NDS8434 Fairchild Semiconductor, NDS8434 Datasheet - Page 6

• Manufacturer Part Number: NDS8434
• Description: MOSFET P-CH 20V 6.5A 8-SOIC
• Manufacturer: Fairchild Semiconductor

Specifications of NDS8434

• Fet Type: MOSFET P-Channel, Metal Oxide
• Fet Feature: Logic Level Gate
• Rds On (max) @ Id, Vgs: 35 mOhm @ 6.5A, 4.5V
• Drain To Source Voltage (vdss): 20V
• Current - Continuous Drain (id) @ 25° C: 6.5A
• Vgs(th) (max) @ Id: 1V @ 250µA
• Gate Charge (qg) @ Vgs: 80nC @ 4.5V
• Input Capacitance (ciss) @ Vds: 2330pF @ 10V
• Power - Max: 1W
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: NDS8434TR

Typical Electrical and Thermal Characteristics
Figure 13. Transconductance Variation with Drain
4 0
3 2
2 4
1 6
8
7
6
5
4
8
0
Figure 15. Maximum Steady-State Drain
0
0
1c
1 b
Current and Temperature.
V
0 .0 0 5
0 .0 0 2
0 .0 0 1
DS
0 .0 5
0 .0 2
0 .0 1
Current versus Copper Mounting Pad
Area.
0 .5
0 .2
0 .1
0 .0001
= -5.0V
1
0.2
-4
2oz COPPER MOUNTING PAD AREA (in
D = 0.5
I
D
Figure 17. Transient Thermal Response Curve
Note: Thermal characterization performed using the conditions described in note 1c. Transient thermal response will change
0.2
, DRAIN CURRENT (A)
0.4
-8
0.1
0.05
0 .001
0.02
depending on the circuit board design.
0.01
Single Pulse
T
J
-12
0.6
= -55°C
25°C
125°C
4.5"x5" FR-4 Board
T
Still Air
V
A
G S
= 2 5 C
0 .0 1
= - 4 . 5 V
2
-16
0.8
o
)
-20
1a
1
0 .1
t , TIME (sec)
(continued)
1
Figure 16. Maximum Safe Operating Area.
0.03
0.01
Figure 14. SO-8 Maximum Steady-State Power
0.3
0.1
2.5
1.5
0.5
5 0
3 0
1 0
3
1
2
1
0.1
0
1c
R
1 b
SINGLE PULSE
Dissipation versus Copper Mounting Pad Area.
J A
V
.
0.2
T
GS
= See Note 1c
A
= 25°C
= -4.5V
1
0.2
2oz COPPER MOUNTING PAD AREA (in
- V
0.5
DS
, DRAIN-SOURCE VOLTAGE (V)
1
0.4
P(pk)
2
T - T
Duty Cycle, D = t
1 0
R
J
R
JA
t
1
A
JA
(t) = r(t) * R
t
= P * R
0.6
2
= See Note 1c
5
1 0
4.5"x5" FR-4 Board
T
Still Air
JA
1
A
/ t
= 2 5 C
(t)
JA
1 0 0
2
2
0.8
)
o
2 0
NDS8434 Rev. A3
3 0 0
5 0
1a
1