ISO1500
- Meets or exceeds requirements of TIA/EIA-485-A
- Half-duplex transceiver
- Low-EMI 1-Mbps data rate
- Bus I/O protection
- ± 16 kV HBM ESD
- 1.71-V to 5.5-V Logic-side supply (VCC1), 4.5-V to 5.5-V Bus-side supply (VCC2)
- 1/8 Unit load: up to 256 nodes on bus
- Failsafe receiver for bus open, short, and idle
- 100-kV/µs (typical) High common-mode transient immunity
- Extended temperature range from –40°C to +125°C
- Glitch-free power-up and power-down for hot plug-in
- Ultra-small SSOP (DBQ-16) package
- Safety-related
certifications:
- 4242-VPK VIOTM and 566-VPK VIORM per DIN VDE V 0884-11:2017-01
- 3000-VRMS Isolation for 1 minute per UL 1577
- IEC 60950-1, IEC 62368-1 and IEC 61010-1 certifications
- CQC, TUV, and CSA certifications
The ISO1500 device is a galvanically-isolated differential line transceiver for TIA/EIA RS-485 and RS-422 applications. This device has a 3-channel digital isolator and an RS-485 transceiver in an ultra-small 16-pin SSOP package. The bus pins of this transceiver are protected against IEC ESD contact discharge and IEC EFT events. The receiver output has a failsafe for bus open, short, and idle conditions. The small solution size of ISO1500 greatly reduces the board space required compared to other integrated isolated RS-485 solutions or discrete implementation with optocouplers and non-isolated RS-485 transceiver.
The device is used for long distance communications. Isolation breaks the ground loop between the communicating nodes, allowing for a much larger common mode voltage range. The symmetrical isolation barrier of each device is tested to provide 3000 VRMS of isolation for 1 minute per UL 1577 between the bus-line transceiver and the logic-level interface.
The ISO1500 device can operate from 1.71 V to 5.5 V on side 1 which lets the devices interface with low-voltage FPGAs and ASICs. The supply voltage on side 2 is from 4.5 V to 5.5 V. This device supports a wide operating ambient temperature range from –40°C to +125°C.
技術資料
設計と開発
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ISO1500DBQEVM — ISO1500DBQ 超小型パッケージ、絶縁型 RS-485 の評価基板
| パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
|---|---|---|
| SSOP (DBQ) | 16 | Ultra Librarian |
購入と品質
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