参数资料
型号: NDS9945
厂商: Fairchild Semiconductor
文件页数: 4/5页
文件大小: 0K
描述: MOSFET 2N-CH 60V 3.5A 8-SOIC
产品培训模块: High Voltage Switches for Power Processing
SMPS Power Switch
产品变化通告: Mold Compound Change 12/Dec/2007
标准包装: 1
FET 型: 2 个 N 沟道(双)
FET 特点: 逻辑电平门
漏极至源极电压(Vdss): 60V
电流 - 连续漏极(Id) @ 25° C: 3.5A
开态Rds(最大)@ Id, Vgs @ 25° C: 100 毫欧 @ 3.5A,10V
Id 时的 Vgs(th)(最大): 3V @ 250µA
闸电荷(Qg) @ Vgs: 30nC @ 10V
输入电容 (Ciss) @ Vds: 345pF @ 25V
功率 - 最大: 900mW
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 剪切带 (CT)
其它名称: NDS9945CT
Typical Electrical Characteristics (continued)
1000
10
8
I D = 3.5A
V DS = 10V
30V
400
Cis s
6
4
40V
200
100
50
C oss
Crs s
2
20
f = 1 MHz
V GS = 0 V
0
0
2
4
6
8
10
12
14
10
0.1
0.3
1
3
10
20
50
30
Q g , GATE CHARGE (nC)
Figure 7. Gate Charge Characteristics.
50
V DS , DRAIN TO SOURCE VOLTAGE (V)
Figure 8. Capacitance Characteristics.
N)
DS
LIM
100
1m
1 0 m
0m
10
3
1
R
(O
IT
10
s
s
s
us
40
30
SINGLE PULSE
R θ JA =135°C/W
T A = 25°C
T A = 25°C
0.3
0.1
0.03
V GS =10V
SINGLE PULSE
R θ JA = 135°C/W
A
1s
1 0 s
DC
20
10
0.01
0.1
0.2
0.5
1
2
5
10
20
50
100
0
0.001
0.01
0.1
1
10
100
300
V DS , DRAIN-SOURCE VOLTAGE (V)
Figure 9. Maximum Safe Operating Area .
1
SINGLE PULSE TIME (SEC)
Figure 10. Single Pulse Maximum Power
Dissipation.
0.5
D = 0.5
0.2
0.1
0.2
0.1
R θ JA (t) = r(t) * R θ JA
R θ JA = 135 °C/W
0.05
0.02
0.01
0.05
0.02
0.01
Single Pulse
P(pk)
t 1
t 2
0.005
0.002
0.001
T J - T A = P * R θ JA (t)
Duty Cycle, D = t 1 /t 2
0.0001
0.001
0.01
0.1
1
10
100
300
t 1 , TIME (sec)
Figure 11. Transient Thermal Response Curve.
Thermal characterization performed using the conditions described in Note 1c.
Transient thermal response will change depending on the circuit board design.
NDS9945 Rev.B
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