TPT487L1-SO1R

TPT487 3.0V to 5.5V RS-485 Transceivers Description Features The TPT487 are IEC61000 ESD protected, 3.0V to 5.5V ⚫ Exceeds Requirements of EIA-485 Standard ⚫ Hot Plug Circuitry - Tx and Rx Outputs Remain Three- powered transceivers that meet the RS-485 and RS-422 standards for balanced communication. State During Power-up/Power-down Transmitters in this family deliver exceptional differential output ⚫ Data Rate: 500 Kbps ⚫ Up to 256 Nodes on a Bus (1/8 unit load) at 500kbps ⚫ Full Fail-safe Receiver (Open, Short, Terminated) ⚫ Wide Supply Voltage 3V to 5.5V on the network without using repeaters. Receiver (Rx) inputs ⚫ Bus-Pin Protection: feature a “Full Fail-Safe” design, which ensures a logic high Rx ⚫ voltages into the RS-485 required 54Ω load. These 500kbps devices have very low bus currents so they present a true “1/8 unit load” to the RS-485 bus. This allows up to 256 transceivers ±18 kV HBM ESD output if Rx inputs are floating, shorted, or on a terminated but ±15 kV IEC61000-4-2 Contact Discharge undriven bus. ±18 kV IEC61000-4-2 Air Discharge TPT487 is designed for half-duplex RS485, and support SOP8， –40°C to 125°C Operation Temperature Range MSOP8 and DFN3X3-8L package, which is characterized from –40°C to 125°C. Applications ⚫ Motor Drives ⚫ Industrial Control ⚫ Communication Infrastructure Device Table Part Duplex Enable Data Rate Nodes TPT487 Half Yes 500Kbps 256 Simplified Schematic TPT487 Block Diagram TPT481, TPT487 www.3peakic.com.cn TPT482, TPT488 1 / 12 TPT487 Network TPT482A, TPT488A Rev. A TPT487 3.0V to 5.5V RS-485 Transceivers Revision History Date Revision Notes 2019/1/14 Rev. Pre 0.1 Definition Version 0 2019/6/15 Rev. Pre 0.2 Update package information 2019/9/17 Rev. 0 Release version 2020/3/20 Rev. A Update absolute rating www.3peakic.com.cn 2 / 12 Rev. A TPT487 3.0V to 5.5V RS-485 Transceivers Pin Configuration and Functions Pin No. Pin Name I/O Description 1 R Digital output Receiver Output. 2 /RE Digital input Receiver Output Enable. 3 DE Digital input Driver Output Enable. 4 D Digital input Driver Input. 5 GND Ground Ground. 6 A Bus input/output Noninverting Receiver Input A and Noninverting Driver Output A. 7 B Bus input/output Inverting Receiver Input B and Inverted Driver Output B. 8 VCC Power Power Supply. Order Information Model Name Order Number TPT487 TPT487L1-SO1R 8-Pin SOP MSL1 Tape and Reel 4,000 T487 TPT487 TPT487-VS1R 8-Pin MSOP MSL3 Tape and Reel 3,000 T487 TPT487 TPT487L1-DF6R 8-Pin DFN3X3 MSL1 Tape and Reel 4,000 T487 www.3peakic.com.cn MSL Level Package 3 / 12 Transport Media, Quantity Marking Information Rev. A TPT487 3.0V to 5.5V RS-485 Transceivers Functional Table Driver Function Table Input Enable Outputs Outputs Description D DE A B H H H L Actively drives bus High L H L H Actively drives bus Low X L Z Z Driver disabled Z Z Driver disabled by default H L Actively drives bus High by default Input Input Output A-B /RE R >-50mV L H Receive valid bus High -200mV