Product Summary

The MAX3535EEWI is an isolated RS-485/RS-422 full-duplex transceiver which provides 2500VRMS of galvanic isolation between the RS-485/RS-422 side and the processor or control logic side. The MAX3535EEWI allows fast, 1000kbps communication across an isolation barrier when the common-mode voltages (i.e., the ground potentials) on either side of the barrier are subject to large differences. Isolation is achieved through integrated high-voltage capacitors. The MAX3535EEWI also features a 420kHz transformer driver that allows power transfer to the RS-485 side using an external transformer.

Parametrics

MAX3535EEWI absolute maximum ratings: (1)VCC1: -0.3V to +6V; (2)RE, DE, DI: -0.3V to +6V; (3)RO1, ST1, ST2: -0.3V to (VCC1 + 0.3V); (4)VCC2: -0.3V to +8V; (5)SLO: -0.3V to (VCC2 + 0.3V); (6)A, B: ±14V; (7)RO2: -0.3V to the lower of (VCC2 + 0.3V) and +3.4V; (8)Y, Z: -8V to +13V; (9)Digital Outputs Maximum Current RO1, RO2: ±20mA; (10)Junction Temperature: +150℃; (11)Storage Temperature Range: -65 to +150℃; (12)Lead Temperature (soldering, 10s): +300℃.

Features

MAX3535EEWI features: (1)2500VRMS RS-485 Bus Isolation Using On-Chip High-Voltage Capacitors; (2)1000kbps Full-Duplex RS-485/RS-422 Communication; (3)+3V to +5.5V Power-Supply Voltage Range (MAX3535E); (4)+4.5V to +5.5V Power-Supply Voltage Range (MXL1535E); (5)1/8 Unit Receiver Load, Allowing 256 Devices on Bus; (6)±15kV ESD Protection Using HBM; (7)Pin-Selectable Slew-Rate Limiting Controls EMI; (8)Hot-Swap-Protected Driver-Enable Input; (9)Undervoltage Lockout; (10)Isolation-Barrier Fault Detection; (11)Short-Circuit Protected; (12)Thermal Shutdown; (13)Open-Line and Shorted-Line Fail-Safe Receiver Inputs.

Diagrams

MAX3535EEWI pin configuration

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MAX3535EEWI
MAX3535EEWI

Maxim Integrated Products

RS-422/RS-485 Interface IC

Data Sheet

Negotiable 
MAX3535EEWI+
MAX3535EEWI+

Maxim Integrated Products

RS-422/RS-485 Interface IC 3-5V 2500Vrms Iso Transceiver

Data Sheet

0-1: $9.74
1-25: $6.54
25-50: $4.74
50-100: $4.69
MAX3535EEWI+T
MAX3535EEWI+T

Maxim Integrated Products

RS-422/RS-485 Interface IC 3-5V 2500Vrms Iso Transceiver

Data Sheet

0-781: $4.24
781-1000: $4.15
MAX3535EEWI-T
MAX3535EEWI-T

Maxim Integrated Products

RS-422/RS-485 Interface IC

Data Sheet

Negotiable