参数资料
型号: STDH90
英文描述: Leaded Cartridge Fuse; Current Rating:62.5mA; Voltage Rating:250V; Fuse Terminals:Axial Lead; Fuse Type:Time Delay; Voltage Rating:250V; Body Material:Ceramic; Diameter:6.985mm; Fuse Size/Group:1/4 x 1-1/4 " RoHS Compliant: Yes
中文描述: STDH90 0.35微米STDH90图书馆|数据资料
文件页数: 25/122页
文件大小: 277K
代理商: STDH90
INTRODUCTION
1.13 VDD/VSS Rules and Guidelines
SEC ASIC
1-19
STDH90/MDL90
NVDDO
each_sso
= the number of VDDO pads required for each SSO group
NVSSO
each_sso
= the number of VSSO pads required for each SSO group
NB
vdd
= the number of buffers per VDD power pad with 1nH lead
inductance
NB
vss
= the number of buffers per VSS ground pad with 1nH lead
inductance
L
lead
= lead frame inductance of package
(Refer to 1.10 Package Capability by Lead Count)
D
sso_mode
= D
L_mode
x D
P_mode
x D
V_mode
x D
T_mode
x D
C_mode
D
L_mode
: Lead inductance derating factor
D
P_mode
: Process derating factor
D
V_mode
: Voltage derating factor
D
T_mode
: Temperature derating factor
D
C_mode
: C
load
derating factor
(mode is either vdd or vss. Refer to Table 1.4)
Table 1-4. Derating Equation
Item
Mode
D
L_vdd
Equation
Range
Package
Lead
0.0052 * Lpg + 0.9794
-0.0052 * Lpg + 1.0825
-0.0094 * Lpg + 1.0377
0.0377 * Lpg + 0.5660
1
1.1134
1.2887
1
1.3208
1.5094
-0.2222 * voltage + 2.1556
-0.1778 * voltage + 2.9333
-0.2500 * voltage + 2.2812
-0.1250 * voltage + 1.6562
0.0008 * temp + 1.0000
0.0006 * temp + 1.0066
0.0045 * temp + 1.0000
0.0034 * temp + 1.0274
0.0155 * Cload + 0.5361
0.0180 * Cload + 0.4588
0.0255 * Cload + 0.2358
0.0142 * Cload + 0.5755
3nH
Lpg
10nH
10nH
<
Lpg
15nH
3nH
Lpg
10nH
10nH
<
Lpg
15nH
best
typical
worst
best
typical
worst
4.5
voltage
5.0
5.0
<
voltage
5.5
4.5
voltage
5.0
5.0
<
voltage
5.5
-40
temp
25
25
<
temp
125
-40
temp
25
25
<
temp
125
10pF
Cload
30pF
30pF
<
Cload
100pF
10pF
Cload
30pF
30pF
<
Cload
100pF
D
L_vss
Process
D
P_vdd
D
P_vss
Voltage
D
V_vdd
D
V_vdd
Temp.
D
T_vdd
D
T_vdd
Cload
D
C_vdd
D
C_vdd
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