FSB50450AS datasheet(6/10 Pages) FAIRCHILD

Nome de Peças	FSB50450AS

Descrição Electrónicos	FSB50450AS Motion SPM짰 5 Series

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Fabricante Electrônico	FAIRCHILD [Fairchild Semiconductor]

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FSB50450AS Rev. C4

Figure 3. Recommended MCU Interface and Bootstrap Circuit with Parameters

3rd Notes:

1. Parameters for bootstrap 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 Motion SPM 5 product and MCU (Indicated as Dotted Lines) may be used to prevent improper signal due to surge-noise.

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-frequency characteristics to absorb high-frequency ripple-current.

Figure 4. Case Temperature Measurement

3rd Notes:

4. Attach the thermocouple on top of the heat-sink of SPM 5 package (between SPM 5 package and heatsink if applied) to get the correct temperature measurement.

Figure 5. Temperature Profile of VTS (Typical)

HIN

LIN

Output

Note

0

Z

Both FRFET Off

0

1

0

Low side FRFET On

10

VDC

High side FRFET On

1

Forbidden

Shoot through

Open

Z

Same as (0,0)

COM

VCC

LIN

HIN

VB

HO

VS

LO

P

N

R

3

Inverter

Output

C

3

C

1

+15 V

10

F

These values depend on PWM control algorithm

* Example of Bootstrap Paramters

:

C

1= C2 = 1 F Ceramic Capacitor

R

5

C

5

V

DC

C

2

VTS

* Example Circuit : V phase

C

4

V

One Leg Diagram of Motion SPM

® 5 Product

20

40

60

80

100

120

140

160

0.5

1.0

1.5

2.0

2.5

3.0

3.5

THVIC [

oC]

Nº de peça semelhante - FSB50450AS

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ON Semiconductor	FSB50450AS	882Kb / 14P	Motion SPM 5 Series July 2016 Rev. 1.7

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