參數(shù)資料
型號: HUFA76504DK8T
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 功率晶體管
英文描述: 2.3A, 80V, 0.222 Ohm, Dual N-Channel, Logic Level UltraFET Power MOSFET
中文描述: 2500 mA, 80 V, 2 CHANNEL, N-CHANNEL, Si, SMALL SIGNAL, MOSFET, MS-012AA
文件頁數(shù): 8/13頁
文件大?。?/td> 313K
代理商: HUFA76504DK8T
2001 Fairchild Semiconductor Corporation
Rev. A, June 4, 2001
The transient thermal impedance (Z
θ
JA
) is also effected by
varied top copper board area. Figure 24 shows the effect of
copper pad area on single pulse transient thermal
impedance. Each trace represents a copper pad area in
square inches corresponding to the descending list in the
graph. Spice and SABER thermal models are provided for
each of the listed pad areas.
Copper pad area has no perceivable effect on transient
thermal impedance for pulse widths less than 100ms. For
pulse widths less than 100ms the transient thermal
impedance is determined by the die and package. Therefore,
CTHERM1 through CTHERM5 and RTHERM1 through
RTHERM5 remain constant for each of the thermal models. A
listing of the model component values is available in Table 1.
0
40
80
120
160
10
-1
10
0
10
1
10
2
10
3
FIGURE 24. THERMAL RESISTANCE vs MOUNTING PAD AREA
t, RECTANGULAR PULSE DURATION (s)
Z
θ
J
,
I
o
C
COPPER BOARD AREA - DESCENDING ORDER
0.020 in
0.140 in
2
0.257 in
2
0.380 in
2
0.493 in
2
HUFA76504DK8
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