Toshiba Releases SiC MOSFET Gate Driver Photocoupler with Enhanced Security Features for Industrial Gear

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KAWASAKI, Japan — Toshiba Digital Units & Storage Company (“Toshiba”) has launched a gate driver photocoupler, “ TLP5814H,” with an output of +6.8A/-4.8A, in a small measurement SO8L package deal, that comes with an lively Miller clamp operate for driving silicon carbide (SiC) MOSFETs. Quantity shipments begin at present.

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In circuits corresponding to inverters, the place MOSFETs or IGBTs are utilized in collection, gate voltage could be generated by a Miller present^[1] when the decrease arm^[2] is turned off, inflicting malfunctions corresponding to quick circuits within the higher and decrease arms^[3]. A generally used safety operate to stop that is the appliance of a damaging voltage to the gate when it’s turned off.

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For some SiC MOSFETs, which generally function larger voltage, decrease on-resistance and quicker switching traits than silicon (Si) MOSFETs, ample damaging voltage can’t be utilized between the gate and supply. On this case, an lively Miller clamp circuit can be utilized to circulate the Miller present from the gate to floor, stopping the quick circuiting with out the necessity to apply the damaging voltage. Nonetheless, there are cost-cutting designs that scale back the damaging voltage utilized to the gate when the IGBTs are turned off, and in these instances, gate drivers with a built-in lively Miller clamp are an possibility for consideration.

The brand new product has a built-in lively Miller clamp circuit, so there isn’t any want for a further energy provide for damaging voltage and exterior lively Miller clamp circuits. This supplies a security operate for the system and in addition promotes system miniaturization by lowering the variety of exterior circuits. The lively Miller clamp circuit has a channel resistance of 0.69Ω (typ.) and a peak clamp sinking present ranking of 6.8A, making it appropriate as a gate driver for SiC MOSFETs, that are extremely delicate to modifications in gate voltage.

TLP5814H has an working temperature ranking of -40 to 125°C, achieved by enhancing the optical output of the infrared emitting diode on the enter aspect and optimizing the design of the picture detector units (photodiode arrays) to enhance optical coupling effectivity. This makes it appropriate for industrial tools that require strict thermal administration, corresponding to photovoltaic (PV) inverters and uninterruptible energy provides (UPSs). Its propagation delay time and propagation delay skew are additionally specified within the working temperature ranking vary. Its package deal, a small measurement SO8L, 5.85 × 10 × 2.1mm (typ.), helps enhance the pliability of components structure on a system board. As well as, it includes a minimal creepage distance of 8.0mm, permitting it for use for purposes requiring excessive insulation efficiency.

Toshiba will proceed to develop photocoupler merchandise that contribute to enhancing the protection operate of commercial tools.

Notes:
[1] Miller present: Electrical present generated when excessive dv/dt voltage is utilized to capacitance between the drain and gate of a MOSFET or between the collector and gate of an IGBT.
[2] The decrease arm is the half that pulls present from the load of a circuit that makes use of energy units, corresponding to inverters in collection to the damaging energy provide (or floor). The higher arm is the half that provides present from the facility provide to the load.
[3] Quick circuited within the higher and decrease arms: A phenomenon wherein the higher and decrease energy units activate on the similar time on account of a malfunction attributable to noise or the malfunction of energy units on account of Miller present throughout switching.

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Purposes

Industrial tools

• PV inverters, UPSs, industrial inverters, AC servo drives, and so forth.

Options

• Constructed-in Lively Miller Clamp operate
• Peak output present ranking: I_OP= +6.8A/-4.8A
• Excessive working temperature ranking: T_opr (max)=125°C

Predominant Specs

Comply with the hyperlink beneath for extra on the brand new product.
TLP5814H

Comply with the hyperlink beneath for extra on Toshiba’s isolators/stable state relays.
Isolators/Strong State Relays

To examine availability of the brand new merchandise at on-line distributors, go to:
TLP5814H
Purchase On-line

* Firm names, product names, and repair names could also be emblems of their respective corporations.
* Info on this doc, together with product costs and specs, content material of companies and call data, is present on the date of the announcement however is topic to alter with out prior discover.

About Toshiba Digital Units & Storage Company

Toshiba Digital Units & Storage Company, a number one provider of superior semiconductor and storage options, attracts on over half a century of expertise and innovation to supply clients and enterprise companions excellent discrete semiconductors, system LSIs and HDD merchandise.

Its 19,400 workers around the globe share a dedication to maximise product worth, and to advertise shut collaboration with clients within the co-creation of worth and new markets. The corporate seems to be ahead to constructing and to contributing to a greater future for individuals in every single place.

Discover out extra at https://toshiba.semicon-storage.com/ap-en/high.html

View supply model on businesswire.com: https://www.businesswire.com/information/dwelling/20250305624253/en/

Contacts

Buyer Inquiries
Optoelectronic Machine Gross sales & Advertising and marketing Dept.
Tel: +81-44-548-2218
Contact Us

Media Inquiries:
Chiaki Nagasawa
Digital Advertising and marketing Dept.
Toshiba Digital Units & Storage Company
semicon-NR-mailbox@ml.toshiba.co.jp

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