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FSB50450A Scheda tecnica(PDF) 6 Page - Fairchild Semiconductor

Il numero della parte FSB50450A
Spiegazioni elettronici  Smart Power Module (SPM짰)
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Produttore elettronici  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FSB50450A Scheda tecnica(HTML) 6 Page - Fairchild Semiconductor

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FSB50450A Rev. A
Note:
1. Parameters for bootsrap circuit elements are dependent on PWM algorithm. For 15 kHz of switching frequency, typical example of parameters is shown above.
2. RC coupling(R5 and C5) and C4 at each input of SPM
® and Micom (indicated as dotted lines) may be used to prevent improper signal due to surge noise. Signal input of SPM®
is compatible with standard CMOS or LSTTL outputs.
3. Bold lines should be short and thick in PCB pattern to have small stray inductance of circuit, which results in the reduction of surge voltage. Bypass capacitors such as C1, C2
and C3 should have good high-frequencycharacteristics to absorb high-frequency ripple current.
Figure 3. Recommended CPU Interface and Bootstrap Circuit with Parameters
Note:
Attach the thermocouple on top of the heatsink-side of SPM® (between SPM® and heatsink if applied) to get the correct temperature measurement.
Figure 4. Case Temperature Measurement
Figure 5. Temperature profile of Vts(typ.)
HIN
LIN
Output
Note
0
0
Z
Both FRFET Off
0
1
0
Low side FRFET On
1
0
VDC
High side FRFET On
1
1
Forbidden
Shoot through
Open
Open
Z
Same as (0,0)
COM
VCC
LIN
HIN
VB
HO
VS
LO
P
N
R
3
Inverter
Output
C
3
C
1
15V
Line
10mF
One Leg Diagram of SPM
These values depend on PWM
control algorithm
* Example of bootstrap paramters
:
C
1= C2 =1mF ceramic capacitor
R
5
C
5
V
DC
C
2
Vts
* Example circuit : V phase
C
4
V
20
40
60
80
100
120
140
160
0.5
1.0
1.5
2.0
2.5
3.0
3.5
THVIC [deg]


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