IR introduces the WARP2 series of 600V benchmark devices (20A, 35A and 50A) in Non Punch Through (NPT) IGBT family, targeted towards high frequency SMPS applications. None of the competitors have the devices with such a small tail current, and a low turn off energy Eoff, that enables the WARP2 IGBTs to operate up to 150KHz, the range currently dominated by Power Mosfets. All WARP2 IGBTs are offered with co-pack HEXFRED diodes, which offer excellent reverse recovery characteristics, much better than the integral diodes in a Power MOSFET.
This 85um thin-wafer technology device uses a lightly doped collector that reduces the stored charge, lowering the turn-off energy loss and virtually eliminating the tail current, allowing these devices to be operated at higher frequencies. The improvement in switching performance, combined with the positive thermal coefficient characteristics and the lower Gate turn-on charge Qg, allows these devices to operate efficiently up to 150KHz, while offering excellent current sharing properties when operated in parallel, like power Mosfets. Unlike Power MOSFETs, the conduction losses of these IGBTs remain essentially flat.
These features make the WARP2 IGBTs the best competitive choice of device, in both PFC and ZVS applications, where price is as important as performance. With the introduction of the WARP2 IGBTs that can offer similar performance and efficiency as a power Mosfet, but at lower system cost, IR has proven once again that they are the market leaders in high frequency, high efficiency power semiconductor devices.
WARP2 IGBTs offer the desirable features of the lowest Turn-on Gate Charge and lower conduction losses (characteristic of a conductivity modulated device) and low turn-off losses due to minimal tail currents. These combined with the fast turn-on characteristic (like Mosfet) and the superior co-pak diode characteristics make the WARP2 IGBT devices the best choice of power switching devices, in SMPS applications in medium and large power SMPS designs for Telecom and Computer applications, where cost is as important as efficiency.
FEATURES AT A GLANCE
|NPT technology, positive temperature coefficient |
|Lower parasistic capacitances|
|Minimal tail current|
|HEXFRED ultra-fast soft recovery Co-Pack diode|
|Tighter distribution of parameters|
THE IR ADVANTAGE
|Parallel operation for higher current applications|
|Lower conduction losses and switching losses|
|Higher switching frequency up to 150kHz|
|Telecom and server SMPS|
|PFC and ZVS SMPS circuits|
|Uninterruptible power supplies|
|Consumer electronics power supplies|