SN65HVD1794
- Bus-Pin Fault Protection to > ±70 V
- Cable Invert Function Allows Correction for Reversed Bus Pins
- Common-Mode Voltage Range (–20 V to 25 V) More Than Doubles TIA/EIA
485 Requirement - Bus I/O Protection
- ±16 kV JEDEC HBM Protection
- Reduced Unit Load for Up to 256 Nodes
- Failsafe Receiver for Open-Circuit, Short-Circuit and Idle-Bus Conditions
- Low Power Consumption
- ICC 5 mA Quiescent During Operation
- Power-Up, Power-Down Glitch-Free Operation
These devices are designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. They are also robust to ESD events, with high levels of protection to human-body model specifications.
These devices combine a differential driver and a differential receiver, which operate from a single power supply. The driver differential outputs and the receiver differential inputs are connected internally to for a bus port suitable for half-duplex (two-wire bus) communication. A cable invert pin (INV) allows active correction of mis-wires that may occur during installation. Upon detecting communication errors, the user can apply a logic HIGH to the INV pin, effectively inverting the polarity of the differential bus port, thereby correcting for the reversed bus wires.
These devices feature a wide common-mode voltage range, making them suitable for multi-point applications over long cable runs. These devices are characterized from –40°C to 105°C.
For similar features with 3.3 V supply operation, see the SN65HVD1781 (SLLS877).
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | 70-V Fault-Protected RS-485 Transceivers with Cable Invert datasheet (Rev. A) | 2012/09/28 | |
| EVM User's guide | RS-485 Half-Duplex EVM User's Guide (Rev. C) | PDF | HTML | 2021/09/01 |
설계 및 개발
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| 패키지 | 핀 | 다운로드 |
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주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
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