ISL32430E

• Product Introduction

Key features:

Fail-protected RS-485 bus pins: up to ±40V Extended common mode range: ±15V is greater than the required RS-485 Based on the RS-485 bus pin, it has ± 15kV HBM ESD protection Wide supply voltage range: 3V to 5.5V The cable reversal pin (ISL32437E only) corrects the reversal cable connection while maintaining full fail-safe function for receiving it 1/4 unit load on the bus for up to 128 devices High transient overvoltage tolerance: ±60V All fail-safe (open, short, terminated) RS-485 reception RS-485 data transfer rate: 250Kbps or 1Mbps choice Low quiescent current: 2.1 mA Ultra-low shutdown supply current: 10μA Lead-free (RoHS compliant) description

With ISL32437E, ISL32430E 3.3V to 5V power supply, fault protection, extended common-mode range differential transceiver, balanced communication. The RS-485 bus pins (driver output and receiver input) for overvoltage protection ± 40V for ESD shock ± 15kV. In addition, the common mode voltage of up to ±15V in the operating environment of these transceivers (exceeding RS-485 requirements) makes this RS-485 Series1 even more powerful on the market. Transmitters with V RS-485 standard CC≥4.5 V and CC = 3V receiver (RX) input 1 1.1V differential output voltage specified by RS-485, even with V54Ω loads offer a complete fail-safe design that guarantees logic high Rx outputs if floating Rx inputs, short circuits, or terminations, but no drivers (idle) on the bus. Receiving full fail-safe operation, the Rx input polarity switching (ISL32437E on the cable inversion function) is still maintained ISL32437E the conversion function includes cables, and in the case of Rx and Tx bus cables with reversing polarity, errors are made during installation, see Table 1 on page 2 Key Features and Equipment Number Configuration