08/08/2008 • Automation

New Intelligent Power Modules: ‘L1-Series’ from Mitsubishi Electric

Mitsubishi Electric is introducing its new Intelligent Power Module (IPM) of the L1-Series featuring high-speed, low-loss IGBT chips with full gate CSTBT™ (Carrier-Stored Trench Gate Bipolar Transistor). In addition to the mechanical compatibility with existing L-Series IPMs, L1-Series family covers an additional small package with improved performance.

The active plugging cell in Full-Gate-CSTBT-Structure of L1-Series IPM offers significant improvement in VCE(sat) (L-Series IPM: VCE(sat) of 1.9V, L1-Series IPM: 1.75V (@ Tj = 125°C) by keeping the Eoff almost at the same level. Furthermore, the total switching losses in L1-Series IPMs are reduced by 15% as compared to L-Series IPMs at comparable conditions.

The new L1-Series, which is designed for optimized switching and conduction losses with good EMI performance, is suited for switching frequencies up to 20kHz.

Product Line-up:
The new L1-Series family is available for voltage ratings of 600V and 1200V in four different packages. The new smallest package with dimensions of 90mm x 50mm covers 50A & 25A at 600V, 1200V respectively. Type A, B packages incorporate the range of 50A, 75A, 100A & 150A at 600V as well 25A, 50A, 75A at 1200V. Type A (131mm x 66.75mm) and Type B (120mm x 55mm) packages are available with screw or pin terminals respectively.

The L1-Series IPMs in Type C package (135mm x 110mm) covers higher current range of 200/300A at 600V and 100/150A at 1200V. The L1-Series’s small foot size with small package inductance results into light weight and low cost IPM module.

Integrated Protection
By highly-sophisticated integrated self protection features of the L-Series to the L1-Series results in excellent protection of the IPMs against over temperature, short circuits and under voltage supply conditions. By using on-chip temperature and current sensor, the accurate and reliable protection is achieved. In the fault condition fault output signal alerts the controller one of the above protection is activated.

Market & Availability
The production of the new L1-Series will start in the second quarter of 2008 and will attract different customers from Servo, air-conditioning and standard motor control fields.
 

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