STK531U394A-E

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9

Recommended Operating Condition

Item

Symbol

Conditions

MIN

TYP

MAX

Unit

Supply voltage

VCC

P to N

0

280

450

V

Pre-driver supply voltage

VD1,2,3

VB1 to U, VB2 to V, VB3 to W

12.5

15

17.5

V

VD4

VDD to VSS

*1

13.5

15

16.5

PWM frequency

fPWM

1

-

20

kHz

Dead time

DT

Turn-off to Turn-on

2

-

-

μs

Allowable input pulse width

PWIN

ON and OFF

1

-

-

μs

Tightening torque

‘M3’ type screw

0.6

-

0.9

Nm

*1 : Pre-drive power supply (VD4=15±1.5V) must have the capacity of Io=20mA (DC), 0.5A (Peak).

Usage Precaution

1. This IPM includes bootstrap diode and resistors. Therefore, by adding a capacitor “CB”, a high side drive voltage is generated; each

phase requires an individual bootstrap capacitor. The recommended value of CB is in the range of 1 to 47μF, however this value needs

to be verified prior to production. If selecting the capacitance more than 47μF (±20%), connect a resistor (about 20Ω) in series between

each 3-phase upper side power supply terminals (VB1, 2, 3) and each bootstrap capacitor. When not using the bootstrap circuit, each

upper side pre-drive power supply requires an external independent power supply.

2. It is essential that wirning length between terminals in the snubber circuit be kept as short as possible to reduce the effect of surge

voltages. Recommended value of “CS” is in the range of 0.1 to 10μF.

3. “ISO” (pin24) is terminal for current monitor. High current may flow into that course when short-circuiting the “ISO” terminal and “VSS”

terminal. Please do not connect them.

4. “FAULT” (pin23) is open DRAIN output terminal (Active Low). Pull up resistor is recommended more than 6.8kΩ.

5. Inside the IPM, a thermistor used as the temperature monitor for internal subatrate is connected between VSS terminal and TH terminal

therefore, an external pull up resistor connected between the TH terminal and an external power supply should be used. The

temperature monitor example application is as follows, please refer the Fig.10, and Fig.11 below.

6. Pull down resistor of 33kΩ is provided internally at the signal input terminals. An external resistor of 2.2k to 3.3kΩ should be added to

reduce the influence of external wiring noise.

7. The over current protection feature is not intended to protect in exceptional fault condition. An external fuse is recommended for safety.

8. The level of the over current protection might be changed from IPM design value when “ISD” terminal and “VSS” terminal are shorted at

external. Be confirm with actual application(“N” terminal and “VSS” terminal are shorted at internal).

9. The level of the over current protection is adjustable with the external resistor “RSD” between “ISD” terminal and “VSS” terminal.

10. When input pulse width is less than 1.0μs, an output may not react to the pulse. (Both ON signal and OFF signal)

This data shows the example of the application circuit, does not guarantee a design as the mass production set.

Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended

Operating Ranges limits may affect device reliability.