Spesifikasi
ISO1I811TXUMA1 is Infineon’s ISOFACE™ integrated 8-channel galvanically isolated digital input IC, suffix XUMA1 denotes tape-and-reel lead-free halogen-free 48-TFSOP packaging for automated industrial SMT mass production. It integrates coreless transformer isolation, IEC61131-2 compliant sensor input stages, digital deglitch filter and dual MCU communication interfaces, highly optimized for compact PLC remote IO modules and industrial signal acquisition boards.
👉 It differs from ISO1I813T with wire-break diagnosis function; ISO1I811T focuses on standard 8-channel isolated digital input sampling without open-line detection, featuring smaller BOM and lower cost for basic industrial DI expansion.
Fitur Utama
- 8-Channel IEC61131-2 Standard Digital Input Frontend
- Fully compliant with IEC61131-2 Type 1 / Type 2 / Type 3 industrial proximity sensors and mechanical switches
- Constant-current input topology minimizes power dissipation and heating on input resistors
- Independent digital averaging deglitch filter per channel, adjustable filtering time to suppress EMC interference pulses
- Dedicated status LED driver pin for each channel for on-site signal status visualization
- Common field-side ground GNDFI design, supports multi-sensor parallel wiring
- Integrated 500VAC Galvanic Isolation
- Coreless magnetic transformer isolation, isolation rating 500 VAC (UL1577 / EN60664-1 certified)
- Minimum 25 kV/µs common-mode transient immunity (CMTI), robust against industrial motor and relay noise surges
- Separates noisy field sensor side and sensitive MCU control side, eliminates ground loop interference
- No extra discrete optocouplers required, greatly reduces PCB area and component count
- Dual Communication Interfaces for MCU Connection
- Two optional host interfaces configurable by hardware pin strap:
- Parallel 8-bit bus for fast real-time signal reading
- 4-wire SPI serial bus (3.3V / 5V IO compatible) for daisy-chain multi-chip expansion
- Max sampling frequency up to 125 kHz for high-speed discrete signal capture
- Global /ERR fault flag pin to alert MCU of supply abnormal conditions
- Built-In System Monitoring Protection
- VBB field-side supply under-voltage detection, pre-warning signal before power loss triggers invalid data flag
- Internal power monitoring circuit prevents false sampling during voltage fluctuation
- Wide dual supply range: Field side VBB 12V~24V industrial DC; Control side VCC 3.0V~5.5V matching all mainstream industrial MCUs
- Package & Environmental Specifications
- Package: 48-pin narrow-body TFSOP (6.1mm width), compact slim outline for dense IO board stacking
- Operating temperature range: -40°C ~ +85°C industrial grade
- MSL 3 moisture sensitivity level, fully RoHS & SVHC compliant, halogen-free
- Tape-and-reel bulk packaging (XUMA1 suffix) compatible with high-volume automated assembly lines
Aplikasi Khas
Compact PLC digital input expansion modules and remote distributed IO stations
Industrial HMI equipment sensor signal isolated acquisition boards
Factory automation conveyor, limit switch and proximity sensor signal sampling
CNC machine tool discrete position signal isolation interface
Smart building access control and fire alarm signal input boards
Test & measurement multi-channel digital signal acquisition fixtures
New energy photovoltaic and energy storage equipment safety switch monitoring
Agricultural machinery industrial control discrete input isolation circuits
Railway auxiliary equipment low-speed digital signal isolated frontends
LXB Semicon supplies original Infineon ISO1I811TXUMA1 ISOFACE 8-channel isolated digital input IC
