Current
0.020 2500
Capacitance
DS(on) On-Resistance
0.016 Capacitance (pF) 0.012 0.008
2000 Ciss 1500
1000
Coss
0.004
Crss
0.000
Drain Current
Drain-to-Source Voltage
Gate Charge
Gate-to-Source Voltage
On-Resistance Junction Temperature
DS(on) On-Resistance (Normalized)
Total Gate Charge (nC)
Junction Temperature (_C)
Source-Drain Diode Forward Voltage
0.05 0.04
On-Resistance Gate-to-Source Voltage
DS(on) On-Resistance
Source Current
150_C
0.03
0.02
25_C
0.01
0.00
Source-to-Drain Voltage
Gate-to-Source Voltage
Document Number: 71624 S-05804-Rev. 25-Feb-02
www.vishay.com
Si7840DP
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Threshold Voltage
-0.0 Power -0.2 -0.4 -0.6 -0.8 -1.0 0.001 0.01 Time (sec) Temperature (_C) GS(th) Variance
Single Pulse Power, Juncion-To-Ambient
Normalized Thermal Transient Impedance, Junction-to-Ambient
Normalized Effective Transient Thermal Impedance Duty Cycle
Notes:
0.05 0.02
Duty Cycle,
Unit Base RthJA 68_C/W
Single Pulse 0.01 10-4 10-3 10-2 10-1 Square Wave Pulse Duration (sec)
PDMZthJA(t) Surface Mounted
Normalized Thermal Transient Impedance, Junction-to-Case
Normalized Effective Transient Thermal Impedance Duty Cycle
0.05 0.02 Single Pulse
0.01 10-4 10-3 10-2 10-1 Square Wave Pulse Duration (sec)
www.vishay.com
Document Number: 71624 S-05804-Rev. 25-Feb-02
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