4

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FSB50450S Rev. A

Recommended Operating Conditions

Note

(2) Parameters for bootsrap circuit elements are dependent on PWM algorithm. For 15 kHz of switching frequency, typical example of parameters is shown above.

dard CMOS or LSTTL outptus.

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.

Supply Voltage

Applied between P and N

-

300

400

V

Control Supply Voltage

13.5

15

16.5

V

High-side Bias Voltage

13.5

15

16.5

V

Input ON Threshold Voltage

Applied between IN and COM

3.0

-

V

Input OFF Threshold Voltage

0

-

0.6

V

Blanking Time for Preventing

Arm-short

1.0

-

-

µs

PWM Switching Frequency

-

15

-

kHz

COM

VCC

LIN

H N

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

R

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 Tem perature(Tc)

Detecting Point

14.50mm

3.80mm

MOSFET

Case Tem perature(Tc)

Detecting Point

14.50mm

3.80mm

MOSFET