Application information

STGIPN3H60AT

14/19

DocID026945 Rev 1

4.1

Recommendations

•

Input signals HIN, LIN are active-high logic. A 500 k

Ω (typ.) pull-down resistor is built-in

for each input. To prevent input signal oscillation, the wiring of each input should be as

short as possible and the use of RC filters (R1, C1) on each input signal is suggested.

The filters should be done with a time constant of about 100ns and must be placed as

close as possible to the IPM input pins.

•

The bypass capacitor Cvcc (aluminum or tantalum) is recommended to reduce the

transient circuit demand on the power supply. In addition, a decoupling capacitor C2

(from 100 to 220 nF, ceramic with low ESR) is suggested, to reduce high frequency

switching noise distributed on the power supply lines. It must be placed as close as

possible to each Vcc pin and in parallel to the bypass capacitor.

•

The use of RC filter (RSF, CSF) for current monitoring is recommended to improve

noise immunity. The filter must be placed as close as possible to the microcontroller or

to the Op-amp.

•

The decoupling capacitor C3 (from 100 to 220 nF, ceramic with low ESR), in parallel to

each Cboot, is recommended in order to filter high frequency disturbances.

•

The Zener diodes DZ1 between the Vcc pins and GND and in parallel to each Cboot is

suggested in order to prevent overvoltage.

•

The decoupling capacitor C4 (from 100 to 220 nF, ceramic with low ESR) in parallel to

the electrolytic capacitor Cvdc is recommended, in order to prevent surge destruction.

Both capacitors C4 and Cvdc should be placed as close as possible to the IPM (C4 has

priority over Cvdc).

•

By integrating an application-specific type HVIC inside the module, direct coupling to

the MCU terminals without an opto-coupler is possible.

•

Low inductance shunt resistors should be used for phase leg current sensing

•

In order to avoid malfunctions, the wiring between N pins, the shunt resistor and

PWR_GND should be as short as possible.

•

It is recommended to connect SGN_GND to PWR_GND at only one point (near the

terminal of shunt resistor), in order to avoid any malfunction due to power ground

fluctuation.

Note:

For further details refer to AN4043.

Table 12. Recommended operating conditions

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Supply voltage

Applied between P-Nu, Nv,

Nw

300

500

V

Control supply voltage

GND

12

15

17

V

High side bias voltage

11.5

17

V

Blanking time to prevent

Arm-short

For each input signal

1.5

µs

PWM input signal

25

kHz

Case operation temperature

100

°C