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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 | Return

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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* Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.

Source: http://www.avx.com