Application guide

CAN control nodes

Select CAN interface, local power and reset components around a vehicle controller.

3 functional blocks6 components for evaluationCompare all parameters ↓
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Component building blocks

Functional blocks for selection; device connections and component values depend on your design.

FUNCTION / 01

CAN bus interface

Connect a controller to a differential CAN bus. Select the transceiver against bus rate, supply and common-mode requirements.

FUNCTION / 02

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.

FUNCTION / 03

Supply supervision

Monitor a local rail and provide reset supervision for the controller. Select the required threshold variant.

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Electrical parameters & cross references

All handbook parameters for the components shown above. Scroll each table horizontally to view every column.

CAN Transceivers

BI Part NumberCross ReferenceFunctionChannelsSupply voltage (V)Fault-tolerant voltage (V)Common-mode range (V)Data rate (Mbps)ESD (kV)Package
BI1043TJA1043CAN transceiver14.5–5.5-58–58-30–305—SOP14/TSSOP14
BI1050TJA1050CAN Transceivers14.5–5.5-40–40-12–1218SOP8/TSSOP8

Buck Converters

BI Part NumberCross ReferenceFunctionRectificationInput voltage (V)Output voltage (V)Output current (A)Quiescent current (mA)Switching frequency (kHz)Efficiency (%)Package
BIW54302PMC—28 V input step-down DC/DC converterSynchronous4.5–28ADJ(VFB=0.6V)30.1450090TSOT23-6

Low-dropout Regulators

BI Part NumberCross ReferenceFunctionInput voltage (V)Output voltage (V)Initial accuracyOutput current (A)Ripple rejectionQuiescent current (mA)Package
BIW3042PM1CLT3042200 mA LDO regulator~20V1.5–15±1%0.292dB@10kHz4DFN-10

Voltage Supervisors & Reset ICs

BI Part NumberCross ReferenceFunctionSupply voltage (V)Reset threshold (V)Reset pulse width (ms)Manual resetWatchdog timeout (unit not stated)Reset outputWatchdog timeout (s)Package
BIW3808-XXPMCTPS3808Voltage Supervisors & Reset ICs1.65–6.50.405–4.65ProgrammableYes1Low—SOT23-6
BIW809XPMCMAX809Voltage Supervisors & Reset ICs1–5.52.25–4.65240No—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.