FSB50825B datasheet(8/14 Pages) ONSEMI

8 / 14 page

FSB50825B/FSB50825BS

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HIN

LIN

Output

Note

Both FRFET Off

Low side FRFET On

VDC

High side FRFET On

Forbidden

Shoot through

Open Open

Same as (0,0)

COM

VDD

LIN

HIN

Inverter

Output

+15 V

These values depend on PWM control algorithm

* Example of Bootstrap Paramters

1= C2 = 1 mF Ceramic Capacitor

VTS

* Example Circuit : V phase

One Leg Diagram of Motion SPM® 5 Product

Figure 3. Recommended MCU Interface and Bootstrap Circuit with Parameters

NOTE: 10. Parameters for bootstrap circuit elements are dependent on PWM algorithm. For 15 kHz of switching frequency, typical

example of parameters is shown above.

11. 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.

12. 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.

10 mF

Figure 4. Case Temperature Measurement

NOTE: 13. 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.

FSB50825B 数据表(PDF) 8 Page - ON Semiconductor

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