Solid-state fuses, hot-swap & ideal-diode controllers, dual OR-ing & sharing, ECBs; port/interface protection; industrial/automotive front-ends; specialty protections; sensing/telemetry co-design; and design hooks.
eFuse / Hot-Swap / OR-ing Basics
eFuse (Solid-State Fuse)
Programmable ILIM, fast/slow trip curves, SC/OV/OT, soft-start, PG/fault latch and I²C/PMBus telemetry.
Hot-Swap Controller
Controls inrush with SOA protection, hiccup/derate modes, external MOSFET gate drive and reverse blocking.
Ideal Diode Controller
Low-drop OR-ing with reverse-current blocking, priority power switchover and brief holdup.
Dual OR-ing & Current Sharing
Master/slave or autonomous sharing with path-health monitoring and failure bypass.
Electronic Circuit Breaker (ECB)
Current/power thresholds, foldback (e.g., I²t), retry/latch policies and event timestamps.
Port & Interface Protection
USB Port eFuse
OCP/OVP with VBUS discharge, BC ID pin protection, reverse-backfeed block and IEC 61000-4-2 ESD.
USB-C/PD Power-Path Protection
ESD at CC/SBU, VBUS OV/short, cable-flip detect with coordinated clamp and fast disconnect.
HDMI / DisplayPort Protection
Low-cap ESD arrays on TMDS/high-speed pairs, HPD/5 V OVP, EMI filtering and EQ-friendly layout.
Ethernet Port Protection
Differential-pair ESD/surge arrays, CT clamp, common-mode lightning suppression (IEC-4-5/GR-1089).
Audio/Mic/Sensor Port TVS
Low-C ESD with DC-bias protection, debounce and short-limit features.
Industrial Serial (RS-485/RS-422/4-20 mA)
Bus-side ESD/surge, fail-safe RX, short-tolerance, clamps and isolation pairing.
Industrial & Automotive Front-End
Wide-VIN eFuse (12–60 V+)
Reverse-polarity, surge/lightning (IEC 61000-4-5), UV/OV window and thermal derating.
Load-Dump & Cranking Surge Stopper
ISO 7637-2/16750 handling with controlled gate clamp and energy-dissipation monitoring.
Smart High-Side Switch (DO)
OC foldback, SC/OT, open-load diagnostics and slew-rate control for EMI.
Reverse Battery / Polarity Protection
Ideal-diode or active reverse-MOS schemes with low drop and fast switchover.
Relay / Inductive Kick Clamp
Adaptive freewheel/clamp with energy counting and harness-EMI mitigation.
Specialty Protection ICs
LED / Backlight String Protection
Open/short detect, OVP clamps, thermal derating and bypass networks.
Imager / Analog Bias Protection
Low-noise OVP with soft-clamp; respects power-up order and pre-bias.
Motor/Driver Front-End eFuse
Startup inrush limiting with stall/lock fast-trip and timed restart.
PoE Protection (PSE/PD)
Works with detection/classification; lightning/cross-pair clamps and power rules/meters.
Medical / Metrology Input Protection
High-voltage/ESD bleed paths, patient-leakage limits and pre-isolation protection matrices.
Sensing, Telemetry & Co-Design
Precision Current/Power Sense
Shunt/isolated amps or ΣΔ modulators, bidirectional measurement with alert thresholds.
OV/UV Window Supervisor
Fast-shutdown triggers with reset/PG ties for sequencing dependencies.
PMBus/I²C Protection Manager
V/I/T telemetry with black-box events and last-gasp write-back.
Security Aids for Power Path
Adapter/battery authentication, signed switching and tamper-proof logs.
Design Hooks
SOA & Thermal
Pick/parallel MOSFETs, verify RθJA, use I²t curves and thermal foldback strategies.
Inrush & EMI
Control soft-start dV/dt, spread-spectrum/RC snubbers and compensate cable drops.
Robustness & Compliance
Design to IEC 61000-4-2/-4/-5, ISO 7637-2 and UL/IEC creepage/clearance rules.
System Interlocks
Up/down-stream PG interlocks, bypass/maintain supply and holdup cap/supercap tactics.
Diagnostics & Service
Fault class/counters, programmable thresholds, remote disable/power-limit and FRU-friendly design.
