Equipment control & power
Explore auxiliary supply, supervision, temperature measurement and service-interface components.
Component building blocks
Functional blocks for selection; device connections and component values depend on your design.
Auxiliary power rails
Generate local controller and analog rails with step-down conversion and LDO regulation. Match the input range and current to the rail.
Supply supervision
Monitor a local rail and provide reset supervision for the controller. Select the required threshold variant.
Temperature monitoring
Read equipment temperature using the handbook-listed temperature sensor. Verify the sensing arrangement and interface in the device documentation.
Wired equipment interfaces
Provide RS-485 or isolated RS-422/RS-485 communication between equipment controllers.
Electrical parameters & cross references
All handbook parameters for the components shown above. Scroll each table horizontally to view every column.
Buck Converters
| BI Part Number | Cross Reference | Function | Rectification | Input voltage (V) | Output voltage (V) | Output current (A) | Quiescent current (mA) | Switching frequency (kHz) | Efficiency (%) | Package |
|---|---|---|---|---|---|---|---|---|---|---|
| BIW54302PMC | — | 28 V input step-down DC/DC converter | Synchronous | 4.5–28 | ADJ(VFB=0.6V) | 3 | 0.14 | 500 | 90 | TSOT23-6 |
Low-dropout Regulators
| BI Part Number | Cross Reference | Function | Input voltage (V) | Output voltage (V) | Initial accuracy | Output current (A) | Ripple rejection | Quiescent current (mA) | Package |
|---|---|---|---|---|---|---|---|---|---|
| BIW3042PM1C | LT3042 | 200 mA LDO regulator | ~20V | 1.5–15 | ±1% | 0.2 | 92dB@10kHz | 4 | DFN-10 |
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 |
Temperature Sensors
| BI Part Number | Cross Reference | Function | Supply voltage (V) | Input voltage (V) | Operating current (mA) | Quiescent current (mA) | Temperature error (°C) | Package |
|---|---|---|---|---|---|---|---|---|
| BI423 | TMP423 | Temperature Sensors | 2.7–5.5 | 2.7–5.5 | 0.038 | 0.01 | ±1.5°C | SOP-8 |
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 |
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.