ISO1540QDRQ1 – 2‑Channel Bidirectional I²C Digital Isolator (AEC‑Q100) | Available at ChipsX
The ISO1540QDRQ1 is a low-power, dual-channel bidirectional I²C isolator from Texas Instruments , engineered with capacitive isolation technology for robust signal separation. It’s designed to support isolated communication between different domains in harsh environments while maintaining full compatibility with I²C and SMBus protocols. Key Features: Automotive-grade AEC-Q100 qualification , covering operation from –40 °C to +125 °C Isolation rating of 2.5 kVrms and excellent transient immunity of 25 kV/µs Supports I²C clock stretching and data rates up to 1 MHz Supply voltage range: 3.0 V to 5.5 V Low power consumption with open-drain outputs (3.5 mA sink Side 1, 35 mA sink Side 2) Functional safety-capable with documentation support Compact SOIC-8 package Typical Applications: High-voltage battery management and EV/HEV systems Isolated I²C, SMBus, and PMBus interfaces Motor control units and body electronics Sensor gateways and industrial au...