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4500 V/1000 A New Press Pack IEGT That Contributes to Size Reduction and High Output for High-Voltage Converters

2024-04-24 | 반환
Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has launched a newly developed press pack IEGT[1] "ST1000GXH35" with ratings of 4500 V/1000 A for use in high-voltage converters such as DC power transmission systems and industrial motor controllers.

The new product ST1000GXH35 employs trench-type IEGT chips and high-speed diode chips.

The IEGT chips reduce collector-emitter saturation-voltage and improve shutdown tolerance, short-circuit tolerance, and high-temperature tolerance. Therefore, collector-emitter saturation-voltage (VCE(sat) ) [2] has been reduced by approximately 28 % from 3.00 V to 2.15 V (typical) compared with the existing product ST750GXH24.

The high-speed diode chips suppress voltage oscillation during reverse recovery and improve reverse recovery tolerance and high-temperature tolerance. The new product can be used at a higher turn-on speed than the existing product, therefore the turn-on switching loss (Eon) [3][4] has been reduced by approximately 34 % from 4.15 J to 2.75 J (typical).

Furthermore, the test voltage for shutdown tests and short-circuit tests has been enhanced to 3400 V[5] in response to applications requiring high voltage. In addition, the junction temperature rating has been increased from 125 °C to 150 °C (maximum) by improving the high-temperature tolerance of the diode.

ST1000GXH35 contributes to size reduction and high output for high-voltage converters such as DC power transmissions, static VAR compensators, and industrial motor controllers.

Notes:
[1] IEGT: Injection Enhanced Gate Transistor
[2] VCE(sat) conditions: VGE=15 V, IC=750 A, Tj=125 °C
[3] Eon condition of existing product ST750GXH24: VCC=2800 V, IC=750 A, RG(on)=10 Ω, LS≈300 nH, Tj=125 °C
[4] Eon condition of new product ST1000GXH35: VCC=2800 V, IC=750 A, RG(on)=5.6 Ω, LS≈300 nH, Tj=125 °C
[5] The shutdown test voltage of existing product ST750GXH24 is 2700 V, and the short-circuit test voltage is 3000 V.

Applications

>DC power transmissions
>Static VAR compensators
>Industrial motor controllers

Features

>Low collector-emitter saturation voltage and low turn-on switching loss
>Enhanced to test-voltage 3400 V for shutdown and short-circuit tests
>Maximum junction temperature rating: Tj(max)=150 °C

Internal Circuit


Application Circuit Examples




Note:
The application circuits shown in this document are provided for reference purposes only.
Thorough evaluation is required, especially at the mass-production design stage.
Providing these application circuit examples does not grant any license for industrial property rights.

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Source: http://www.avx.com