Galvanic isolated octal high side smart power solid state relay

The ISO8200B is a galvanic isolated 8-channel driver featuring a very low supply current. It contains 2 independent galvanic isolated voltage domains (Vcc for the power stage and Vdd for the digital stage). Additional embedded functions are: loss of GND protection, undervoltage shutdown with hysteresis, and reset function for immediate power output shutdown.

IC is intended to drive any kind of load with one side connected to ground. Active channel current limitation combined with thermal shutdown, (independent for each channel), and automatic restart, protect the device against overload and short-circuit. In overload conditions, if junction temperature overtakes threshold, the channel involved is turned off and on again automatically after the IC temperature decreases below a reset threshold. If this condition causes case temperature to reach TCR limit threshold, the overloaded channel is turned off and it only restarts when case and junction temperature decrease down to the reset thresholds. Non-overloaded channels continue operating normally. An internal circuit provides an OR-wired non-latched common FAULT indicator signaling the channel OVT. The FAULT pin is an open-drain active low fault indication pin.

Key Features

  • Parallel input interface
  • Direct and synchronous control mode
  • High common mode transient immunity
  • Output current: 0.7 A per channel
  • Short-circuit protection
  • Channel overtemperature protection
  • Thermal independence of separate channels
  • Common output disable pin
  • Case overtemperature protection
  • Loss of GNDcc and Vcc protection
  • Undervoltage shutdown with auto-restart and hysteresis
  • Overvoltage protection (Vcc clamping)
  • Very low supply current
  • Common fault open-drain output
  • 5 V and 3.3 V TTL/CMOS compatible I/Os
  • Fast demagnetization of inductive loads
  • Reset function for IC output disable
  • ESD protection
  • IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5 and IEC 61000-4-8 compliant
  • UL1577 certification



Description Version Size
DS9322 DS9322: Galvanic isolated octal high-side smart power solid state-relay 10.0 1 MB
Description Version Size
AN4373 AN4373: Galvanically-isolated 8 channel high-side driver based on the ISO8200B and ISO8200BQ 2.0 2 MB


Description Version Size
Intelligent power switches (IPS) 11.2017 3 MB
Description Version Size
Brochure Power management guide 09.2017 4 MB


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型号 Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
ISO8200B PowerSO 36 Tube Active 3.507 1000 NEC EAR99 - MORE INFO No availability reported, please contact our Sales office
ISO8200BTR PowerSO 36 Tape And Reel Active 3.507 1000 NEC EAR99 - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors


型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ISO8200B ActivePowerSO 36IndustrialEcopack2
ISO8200BTR ActivePowerSO 36IndustrialEcopack2

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.