FDMS2508SDC Fairchild Semiconductor, FDMS2508SDC Datasheet - Page 7

• Manufacturer Part Number: FDMS2508SDC
• Description: MOSFET N-CH 25V DUAL POWER56
• Manufacturer: Fairchild Semiconductor
• Series: Dual Cool™, PowerTrench®, SyncFET™r

Specifications of FDMS2508SDC

• Fet Type: MOSFET N-Channel, Metal Oxide
• Fet Feature: Logic Level Gate
• Rds On (max) @ Id, Vgs: 1.95 mOhm @ 28A, 10V
• Drain To Source Voltage (vdss): 25V
• Current - Continuous Drain (id) @ 25° C: 34A
• Vgs(th) (max) @ Id: 3V @ 1mA
• Gate Charge (qg) @ Vgs: 69nC @ 10V
• Input Capacitance (ciss) @ Vds: 4515pF @ 13V
• Power - Max: 3.3W
• Mounting Type: Surface Mount
• Package / Case: *
• Configuration: Dual
• Transistor Polarity: N-Channel
• Resistance Drain-source Rds (on): 1.95 mOhms
• Forward Transconductance Gfs (max / Min): 170 S
• Drain-source Breakdown Voltage: 25 V
• Gate-source Breakdown Voltage: 20 V
• Continuous Drain Current: 49 A
• Power Dissipation: 78 W
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Gate Charge Qg: 22 nC
• Minimum Operating Temperature: - 55 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FDMS2508SDCTR

©2010 Fairchild Semiconductor Corporation
FDMS2508SDC Rev.C
Typical Characteristics
SyncFET Schottky body diode
Characteristics
Fairchild’s SyncFET process embeds a Schottky diode in parallel
with PowerTrench MOSFET. This diode exhibits similar
characteristics to a discrete external Schottky diode in parallel
with a MOSFET. Figure 14 shows the reverse recovery
characteristic of the FDMS2508SDC.
diode reverse recovery characteristic
30
25
20
15
10
-5
Figure 14. FDMS2508SDC SyncFET body
5
0
0
50
TIME (ns)
di/dt = 300 A/
100
(continued)
μ
s
150
200
7
Schottky barrier diodes exhibit significant leakage at high tem-
perature and high reverse voltage. This will increase the power
in the device.
10
10
10
10
10
Figure 15. SyncFET body diode reverse
leakage versus drain-source voltage
-2
-3
-4
-5
-6
0
5
V
DS
, REVERSE VOLTAGE (V)
10
T
T
T
J
J
J
= 125
= 100
= 25
15
o
o
o
C
C
C
20
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25