STMicroelectronics ISO808TR High Side, High Side Power Switch IC 36-Pin, PowerSO-36

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Förpackningsalternativ:
RS-artikelnummer:
261-5067
Tillv. art.nr:
ISO808TR
Tillverkare / varumärke:
STMicroelectronics
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Brand

STMicroelectronics

Power Switch Type

High Side

Power Switch Topology

High Side

Product Type

Power Switch IC

Switch On Resistance RdsOn

0.26Ω

Number of Outputs

8

Package Type

PowerSO-36

Maximum Supply Voltage

36V

Pin Count

36

Operating Current

1A

Standards/Approvals

RoHS

Automotive Standard

No

COO (Country of Origin):
MY

Galvanic isolated octal high-side power solid state relay for high inductive loads


The STMicroelectronics ISO808 and ISO808-1, are galvanic isolated 8-channel drivers featuring a low supply current. Each driver contains 2 independent galvanic isolated voltage domains (VCC and VDD for the Process and Control Logic stages, respectively). The ICs are intended for driving any kind of load with one side connected to ground.

Active channel current limitation (OVL) combined with thermal shutdown (OVT), independent for each channel, protects the device against overload.

Built-in thermal shutdown protects each channel from overtemperature and overload: each overheated channel automatically turns OFF after its junction temperature triggers the protection threshold (TJSD). The channel turns back ON if its junction temperature decreases lower than restart threshold (TJR).

An additional case temperature sensor protects the whole chip against overtemperature (OVC event): if the case temperature triggers the TCSD threshold then overloaded channels are turned OFF and restart only when case temperature decreased down to the reset threshold (TCR). Non overloaded channels continue to operate normally.

Other embedded functions are loss of ground protection, VCC and VDD UVLOs (with hysteresis), and watchdog.

An internal circuit provides an OR-wired not latched OVT that is reported on the common FAULT indicator pin. FAULT is an open drain, active low, fault indication pin.

The Synchronous Control Mode (by driving SYNC and LOAD pins independently) is used to reduce the jittering of the outputs and to drive at the same time the outputs of different devices.

Key features


  • VCC(AMR) = 45 V

  • Wide process side op. range VCC = 9.2 to 36 V

  • RDS(on) = 0.125 Ω per channel (TYP)

  • Fast demagnetization of inductive loads VDEMAG(TYP) = VCC - 54 V

  • Per channel process side op. current

    • ISO808 IOUT < 0.7 A

    ISO808-1 IOUT < 1 A

  • Low process and logic sides supply current

  • Under-voltage shut down with auto restart and hysteresis

  • Logic side 5 V and 3.3 V TTL/CMOS and MCU compatible I/Os

  • Common output enable/disable pin

  • Reset function for IC outputs disable

  • High common mode transient immunity

  • Short circuit protection on output channels

    • ISO808 ILIM(MIN) = 0.7 A

    ISO808 ILIM(MIN) = 1 A

  • Per-channel over-temperature protection with thermal independence of separate channels

  • Case over-temperature protection

  • Over-voltage protection (VCC clamping)

  • Loss of GND and VCC protections

  • Common fault open drain diagnostic

  • Designed to meet IEC 61000-4-2, IEC 61000- 4-4, IEC 61000-4-5 and IEC 61000-4-8

  • UL1577 and UL508 certified

  • PowerSO-36 Package

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