Toshiba Releases SiC MOSFET Gate Driver Photocoupler with Enhanced Security Capabilities for Industrial Tools

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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 bundle, that comes with an energetic Miller clamp operate for driving silicon carbide (SiC) MOSFETs. Quantity shipments begin right now.

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

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For some SiC MOSFETs, which generally characteristic greater voltage, decrease on-resistance and sooner switching traits than silicon (Si) MOSFETs, enough destructive voltage can’t be utilized between the gate and supply. On this case, an energetic 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 destructive voltage. Nevertheless, there are cost-cutting designs that scale back the destructive voltage utilized to the gate when the IGBTs are turned off, and in these circumstances, gate drivers with a built-in energetic Miller clamp are an choice for consideration.

The brand new product has a built-in energetic Miller clamp circuit, so there isn’t a want for an extra energy provide for destructive voltage and exterior energetic 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 energetic Miller clamp circuit has a channel resistance of 0.69Ω (typ.) and a peak clamp sinking present score of 6.8A, making it appropriate as a gate driver for SiC MOSFETs, that are extremely delicate to adjustments in gate voltage.

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

Toshiba will proceed to develop photocoupler merchandise that contribute to enhancing the security operate of business 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 attracts present from the load of a circuit that makes use of energy units, similar to inverters in sequence to the destructive energy provide (or floor). The higher arm is the half that provides present from the ability provide to the load.
[3] Brief circuited within the higher and decrease arms: A phenomenon by which the higher and decrease energy units activate on the similar time as a consequence of a malfunction attributable to noise or the malfunction of energy units as a consequence of Miller present throughout switching.

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Functions

Industrial tools

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

Options

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

Predominant Specs

Observe the hyperlink under for extra on the brand new product.
TLP5814H

Observe the hyperlink under for extra on Toshiba’s isolators/stable state relays.
Isolators/Stable State Relays

To verify 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.
* Data on this doc, together with product costs and specs, content material of providers and get in touch with 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 staff all over the world share a willpower to maximise product worth, and to advertise shut collaboration with clients within the co-creation of worth and new markets. The corporate appears to be like ahead to constructing and to contributing to a greater future for individuals all over the place.

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

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

Contacts

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

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

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