ISO808A

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STMicroelectronics

GALVANIC ISOLATED OCTAL HIGH-SIDE POWER SOLID STATE RELAY WITH SPI INTERFACE FOR HIGH INDUCTIVE LOADS

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ISO808A

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STMicroelectronics

GALVANIC ISOLATED OCTAL HIGH-SIDE POWER SOLID STATE RELAY WITH SPI INTERFACE FOR HIGH INDUCTIVE LOADS

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Description Specifications Series Pricing CAD Documents

Description

General part information

ISO808A Series

The ISO808A, ISO808A-1 (PowerSO-36) and ISO808AQ, ISO808AQ-1 (TFQFPN32) 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.

The Control Logic Stage features an 8-bit Output Status Register (where the MCU sets the ON/OFF status of the output channels in the Process Stage), daisy chaining is allowed. The two stages communicate through the galvanic isolation channel by an ST proprietary protocol.

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

Technical Specifications

Parameters and characteristics for this part

Specification	ISO808A

Current - Output (Max)	2.3 A
Fault Protection	Over Voltage, UVLO, Over Temperature, Current Limiting (Fixed), Over Load, Reverse Current
Features	Power Good, Status Flag, Auto Restart
Input Ratio	1
Input Type	Non-Inverting
Interface	SPI, On/Off
Mounting Type	Surface Mount
Number of Outputs	8
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	High Side
Output Ratio	8
Output Type	N-Channel
Package Length	0.433 in
Package Name	PowerSO-36, Bottom Pad, 36-PowerBSSOP
Package Width	11 mm
Rds On (Typ)	125 mOhm
Switch Type	Relay, Solenoid Driver
Voltage - Load (Max)	36 V
Voltage - Load (Min)	9.2 V
Voltage - Supply (Vcc/Vdd) Maximum	36 V
Voltage - Supply (Vcc/Vdd) Minimum	9.2 V

ISO808A Series

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

Part	Input Type	Fault Protection	Interface	Package Length	Package Name	Package Width	Number of Outputs	Voltage - Load (Max)	Voltage - Load (Min)	Mounting Type	Current - Output (Max)	Operating Temperature (Max)	Operating Temperature (Min)	Output Type	Switch Type	Features	Voltage - Supply (Vcc/Vdd) Maximum	Voltage - Supply (Vcc/Vdd) Minimum	Rds On (Typ)	Input Ratio	Output Ratio	Output Configuration
STMicroelectronics ISO808ATR	Non-Inverting	Current Limiting (Fixed) Over Load Over Temperature Over Voltage Reverse Current UVLO	On/Off SPI	0.433 in	36-PowerBSSOP Bottom Pad PowerSO-36	11 mm	8	36 V	9.2 V	Surface Mount	2.3 A	125 °C	-40 °C	N-Channel	Relay Solenoid Driver	Auto Restart Power Good Status Flag	36 V	9.2 V	125 mOhm	1	8	High Side
STMicroelectronics ISO808A	Non-Inverting	Current Limiting (Fixed) Over Load Over Temperature Over Voltage Reverse Current UVLO	On/Off SPI	0.433 in	36-PowerBSSOP Bottom Pad PowerSO-36	11 mm	8	36 V	9.2 V	Surface Mount	2.3 A	125 °C	-40 °C	N-Channel	Relay Solenoid Driver	Auto Restart Power Good Status Flag	36 V	9.2 V	125 mOhm	1	8	High Side
STMicroelectronics ISO808AQTR	Non-Inverting	Current Limiting (Fixed) Over Load Over Temperature Over Voltage Reverse Current UVLO	On/Off SPI	0.433 in	36-PowerBSSOP Bottom Pad PowerSO-36	11 mm	8	36 V	9.2 V	Surface Mount	2.3 A	125 °C	-40 °C	N-Channel	Relay Solenoid Driver	Auto Restart Power Good Status Flag	36 V	9.2 V	125 mOhm	1	8	High Side

Pricing

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CAD

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Documents

Technical documentation and resources

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