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BYG23T: Diotec's Avalanche Rated 1300V Bootstrap Diode

Discover our bootstrap diode BYG23T in SMA package, well suited for high-side floating gate driver circuits. The major challenge here is to select a robust device with respect to high voltage peaks during low side MOSFET or IGBT turn-off, as well as forward surge currents during re-charging of the storage capacitor. High frequency operation is state-of-the-art in these applications.

The BYG23T features an avalanche rating of 5mJ with breakdown voltage of 1350V and a very low reverse recovery time of 75ns. Repetitive peak forward current rating is 3A, and average forward current 1A.

Various half-bridge gate driver circuits are currently available in the market with integrated bootstrap diodes. The total power dissipation of such gate driver IC is the combination of gate driver losses and the internal bootstrap diode losses. The difficulty with this circuit is the operation at higher frequencies and load capacitance applications, where the power losses in the internal bootstrap diode dominates the overall power dissipation.

An external bootstrap diode, even if in parallel with the internal one, can significantly overcome the problem of excessive power losses in the driver IC. A stand-alone operation is of course possible as well.

Diotec at electronica India 2019

Diotec Semiconductor will again participate at electronica India 2019. The international trade fair is Indias leading platform for electronic components, systems, applications and solutions. It is taking place from September 25 to 27 at Greater Noida exhibition hall in Delhi.

The main topic of our booth will be our 3rd Generation Schottky Technology. Diotec's -3G Schottky Technology encompasses high power handling capability at small package outlines and offers state-of-the-art performance in the field of Schottky rectifiers. Stop by for a visit in hall 10 at booth EF15 if you want to learn more about our -3G Schottky Technology.

You can also watch a live demo at our booth, where we show a low device count precision power supply for micro controllers and sensors.

We are looking forward to your visit in hall 10 at our booth EF15!

SBT1045-3G - An Excellent Choice for Output Rectification in LED Drivers

Flyer 3G Schottky Consumer

We are pleased to introduce the SBT1045-3G, the upcoming member of our 3rd generation Schottky family. It comes in a TO-220AC power package and features a repetitive peak reverse voltage of 45V with 10A of average forward current rating. It offers lower power losses both in forward and reverse and is dedicated for a high level of efficiency.

Typical applications include output rectification in DC/DC converters and power supplies, polarity protection and free-wheeling diodes. The SBT1045-3G is an excellent option for output rectification in LED drivers.

Here the main parameters of this part under typical application conditions of an output rectifier:

Vf typ 390mV at If = 10A and Tj = 125°C
Ir typ 10mA at Vr = 5V and Tj = 125°C

First samples are available from September; they can be ordered already now at our orderconfirmation.

New Series about 3rd Generation Schottky Technology Part 5/5: Products for Lighting Applications

Flyer 3G Schottky Consumer

Diotec's -3G Schottky Technology encompasses high power handling capability at small package outlines. It offers state-of-the-art performance in the field of Schottky Rectifiers. Reduced forward voltage Vf and low reverse leakage current Ir are two common features of all these new devices.

Lighting is an essential element in our present world. It plays a decisive role in our daily lives, right from low power indoor lighting at home, to mid and high power outdoor lighting, industrial and horticulture lighting systems. Lighting accounts for about 15% of global electricity consumption.

A new era came with the light emitting diodes (LED). They consume little electricity, are long lasting, versatile and contain no toxic substances. LEDs are the future for lighting. Other intelligent technologies such as digital lighting control systems and smart lighting solutions are emerging in the market, further ensuring an increase in efficiency, greater energy savings and thus lower the carbon emissions.

By choosing the best suited semiconductor components in the design, power losses decrease and energy savings can be pushed even further. Hence, the selection of the right components can also boost-up the overall performance.
We at Diotec Semiconductor focus on supplying high quality products like the 3rd generation Schottky diodes. Their features like low to very low Vf and lower leakage currents make them well suited for a variety of lighting applications like LED lamp drivers, lighting controls, polarity protection of automotive lighting systems and many more.

Our actual -3G Schottky portfolio includes rectifier diodes with (very) low forward voltage drop, reverse voltages from 20V to 45V and forward current ratings from 0.5A to 30A. A new flyer shows dedicated Schottky diodes for lighting applications. If you prefer reading a hardcopy, you can order it here.

Main Features of -3G Schottky Technology:

- Very Low Forward Voltage
- Low Reverse Current
- High Power Capability
- High ESD Robustness
- Energy Savings
- Available with AEC-Q101 grading


-3G Schottky devices are also available for Industrial, Consumer, Energy and Mobility Applications. You can download our flyer here on our website.

 

Our Parts are Compliant with new REACH Candidate List

ESD protection

Like every half-year, ECHA has published on 16 July 2019 the new candidate list, containing now in total 201 substances of very high concern (SVHC). None of the new SVHC are contained in our prodcuts. Those substances which are declarable, such as the lead used in the high melting type solder alloy and fully exempted by RoHS, can be found in the material data sheets (MDS) on our website.

Download here our official REACH Certificate .

And check as an example the lead content of the SBT1045-3G - click on MDS!

 

 

 

SK34SMA L217: Perfect output rectifier for wireless charging of battery powered devices

3G Schottky Rectifier for wireless charging

Diotec proudly launches one such device: a 3rd generation Schottky device, which offers not only lower (very) forward voltage drop and therefore lower forward losses but also lower leakage currents, which allows higher standby durations.

The new SK34SMA L217 15MQ040N is a SMD Schottky diode where Vf and Ir were perfectly matched towards the customer's needs. Its a bit of a bulky part number but this can be explained as follows.

The challenge in this case was to build an output rectifier for wireless charging of a battery powered device. During stand-by mode, the reverse leakage Ir must be very low in order to avoid too fast discharging of the battery. In charging mode, the forward voltage Vf must be reduced to provide high efficieny and fast charging times.

Here the typical parameters requested for the output rectifier of the wireless charging system:

Vf typ 0.35 V @ 2 A / 125°C
Ir typ 8 µA @ 4 V / 50°C

Based on our flagship in SMA, the 3A/40V SK34SMA-3G, we built the special version L217. Our customer, a leading manufacturer of battery powered consumer devices, confirmed that this customized device outperforms impressively the parameters of the industry standard 15MQ040N.

New Series about 3rd Generation Schottky Technology Part 4/5: Products for Consumer Applications

Flyer 3G Schottky Consumer

Diotec's -3G Schottky Technology encompasses high power handling capability at small package outlines. It offers state-of-the-art performance in the field of Schottky Rectifiers. Reduced forward voltage Vf and low reverse leakage current Ir are two common features of all these new devices.

Over the past decades, there has been a large increase in the usage of consumer electronics in households, which consumes an enormous amount of energy. These electrical appliances consume energy, not only when they are active, but also when they are left on standby mode.

The industry prioritizes in developing energy saving products, not only to help the environment but also to reduce their financial costs. It is a fact that the semiconductor technology and the components are the decisive factor in producing energy efficient products.

For many years, we at Diotec have been developing new technological solutions. We have been delivering many energy efficient components intended for energy savings and high reliability systems.

Our actual -3G Schottky portfolio includes Rectifier Diodes with (Very) Low Forward Voltage Drop, reverse voltages from 20V to 45V and forward current ratings from 0.5A to 30A. A new flyer shows dedicated Schottky Diodes for Consumer Applications. If you prefer reading a hardcopy, you can order it here.

Main Features of -3G Schottky Technology:

- Very Low Forward Voltage
- Low Reverse Current
- High Power Capability
- High ESD Robustness
- Energy Savings
- Available with AEC-Q101 grading

In our August newsletter we will introduce -3G Schottky devices for Lighting Applications.

ESD Protection: NUP2105L and ESD3BxxWS withstand up to 30kV

ESD protection

Our new NUP2105L follows the industry standard in SOT-23 package and offers two bidirectional diodes with 24V stand-off voltage. They withstand up to 30kV according to JESD-A114D (HBM) and feature a very low junction capacitance of only 30pF. It makes them thus ideally suited for I/O port and CAN bus protection.

The ESD3BxxWS is an entire series of bidirectional ESD protection diodes in the small SOD-323 package. Their stand-off voltage ranges from 5.0V to 24V at 350W of peak pulse power. ESD immunity is 30kV according to IEC 61000-4-2 (air discharge). Applications are any kind of interface and data line protection.

New Series about 3rd Generation Schottky Rectifier: Part 3/5 - Products for Energy Applications

Diotec's -3G Schottky Technology encompasses high power handling capability at small package outlines. It offers state-of-the-art performance in the field of Schottky Rectifier. Energy savings are one common feature of all these new devices.

The new axial lead diode SBX3040-3G shows impressively what that means. It features a very low forward voltage and a low leakage current, and is thus perfectly suited for solar bypass diode applications but also reverse polarity protection.

Here some typical, application oriented parameters proofing its superior performance:

Vf < 0.39 V @ 15 A / 75°C
Ir < 220 µA @ 12 V / 75°C

Important for Solar Bypass diodes is the so-called thermal runaway test. The -3G Schottky technology offers low leakage currents which adresses exactly that issue. The SBX3040-3G can be used in solar junction boxes for up to 15A with no thermal runaway. Its very low forward voltage drop Vf makes this part further ideally suited for reverse polarity protection in battery powered systems or automotive applications. Power losses can be reduced and thus energy saved.

Our actual -3G Schottky portfolio includes Rectifier Diodes with (Very) Low Forward Voltage Drop, reverse voltages from 20V to 45V and forward current ratings from 0.5A to 30A. A new flyer shows dedicated Schottky Diodes for Mobility Applications.

Main Features of -3G Schottky Technology:

- Very Low Forward Voltage
- Low Reverse Current
- High Power Dissipation
- High ESD Robustness
- Energy Savings
- Available with AEC-Q101 grading

In our July newsletter we will introduce -3G Schottky devices for Consumer Applications.

 

Shorter Delivery Times

We improved several processes in our production and our supply chain. Thus, we can offer you shorter delivery times for various products:

- S1M-AQ 1A/1000V in SMA / AEC-Q101 qualified | New Delivery Time: 6 Weeks

- SM4007 1A/1000V in Melf | New Delivery Time: 4 Weeks

- SGL1-40 1A/40V Schottky in Mini Melf | New Delivery Time: 2 Weeks

- S380 0.8A/800V bridge in MiniDIL | New Delivery Time: 4 Weeks

- Z1SMA24 1W/24V Zener Diode in SMA | New Delivery Time: 6 Weeks

- BC817K-16 Low Rth Transistor in SOT-23 | New Delivery Time: 4 Weeks

If you have any further questions or need more information on shorter delivery times for other products, our sales team is happy to assist you. Direct orders can be placed at orderconfirmation@diotec.com.