Photovoltaic-Output Photocoupler and MOSFET as Replacement for Mechanical Relay

Solid state relay with photovoltaic-output coupler, TLP3906, and MOSFET, TPH1R306PL. Describes design guidance of solid state relay circuit as replacement of mechanical relay.

HVAC application
Application circuit diagram

特性

  • Solid state relay acheives ""longer life"", ""higher reliability"", and ""more silence"" compared with mechanical relay
  • Photovoltaic coupler : TLP3906
  • MOSFET : TPH1R306PL

說明

  • Solid state relay circuit that phptovoltaic coupler drives power MOSFET directly.
  • Introduction of 5 A DC relay application example.
  • Design guidance of solid state relay as replacement of mechanical relay.

Design Documents

Materials for designers, such as an overview of circuit operation and explanations of design considerations. Please click on each tab to view the contents.

使用東芝項目/產品

器件型號 器件目錄 使用部位・數量 說明
Photocoupler (photovoltaic output) Driving MOSFET・1 Photocoupler (photovoltaic output), VOC=7 V / ISC=12 μA, 3750 Vrms, 4pin SO6
Power MOSFET (N-ch single 30V<VDSS≤60V) Current flow line・1 N-ch MOSFET, 60 V, 0.00134 Ω@10V, SOP Advance, U-MOSⅨ-H

Related Documents

We provide materials useful for designing and considering similar circuits, such as application notes for installed products. Please click on each tab to view the contents.

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