Shenzhen Retechip Electronics Co., Ltd
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ISO1540DR Digital Isolator IC Battery Management CAN Transceiver Low Power Bidirec I2C
Applications
• Isolated I2C buses
• SMBus and PMBus interfaces
• Open-drain networks
• Motor control systems
• Battery management
• I 2C level shifting
Specifications
| Product Attribute | Attribute Value |
|---|---|
| Texas Instruments | |
| Product Category: | Digital Isolators |
| ISO1540 | |
| SMD/SMT | |
| SOIC-8 | |
| 2 Channel | |
| 1 Mb/s | |
| 2500 Vrms | |
| Capacitive Coupling | |
| 5.5 V | |
| 3 V | |
| 2.5 mA, 3.1 mA | |
| 70 ns | |
| - 40 C | |
| + 125 C | |
| Reel | |
| Moisture Sensitive: | Yes |
| Operating Supply Voltage: | 3 V to 5.5 V |
| Protocol Supported: | I2C |
| Subcategory: | Interface ICs |
| Type: | I2C Isolator |
Description
The ISO1540 and ISO1541 devices are low-power, bidirectional isolators that are compatible with I2C interfaces. These devices have logic input and output buffers that are separated by Texas Instruments Capacitive Isolation technology using a silicon dioxide (SiO2) barrier. When used with isolated power supplies, these devices block high voltages, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.
This isolation technology provides for function, performance, size, and power consumption advantages when compared to optocouplers. The ISO1540 and ISO1541 devices enable a complete isolated I2C interface to be implemented within a small form factor. The ISO1540 has two isolated bidirectional channels for clock and data lines while the ISO1541 has a bidirectional data and a unidirectional clock channel.
The ISO1541 is useful in applications that have a single controller while the ISO1540 is suitable for multi-controller applications. For applications where clock stretching by the target is possible, the ISO1540 device should be used.
Isolated bidirectional communication is accomplished within these devices by offsetting the low-level output voltage on side 1 to a value greater than the highlevel input voltage on side 1, thus preventing an internal logic latch that otherwise would occur with standard digital isolators.
Features
• Isolated bidirectional, I2C compatible, communication
• Supports up to 1-MHz operation
• 3-V to 5.5-V supply range
• Open-drain outputs With 3.5-mA Side 1 and 35- mA Side 2 sink current capability
• –40°C to +125°C operating temperature
• ±50-kV/µs transient immunity (Typical) • HBM ESD protection of 4 kV on all pins; 8 kV on bus pins
• Safety-related certifications:
– 4242-VPK isolation per DIN EN IEC 60747-17 (VDE 0884-17)
– 2500-VRMS isolation for 1 minute per UL 1577
– CSA approval per IEC 62368-1 end equipment standard
– CQC basic insulation per GB4943.1-2011
Trading Guides
| Shipping | Delivery period |
For in-stock parts, orders are estimated to ship out in 3 days.
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| Shipping rates |
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| Shipping option |
We provide DHL, FedEx, EMS, SF Express, and Registered Air Mail international shipping.
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| Shipping tracking |
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| Returning warranty | Returning |
Returns are normally accepted when completed within 30 days from date of shipment.Parts should be unused and in original packaging.Customer has to take charge for the shipping.
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| Warranty |
All Retechip purchases come with a 30-day money-back return policy, This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation
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