Technical Specifications
Parameters and characteristics for this part
| Specification | ISO808A-1 |
|---|---|
| Current - Output (Max) [Max] | 2.3 A |
| Fault Protection | Reverse Current, Over Voltage, UVLO, Over Load, Current Limiting (Fixed), Over Temperature |
| Features | Status Flag, Power Good, Auto Restart |
| Input Type | Non-Inverting |
| Interface | On/Off, SPI |
| Mounting Type | Surface Mount |
| Number of Outputs | 8 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | High Side |
| Output Type | N-Channel |
| Package / Case | 36-PowerBSSOP |
| Ratio - Input:Output | 1:8 |
| Rds On (Typ) | 125 mOhm |
| Supplier Device Package | PowerSO-36, Bottom Pad |
| Switch Type | Relay, Solenoid Driver |
| Voltage - Load [Max] | 36 V |
| Voltage - Load [Min] | 9.2 V |
| Voltage - Supply (Vcc/Vdd) [Max] | 36 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 9.2 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
Description
General part information
ISO808A-1 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.
Documents
Technical documentation and resources