| Category | |
| Manufacturer Name | |
| Channel Type | |
| Common Mode Transient Immunity (Min) | |
| Data Rate | |
| Inputs | |
| Isolated Power | |
| Lead Spacing | |
| Mounting Type | |
| Number of Channels | |
| Operating Temperature | |
| Pulse Width Distortion (Max) | |
| Supplier Device Package | |
| Supplier Package | |
| Supply Voltage | |
| Technology | |
| Type | |
| Voltage |
The ISO1540DR from Texas Instruments is a low-power, bidirectional digital isolator compatible with I²C interfaces. It offers robust isolation with a withstand voltage of 2500Vrms and a surge isolation voltage of 4000VPK.
This device supports bidirectional data and clock signals, enabling seamless I²C communication up to 1Mbps. It operates within a supply voltage range of 3V to 5.5V and features open-drain outputs with specific sink current capabilities for Side 1 (3.5mA) and Side 2 (35mA).
Designed for reliability, the ISO1540DR has a wide operating temperature range of -40°C to +125°C and exhibits a high common-mode transient immunity (CMTI) of 25kV/µs. It also includes ±50-kV/µs transient immunity and HBM ESD protection of 4kV on all pins, with 8kV on bus pins.
The ISO1540DR is supplied in an 8-SOIC package, suitable for surface mount applications. Safety certifications include isolation per DIN EN IEC 60747-17, UL 1577, and CSA approval per IEC 62368-1.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.84 | $1.84 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The ISO1540DR has a withstand isolation voltage of 2500Vrms and a surge isolation voltage of 4000VPK.
The maximum data rate supported by the ISO1540DR is 1Mbps.
The ISO1540DR operates within a temperature range of -40°C to +125°C.
The ISO1540DR is compatible with I²C interfaces.
The ISO1540DR features 2 channels.
The ISO1540DR is available in an 8-SOIC package.