Smart Meters

Smart meters (digital electricity meters with integrated communication modules) that are increasingly installed in the world, must provide accurate meter reading, provisions for different communication systems and a high level of circuit integration. Toshiba offers total solutions for smart metering that encompass ARM Cortex™-M cores, metrology MCUs, communication MCUs and discrete components.

Block Diagram

Smart Meter Block Diagram  Protection Diodes against ESD LDO DC-DC converter ICs Magnet Sensors (For unauthorized access prevention applications) Diodes Protection Diodes against ESD Diodes Small-Signal MOSFETs Photocouplers CMOS Logic Photorelays (For use at external output pins) Diodes MCU Power MOSFETs MCU

Product Introduction

  • MCUs for Measurement Unit
  • MCUs for Communication Unit
General-Purpose Linear ICs
General-Purpose Logic ICs
Optical Semiconductor Devices
  • Photocouplers (Signal isolation)
    • Transistor-output photocouplers with a data rate of up to a few kbps: TLP291/185/785
    • IC-output photocouplers with a data rate of up to 1 Mbps: TLP2309, TLP714
    • IC-output photocouplers with a data rate of up to 20 Mbps: TLP2366, TLP2766
  • Photorelays (For use at external output pins)
  • Digital-output Magnetic sensors
    • For unauthorized access prevention applications
      (door open-close monitors, magnetic detection for anti-electricity stealing)

* System and product names mentioned herein may be trademarks or registered trademarks of respective companies or organizations.

New products

New products of Smart Meters on one year in the past.

Fiber-Coupler (TOSLINKTM): TOTX1350(F), TOTX1350(V,F) / TORX1350(F), TORX1350(V,F)

The package photograph of fiber-coupler (TOSLIN(TM)): TOTX1350(F), TOTX1350(V,F) / TORX1350(F), TORX1350(V,F).

Fiber optic transmitting modules TOTX1350(F) / TOTX1350(V,F) and fiber optic receiving modules TORX1350(F) / TORX1350(V,F) can send / receive signals from DC to 10 Mb/s with low consumption current using all plastic fiber (APF) to a maximum distance of 100 m. (31 Mar, 2014)
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High-Current TLP241A Added to the TLP240 Series of Low-Cost Photorelays in DIP4 with Reinforced Insulation: TLP241A, TLP241AF

The package photograph of low-cost TLP240 photorelay series in DIP4 with reinforced insulation.

The high-current TLP241A has been added to the TLP240 series of low-cost photorelays in DIP4 with reinforced insulation. With a guaranteed maximum on-state current of 2A, it is particularly well suited for use in factory automation (FA), which requires the control of high current. (27 Sep, 2013)
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Low-Cost TLP240 Photorelay Series in DIP4 with Reinforced Insulation

The package photograph of Low-Cost TLP240 Photorelay Series in DIP4 with Reinforced Insulation.

The TLP240 Series is a variant of the conventional TLP220 Series. It is a low-cost version that provides just the LED trigger current and switching performance that customers need. (26 Apr, 2013)
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