Ultrafast medium current MOSFET/IGBT driver

Power Electronics / Power Management

9 May 2001 Power Electronics / Power Management

Ixys has introduced the IXDD404, a new CMOS high-speed dual MOSFET/IGBT Driver IC. It has two identical drivers that can each deliver 4 A peak into a highly capacitive load. This makes it suited for medium current, discrete MOSFETs and IGBTs.

This driver chip can simplify design of driver circuits for MOSFETs/IGBTs in push-pull, half-bridge and full bridge topologies, says the company.

The driver IC features tri-state outputs. With the ENABLE pin high, the output voltage swings in response to the signal. Once the ENABLE pin goes low, the output goes into a high impedance state. This allows an auxiliary circuit to slowly turn-off the MOSFET or IGBT to protect it from LxdI/dt generated voltage transients. This problem is particularly severe for many design engineers working with high voltage circuits that use MOSFETs or high speed IGBTs, because there is little voltage guardband between the high bus voltage and device voltage ratings. The device has improved speed and drive capabilities - low rise and fall times in the order of 25 ns, which are matched. It operates over a very wide supply voltage range of 4,5 to 25 V. It can be driven by either TTL or CMOS input signals.

Each driver is fully immune to latch-up within the range of 0 to 4 A output current and switching frequencies up to a few megahertz are possible. The very low propagation delay time and a low output impedance make it extremely useful for driving medium current MOSFETs or medium current fast IGBTs. It is available in the standard 8-pin P-DIP.

Avnet Kopp, (011) 444 2333

sales@avnet.co.za

www.avnet.co.za

Share this article:

High-voltage contactors
RS South Africa Power Electronics / Power Management
TDK Corporation has announced two new additions to its high-voltage contactor portfolio for harsh environments: the HVC43MC with integrated mirror contact and the HVC45 with enhanced short-circuit current handling capability.

Read more...

Chokes rated at 36 A
RS South Africa Power Electronics / Power Management
TDK Corporation has launched the EPCOS SurfIND series, a new range of current-compensated ring core double chokes for high currents and surface mounting.

Read more...

RF arrestor provides robust protection
RFiber Solutions Power Electronics / Power Management
NexTek’s range of coaxial RF surge and lightning arrestors are designed and built to provide robust protection for any radio or coaxial RF transmission application.

Read more...

Wide-Bandgap Developer Forum 2025
Power Electronics / Power Management
To give designers the ultimate in design flexibility, the entire range of WBG power semiconductors will be provided including discretes, modules, and highly integrated solutions ranging from 40 V to 700 V for GaN and 400 V to 3,3 kV for SiC.

Read more...

Categories

Power Electronics / Power Management

Ultrafast medium current MOSFET/IGBT driver

Further reading:

Publications by Technews