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Authorized Distributor

Siproin

Shanghai Siproin Microelectronics Co., Ltd. describes itself as a fabless integrated-circuit design company that also delivers system-level solutions. Its main products are industrial-grade dedicated processors, non-volatile memory and signal chain circuits. The manufacturer states it focuses on smart metering, industrial control, security and identification, and distributed energy, and says it holds ISO 9001:2015 quality system certification.

The product catalogue is organised into iMCU, memory, power management and driver ICs, communication and interface ICs, and signal chain ICs. Parts include an STT-MRAM memory family (SPI, QSPI and I2C), LDO regulators, DC-DC converters, RS485 transceivers, a digital isolator, sigma-delta and SAR ADCs, energy metering ICs and time-to-digital converters.

Infinite Electronics LLP is an authorized distributor of Siproin.

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Key Points
  • iMCU: PU32F407 with Cortex-M4 core, 512Kb flash, 256Kb SRAM, UART/SPI/I2C, 150MHz, QFN48 6x6, listed for -40 to 85 C.
  • STT-MRAM: 256Kb to 4Mb densities with SPI, QSPI or I2C; some parts listed to -40 to 125 C with retention of at least 10 years.
  • LDO regulators from 50mA to 1.5A; high-voltage types accept input up to 40V or 60V, and some mains-input types; quiescent current down to 0.5uA on the low-power parts.
  • DC-DC: buck converters with input up to 80V and 100V, boost converters, in SOT23 and ESOP8 type packages.
  • Interface ICs: RS485 transceivers (15kV HBM listed), an M-Bus transceiver, and a 4-channel digital isolator rated 5kVrms.
  • Signal chain: 16-bit and 24-bit sigma-delta ADCs, 16-bit SAR ADCs, single- and three-phase energy metering ICs, and TDC time-measurement ICs.
  • The manufacturer states it holds ISO 9001:2015 certification and recognition as a national high-tech enterprise.
Core Product Categories
  • iMCUMicrocontroller with HPLC-capable and general interfaces, aimed at metering and industrial use.
  • STT-MRAM MemoryNon-volatile memory in SPI, QSPI and I2C versions, 256Kb to 4Mb, SOP8 package.
  • LDO RegulatorsLow-dropout voltage regulators, low-power and high-voltage types up to 40V-60V input.
  • DC-DC ConvertersBuck and boost switching regulators with input ranges up to 100V.
  • Drivers and Touch ICsRelay, DC motor and H-bridge drivers, Darlington arrays, LCD driver and touch-key ICs.
  • Interface CircuitsRS485 and M-Bus transceivers plus a digital isolator.
  • ADCs and Metering ICsSigma-delta and SAR ADCs and electricity metering ICs for smart meters.
  • Time Measurement and Leakage ProtectionTDC time-measurement chips and special ICs for leakage-protection circuits.
Typical Applications
Smart electricity meters Industrial control and PLC communication Security and identification (RFID) Distributed energy Battery chargers and portable devices Motor and relay control Home appliances and toys (touch keys) Power supplies

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