THVD1406
- Meets or exceeds the requirements of the TIA/EIA-485A standard
- 3-V to 5.5-V Supply voltage
- Auto-direction control using the data input pin
- Half-duplex RS-422/RS-485
- Data rates
- THVD1406: 500 kbps
- THVD1426: 12 Mbps
- Bus I/O protection
- ±16-kV HBM ESD
- ±12-kV IEC 61000-4-2 Contact discharge
- ±15-kV IEC 61000-4-2 Air gap discharge
- ±4-kV IEC 61000-4-4 Fast transient burst
- ±16-V bus fault protection
- Small, space-saving 8-Pin SOT package option (2.1 mm x 1.2 mm)
- See the layout example for co-layout with standard SOIC-8 package
- Extended industrial temperature range: -40°C to 125°C
- Large receiver hysteresis for noise rejection
- Low power consumption
- Low standby supply current: 3µA (typ)
- Quiescent current during operation: 1.7 mA (typ)
- Glitch-free power-up, power-down for hot plug-in capability
- Open, short, and idle bus fail-safe
- 1/8 Unit load (Up to 256 bus nodes)
The THVD14x6 (THVD1406 and THVD1426) devices are robust half-duplex RS-485 transceivers for industrial applications. These devices feature auto-direction control using the data input pin that reduces the reliance on separate pins for driver-enable and the receiver-enable functionality. This reduces the number of isolation channels needed or number of the GPIO pins needed for logic control. The bus pins are immune to high levels of IEC ESD events eliminating need of additional system level protection components.
The devices operate from a single 3-V to 5.5-V supply. The wide common-mode voltage range and low input leakage on bus pins make devices suitable for multi-point applications over long cable runs.
The devices are available in industry standard 8-pin SOIC package for drop-in compatibility. The devices are also available in a small, space-saving SOT package. The devices are characterized for ambient temperatures from –40°C to 125°C.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | THVD1406, THVD1426 3.3-V to 5-V RS-485 Transceivers with Auto-direction Control and ±12-kV IEC ESD Protection datasheet (Rev. A) | PDF | HTML | 2021. 11. 16 | |
| 애플리케이션 노트 | RS-485: What is Auto-Direction and Why it is Useful in Systems? | PDF | HTML | 2022. 3. 30 |
설계 및 개발
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RS485-HF-DPLX-EVM — RS-485 하프 듀플렉스 평가 모듈
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-5X3 (DRL) | 8 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
주문 및 품질
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