Single Phase Smart Energy Meter Power Supply           

Technical Specifications:

  Part Details

  1. RAA2231814 (4 volt @ 2 Ampere & 6 volts @500mA).

  2. RAA2144014GP3#JA0 (SOT23, 40V In, 3.3V @ 150mA out, 3.6µA Quiescent current).

  3. EL817A Optical Isolator.

  4. ISL91107 High-efficiency buck-boost regulator with 3.6A.

  5. RAA214250 is a low drop-out linear voltage regulator that operates 2.5 to 20V.

Salient Features

  1. Protection features: Short-circuit protection (SCP).

  2. Overload protection (OLP), input under voltage.

  3. Lockout (Vin UV), input OVP, VCC overvoltage protection (Vcc OV), VCC under-voltage lockout.

  4. (Vcc UV) and Over-temperature protection.

  5. Flyback regulator with 900V 10Ω MOSFET.

  6. Valley switching to reduce switching losses.

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