CA3282 Просмотр технического описания (PDF) - Intersil
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CA3282 Datasheet PDF : 10 Pages
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CA3282
The number of output drivers ON and conducting (m) may
be from 1 to n. (i.e., For all 8 output drivers conducting, m = n
= 8.) Maximum temperature, dissipation and current ratings
must be observed. The drain current vs case temperature
may be plotted for any value of m from 1 to 8, provided drain
currents remain equal.
The curve of Figure 5 illustrates the boundary limits for tem-
perature and dissipation. Figure 6 shows the maximum cur-
rent for all 8 outputs ON with equal current plotted versus
Case Temperature, TC. Boundary conditions relate to the
Absolute Maximum Ratings as defined in the data sheet.
12
CA3282 WITH EXT.
CA3282 WITH INFINITE
10
6oC/W HEAT SINK
(θJA = 9oC/W)
HEAT SINK
(θJC = 3oC/W)
8
6
4
CA3282 WITH NO HEAT SINK
(θJA = 45oC/W)
2
0
-40 -25
0
25
50
75
AMBIENT TEMPERATURE (oC)
100
125
150
FIGURE 5. DISSIPATION DERATING CURVE
1.0
0.5
MAX. ALL ON CURRENT LIMITED
(0.625A EA. X 8 = 5A TOTAL CURRENT)
IMAX ALL ON DISSIPATION LIMITED
rDS(ON) = 1Ω
THERMAL RESISTANCE, θJC = 3oC/W
MAX = 8-----×-----θ----J--1-C--5---×0-----(–--r--D-T----SC---(---O----N----)---)
0.0
50
75
100
125
150
CASE TEMPERATURE (oC)
FIGURE 6. CURRENT vs CASE (TAB) TEMPERATURE, ALL OUTPUTS ON WITH EQUAL CURRENT
8
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