Equipment control interfaces
Explore wired service and control links, signal isolation and local supply supervision.
Component building blocks
Functional blocks for selection; device connections and component values depend on your design.
Wired equipment interfaces
Provide RS-485 or isolated RS-422/RS-485 communication between equipment controllers.
Digital signal isolation
Separate controller-side digital signal domains using the listed isolators. Channel direction and insulation requirements are device-specific.
Supply supervision
Monitor a local rail and provide reset supervision for the controller. Select the required threshold variant.
Electrical parameters & cross references
All handbook parameters for the components shown above. Scroll each table horizontally to view every column.
RS-232 / RS-422 / RS-485
| BI Part Number | Cross Reference | Function | Supply voltage (V) | Data rate (Mbps) | ESD (kV) | Quiescent current (mA) | Common-mode range (V) | Package |
|---|---|---|---|---|---|---|---|---|
| BI3485 | AMT0114B / MAX3485 | RS-485 transceiver | 3.3 | 12 | — | 0.5 | -7–12 | SOP8/TSSOP8 |
Isolated Transceivers
| BI Part Number | Cross Reference | Function | Interface | Supply voltage (V) | Control-pin voltage | Bus-side input voltage (V) | Output current (A) | Package |
|---|---|---|---|---|---|---|---|---|
| BI83086PMC | GL2941 / NSi83086 | Isolated RS-422/RS-485 transceiver | Full-duplex RS-422 / RS-485 | -0.5–6 | −0.5 V to (VCC1+0.5) V | ±15 | ±10 mA | SOIC-16 |
Digital Isolators
| BI Part Number | Cross Reference | Function | Channels | Supply voltage (V) | Data rate (Mbps) | Common-mode transient immunity (kV/µs) | Package |
|---|---|---|---|---|---|---|---|
| BI1200/1PSH/L | ADUM2200 / 1 ADUM2210 / 1 / ISO7521 / HCPL-9030 / 1 | Digital Isolators | 2 | 2.5–5.5 | 150 | 50 | SOIC-8 |
I²C Isolators
| BI Part Number | Cross Reference | Function | Supply voltage (V) | I/O signal voltage | Maximum frequency (MHz) | Common-mode transient immunity (kV/µs) | Package |
|---|---|---|---|---|---|---|---|
| BIGD1250PM | ADUM1250 | Bidirectional I²C isolator | -0.5–7 | 5 V recommended | 1 | ±100 | SOIC-8 |
Voltage Supervisors & Reset ICs
| BI Part Number | Cross Reference | Function | Supply voltage (V) | Reset threshold (V) | Reset pulse width (ms) | Manual reset | Watchdog timeout (unit not stated) | Reset output | Watchdog timeout (s) | Package |
|---|---|---|---|---|---|---|---|---|---|---|
| BIW3808-XXPMC | TPS3808 | Voltage Supervisors & Reset ICs | 1.65–6.5 | 0.405–4.65 | Programmable | Yes | 1 | Low | — | SOT23-6 |
| BIW809XPMC | MAX809 | Voltage Supervisors & Reset ICs | 1–5.5 | 2.25–4.65 | 240 | No | — | Low | — | SOT-23-3 |
Selection based on documented BI component functions. Cross references are comparison aids and do not establish drop-in compatibility or transfer another manufacturer’s qualification.