CA-IF4888HS
Bus Polarity Correction RS485 Transceiver
CA-IF4888HS
Bus Polarity Correction RS485 Transceiver

Product Details

General Description

The CA-IF4888 half-duplex ±30kV ESD-protected RS-485 transceiver features integrated automatic polarity correction to ensure that miswired A and B lines are autonomously corrected, simplifying equipment and network installation. Upon hot plug-in, the CA-IF4888 detects and corrects the bus polarity within the first 76 ms of bus idling. This device has ±30V fault protection for overvoltage conditions on the communication bus lines that ensure robust protection on the bus. It also features ±15V of common-mode range (CMR), making them ideal for electrically noisy environments where different systems have shifting ground levels relative to each other and long distance transmission.

The CA-IF4888 device is specified over the -40°C to +125°C operating temperature range and is available in SOIC8 package.

Features
名称参数
Automatic Polarity Correction Within 80ms (typ.)
High-Performance and Compliant with RS-485 EIA/TIA-485 Standard 300bps to 500kbps data rate
1/8 unit load enables up to 256 nodes on the bus
3V to 5.5V supply voltage range
Integrated Protection for Robust Communication ±30V fault protection range on driver outputs/receiver inputs
Common-mode voltage range: ±15V
±30kV Human Body Model ESD protection
Short-circuit protection and thermal shutdown
True fail-safe guarantees known receiver output state
Low Power960µA (max.) @ receive mode
Shutdown current: < 5µA
Wide Operating Temperature Range–40°C to 125°C
Package 8 pin SOIC
Applications

◎ Industrial automation and process control
◎ HVAC systems
◎ Electricity meters
◎ Inverters

Device information
Part NumberPackagePackage Size (NOM)
CA-IF4888HSSOIC83.9mm*4.9mm
Simplified Channel Structure

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