UM0971 datasheet(13/45 Pages) STMICROELECTRONICS

部件名	UM0971

功能描述	STEVAL-IHM031V1 low voltage three-phase inverter demonstration board

PDF	45 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

13 / 45 page

UM0971

Board description

Doc ID 17701 Rev 1

13/45

is enabled to work with voltage rail up to 600 V. The logic inputs are CMOS/TTL compatible

for ease of interfacing with controlling devices. It features:

●

High voltage rail up to 600 V

●

dV/dt immunity ±50 V/nsec in full temperature range

●

Driver current capability:

–

400 mA source

–

650 mA sink

●

Switching times 50/30 nsec rise/fall with 1 nF load

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CMOS/TTL Schmitt trigger inputs with hysteresis and pull down

●

Internal bootstrap diode

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Outputs in phase with inputs

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Interlocking function

Figure 6.

Block diagram

Figure 7 shows, in more detail, the circuit utilized for the turn-on and turn-off of the power

MOSFETs.

Figure 7.

Gate driving network

As can be deduced from Figure 7, during turn-on, power MOSFET gate capacitances are

charged through R1 and R4 (220

Ω) resistors, while turn-off is fastened by the presence of

diode D1 and D2.

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