STMicroelectronics' galvanic-isolated 8-channel driver used to drive loads that have one side connected to ground

Image of STMicroelectronics' ISO8200BThe STMicroelectronics ISO8200B is a galvanic-isolated 8-channel driver featuring a very-low supply current. It contains two independent galvanic-isolated voltage domains (VCCfor the Power stage and VDDfor the Digital stage). Additional embedded functions are: loss of GND protection, undervoltage shutdown with hysteresis, and reset function for immediate power output shutdown.

The 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 limit threshold TCR, 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 not 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 over-temperature protection
  • Thermal independence of separate channels
  • Common output disable pin
  • Case over-temperature 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 outputs disable
  • ESD protection
  • IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5 and IEC 61000-4-8 compliant



ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
ISO8200B datasheet linkIC SMART PWR 8CH HISD 36POWERSOISO8200BIC SMART PWR 8CH HISD 36POWERSO0ISO8200B product page link

Evaluation Board

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
STEVAL-IFP015V2 product page link
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Published: 2014-05-21