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FSB50450 Datasheet(PDF) 4 Page - Fairchild Semiconductor

Part No. FSB50450
Description  Smart Power Module (SPM)
Download  8 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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FSB50450 Datasheet(HTML) 4 Page - Fairchild Semiconductor

   
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FSB50450 Rev. B
Recommended Operating Conditions
Note:
(1) It is recommended the bootstrap diode D1 to have soft and fast recovery characteristics with 600-V rating
(2) Parameters for bootsrap circuit elements are dependent on PWM algorithm. For 15 kHz of switching frequency, typical example of parameters is shown above.
(3) RC coupling(R5 and C5) at each input (indicated as dotted lines) may be used to prevent improper input signal due to surge noise. Signal input of SPM is compatible with stan-
dard CMOS or LSTTL outptus.
(4) 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-frequency characteristics to absorb high-frequency ripple current.
Figure 2. 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 3. Case Temperature Measurement
Symbol
Parameter
Conditions
Value
Units
Min.
Typ.
Max.
VPN
Supply Voltage
Applied between P and N
-
300
400
V
VCC
Control Supply Voltage
Applied between VCC and COM
13.5
15
16.5
V
VBS
High-side Bias Voltage
Applied between VB and VS
13.5
15
16.5
V
VIN(ON)
Input ON Threshold Voltage
Applied between IN and COM
3.0
VCC
V
VIN(OFF) Input OFF Threshold Voltage
0
0.6
V
tdead
Blanking Time for Preventing
Arm-short
VCC=VBS=13.5 ~ 16.5V, TJ ≤ 125°C
1.0
-
-
µs
fPWM
PWM Switching Frequency
TJ ≤ 125°C
-
15
-
kHz
TC
Case Temperature
TJ ≤ 125°C
-20
100
°C
COM
VCC
LIN
HIN
VB
HO
VS
LO
P
N
R
3
Inverter
Output
C
3
R
1
D
1
C
1
R
2
Micom
15-V Line
10
µF
One-Leg Diagram of SPM
These values depend on PWM
control algorithm
* Example of bootstrap paramters:
C
1 = C2 = 1µF ceramic capacitor,
R
1 = 56Ω, R2 = 20Ω
R
5
C
5
HIN
LIN
V
DC
0
0
0
1
1
0
1
1
Open
Open
Output
Z
0
V
DC
Forbidden
Z
Note
Both FRFET Off
Low-side FRFET On
High-side FRFET On
Shoot-through
Same as (0, 0)
C
2
Case Temperature (TC)
Detecting Point
14.50 mm
3.80 mm
MOSFET


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