CMT83085 replaces ISO1430BDW . EMC protected, 12-Mbps, half-duplex, 5-kVrms isolated RS-485 & RS-422 transceiver-Products-Dinglian Microelectronics Co. LTD• Compatible with TIA/EIA-485-A
• PROFIBUS compatible at 5-V bus-side supply
• Bus I/O protection
– ± 30 kV HBM
– ±16 kV IEC 61000-4-2 Contact discharge
– ± 4 kV IEC 61000-4-4 Electrical fast transient
• Low-EMI 500-kbps, 12 Mbps and 50 Mbps Data
Rates
• 1.71-V to 5.5-V logic-side supply (VCC1), 3-V to
5.5-V bus-side supply (VCC2)
• Failsafe receiver for bus open, short, and idle
• 1/8 Unit load up to 256 nodes on bus
• 100-kV/µs (typical) high common-mode transient
immunity
• Extended temperature range from –40°C to
+125°C
• Glitch-free power-up and power-down for hot plugin
• Wide-body SOIC-16 package
• Pin compatible to most isolated RS-485
transceivers
• Safety-related certifications:
– 7071-VPK VIOTM and 1500-VPK VIORM
(reinforced and basic options) per DIN VDE V
0884-11:2017-01
– 5000-VRMS isolation for 1 minute per UL 1577
– IEC 60950-1, IEC 62368-1, IEC 60601-1 and
IEC 61010-1 certifications
– CQC, TUV, and CSA approvals
Safety-related certifications
• DIN VDE V 0884-11: 2017-01
• UL recognition: up to 5000Vrms for 1 minute per
UL1577
• CSA component notice 5A
• CQC approval per GB4943.1-2011
Up to 5000Vrms Insulation voltage
Bus side power supply voltage: 3.0V to 5.5V
VDD1 supply voltage: 2.5 to 5.5 V
High CMTI: ±200Kv/us
High system level EMC performance:
Bus Pins meet IEC61000-4-2±12 kV ESD
• Other Pins meet ±7 kV contact ESD
• Operation temperature: -40°C to 125°C
Fail-safe protection receiver
Slew rate limitation
Robust isolation barrier life:
• More than 40-year projected lifetime
Up to 256 transceivers on the bus
RoHS-compliant packages: SOIC 16 (wide body)
Applications
Industrial automatic control
Isolated RS-485 communication
Smart electric meter and water meter
Security and protection monitoring
