STK433-290-E Ver la hoja de datos (PDF) - SANYO -> Panasonic
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STK433-290-E Datasheet PDF : 13 Pages
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STK433-290-E
Evaluation Board Characteristics
100
7
5
3
VCC=±33V
RL=6Ω
2 VG=30dB
10
7
3ch Drive
5
3
Rg=600Ω
2 Tc=25°C
THD - PO
1.0
7
Ch1 measurement
5
3
2
0.1
7
5
3
2
0.01
7
5
3
2
f=20kHz
f=1kHz
0.001
0.1 2 3 5 7 1.0 2 3 5 7 10 2 3 5 7 100 2 3
140
RL=6Ω
3ch Drive
120 VG=30dB
Output power, PO/ch - W
PO - VCC
Rg=600Ω
100 Tc=25°C
Ch1 measurement
80
60
40
TTHHDD==00.4.4%%(f(=f=1k2H0kz)Hz)
5 71000
ITF02732
20
0
10
20
30
40
50
Supply voltage, VCC - ±V
ITF02734
140
VCC=±33V
f=1kHz
120 RL=6Ω
VG=30dB
100 Rg=600Ω
Tc=25°C
80 3ch Drive
Pd - PO
60
40
20
0
0.1 2 3 5 7 1.0 2 3 5 7 10 2 3 5 7 100 2 3 5 71000
140
VCC=±33V
RL=6Ω
120 VG=30dB
Output power, PO/ch - W
PO - f
ITF02733
Rg=600Ω
Tc=25°C
100 3ch Drive
Ch1 measurement
THD=10%
80
THD=0.4%
60
40
20
0
10 2 3 5 7 100 2 3 5 7 1k 2 3 5 710k 2 3 5 7100k
Frequency, f - Hz
ITF02735
[Thermal Design Example for STK433-290-E (RL = 6Ω)]
The thermal resistance, θc-a, of the heat sink for total power dissipation, Pd, within the hybrid IC is determined as
follows.
Condition 1: The hybrid IC substrate temperature, Tc, must not exceed 125°C.
Pd × θc-a + Ta < 125°C ................................................................................................. (1)
Ta: Guaranteed ambient temperature for the end product
Condition 2: The junction temperature, Tj, of each power transistor must not exceed 150°C.
Pd × θc-a + Pd/N × θj-c + Ta < 150°C .......................................................................... (2)
N: Number of power transistors
θj-c: Thermal resistance per power transistor
However, the power dissipation, Pd, for the power transistors shall be allocated equally among the number of power
transistors.
The following inequalities result from solving equations (1) and (2) for θc-a.
θc-a < (125 − Ta)/Pd ...................................................................................................... (1)'
θc-a < (150 − Ta)/Pd − θj-c/N ........................................................................................ (2)'
Values that satisfy these two inequalities at the same time represent the required heat sink thermal resistance.
When the following specifications have been stipulated, the required heat sink thermal resistance can be determined
from formulas (1)' and (2)'.
• Supply voltage
• Load resistance
• Guaranteed ambient temperature
VCC
RL
Ta
No. A1630-8/13
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