ca3282as2 Intersil Corporation, ca3282as2 Datasheet - Page 8

• Manufacturer Part Number: ca3282as2
• Description: Octal Side Power Driver With Serial Control
• Manufacturer: Intersil Corporation

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.
1.0
0.5
0.0
FIGURE 6. CURRENT vs CASE (TAB) TEMPERATURE, ALL OUTPUTS ON WITH EQUAL CURRENT
12
10
8
6
4
2
0
50
r
THERMAL RESISTANCE,
DS(ON)
(0.625A EA. X 8 = 5A TOTAL CURRENT)
= 1
-40
MAX. ALL ON CURRENT LIMITED
-25
75
FIGURE 5. DISSIPATION DERATING CURVE
JC
= 3
0
o
CA3282 WITH NO HEAT SINK
(
C/W
JA
= 45
AMBIENT TEMPERATURE (
CASE TEMPERATURE (
o
CA3282
C/W)
25
8
100
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, T
Absolute Maximum Ratings as defined in the data sheet.
50
MAX
I
MAX
CA3282 WITH EXT.
6
(
o
o
JA
ALL ON DISSIPATION LIMITED
C/W HEAT SINK
=
C)
o
= 9
C)
-----------------------------------------------------
8
o
75
C/W)
JC
150 T
C
125
–
r
. Boundary conditions relate to the
DS ON
100
C
125
CA3282 WITH INFINITE
HEAT SINK
(
JC
= 3
o
C/W)
150
150