Toshiba Launches Dual Polarity Input Photocouplers for PLCs

Supports both sink and source logic input to achieve reduction of bridge circuits

TOKYO — (BUSINESS WIRE) — March 29, 2013Toshiba Corporation (TOKYO:6502) today announced the launch of high-speed photocouplers for programmable logic controllers (PLCs) which work with both plus and minus LED currents.

Toshiba Dual Polarity Input Photocouplers for PLCs (Photo: Business Wire)

Toshiba Dual Polarity Input Photocouplers for PLCs (Photo: Business Wire)

PLCs accept either sink logic input, used mainly in Japan, or source logic input, used mainly outside Japan. With globalization, bridge circuits are increasingly employed upstream from photocouplers used as PLC input interfaces, in order to provide support for both sink and source logic. The new photocouplers, the buffer logic type "TLP2395" and the inverter logic type "TLP2398", support both sink and source logic by combining two LEDs in inverse parallel, thereby allowing omission of the bridge circuits. Since there are cases where a single board will contain multiple bridge circuits, employing the new photocouplers can support reductions in circuit size, power consumption and cost.

The operating power supply voltage range of the new products supports a wide range, between 3V and 20V, and high-temperature operation is possible with an operating ambient temperature up to 125°C. The photocouplers support a data transfer speed of 5Mbps. With their wide operating power supply voltage range and temperature range, a propagation delay time under 250ns, pulse width distortion under 80ns and propagation delay skew of 130ns are guaranteed. These features make the new products suitable for communication interfaces (RS232C, RS422, RS485, etc.) in industrial applications. A low input current drive (2.3mA) and low supply current (3mA) are also realized, contributing to energy efficiency.

Applications
Programmable logic controllers (PLC), Factory automation (FA) devices

Main Specifications
1. Operating temperature range: Topr = -40°C to 125°C
2. Operating power supply voltage range: VCC = 3 to 20V
3. Threshold input current: IFHL / IFLH = 2.3mA (max)
4. Supply current: ICC = 3mA
5. Propagation delay time: tpHL / tpLH = 250ns (max)
6. Pulse width distortion:│tpHL-tpLH│= 80ns (max)
7. Propagation delay skew: tpsk = 130ns (max)

*Follow this link for more on this product.
http://www.semicon.toshiba.co.jp/eng/product/opto/selection/topics/1268507_2411.html

Customer Inquiries:
Optoelectronic Device Sales & Marketing Department
Tel: +81-3-3457-3431

 
Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.
 

About Toshiba
Toshiba is a world-leading diversified manufacturer, solutions provider and marketer of advanced electronic and electrical products and systems. Toshiba Group brings innovation and imagination to a wide range of businesses: digital products, including LCD TVs, notebook PCs, retail solutions and MFPs; electronic devices, including semiconductors, storage products and materials; industrial and social infrastructure systems, including power generation systems, smart community solutions, medical systems and escalators & elevators; and home appliances.

Visit Toshiba's web site at www.toshiba.co.jp/index.htm



Contact:

Toshiba Corporation
Semiconductor & Storage Products Company
Koji Takahata, +81-3-3457-3405
Email Contact




Review Article Be the first to review this article
HP

Autodesk - DelCAM

Featured Video
Jobs
CAD Systems Administrator for KLA-Tencor at Milpitas, CA
Principal Research Mechatronics Engineer for Verb Surgical at Mountain View, CA
Senior Mechanical Engineer for Verb Surgical at Mountain View, CA
Lead Geospatial Analyst for Alion at McLean, VA
Industrial Designer Intern – Spring 2017 for Nvidia at Santa Clara, CA
Upcoming Events
SOLIDWORKS 2017 Launch Event – Walsall at Village Hotel Club, Walsall, WS2 8TJ Walsall United Kingdom - Mar 30, 2017
PI APPAREL Hong Kong 2017 at SHANGRI-LA KOWLOON 64 Mody Road Tsim Sha Tsui East Kowloon Hong Kong - Apr 5 - 6, 2017
SOLIDWORKS intro and hands on session – Slough at Baylis House, Slough, Berkshire, SL1 3PB Slough United Kingdom - Apr 7, 2017
Engineer 3D! Training + Technology Conference at Hyatt Regency Milwaukee 333 West Kilbourn Avenue Milwaukee WI - Apr 25 - 26, 2017
MasterCAM



Internet Business Systems © 2017 Internet Business Systems, Inc.
595 Millich Dr., Suite 216, Campbell, CA 95008
+1 (408)-337-6870 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering EDACafe - Electronic Design Automation GISCafe - Geographical Information Services TechJobsCafe - Technical Jobs and Resumes ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy Advertise