THVD1510DR - 5V RS-485 Transceiver, ±18kV ESD, SOIC-8 | Texas Instruments
料号： THVD1510DR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.3 | $2.30 |
| 10 | $1.95 | $19.50 |
| 100 | $1.55 | $155.00 |
| 500 | $1.28 | $640.00 |
| 1,000 | $1.05 | $1,050.00 |
THVD1510DR 概述
An RS-485 transceiver is a differential line driver/receiver IC that enables robust half-duplex or full-duplex serial communication over twisted-pair copper media. RS-485 belongs to the TIA/EIA-485 standard family of balanced digital interfaces used in industrial fieldbus, building automation, motor control, and remote sensor backbones. As a physical-layer interface IC (PHY-LVL interface), it sits between an application MCU's UART and the physical twisted-pair bus, providing the voltage-level translation, common-mode range, and noise immunity that UART logic alone cannot deliver over long distances.
Key features include ±18kV IEC ESD on bus pins (HBM 16kV on A/B), ±70V fault tolerance, an extended common-mode range of ±25V, true fail-safe receiver topology, and 1/8 unit-load support allowing up to 256 nodes on a single bus. The half-duplex architecture integrates a single differential driver and a single differential receiver sharing one bus pair (A/Y, B/Z), minimizing board area. Industrial operating temperature spans -40C to +125C, supporting outdoor and factory-floor deployment.
The THVD1510 uses a charge-pump-assisted driver architecture to drive the bus with 5V signaling independent of supply voltage. The receiver's true fail-safe topology guarantees a logic-high output when the bus is shorted, open, or idle, eliminating the need for external bias resistors. Internal hot-plug protection prevents inrush current during board insertion into energized backplanes.
Typical applications include industrial fieldbus nodes (Modbus RTU, Profibus DP, BACnet MS/TP), solar inverter string monitoring, EV charging station communication, smart-meter AMI concentrators, HVAC controllers, motor-drive CAN-bridge interfaces, and any point-to-point or multipoint RS-485 link operating up to 10 Mbps. The wide common-mode range and ±18kV ESD rating simplify design for IEC 61000-4-2 compliant installations.
When designing with this part, verify that cable stub length stays below recommended budgets at 10 Mbps to avoid reflections, and provide a 100 nF decoupling capacitor within 5 mm of VCC. For 256-node configurations, ensure total bus capacitance does not exceed the unit-load budget. The fail-safe receiver eliminates external bias resistors.
This page synthesizes distributor pricing, drop-in alternatives including same-family THVD15xx members and cross-brand equivalents, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： THVD1510DR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： THVD1510DR （相同外形与封装尺寸） ——差异在于 Package, Protocol, Supply Voltage, Common-Mode Range, Operating Temperature Range.
快速对比工具——选择替代料号进行并排对比：
THVD1510DR
✅ 直接替换✓ 有现货
$1.05 / 个
查看数据手册 →THVD1550DR
✅ 直接替换📋 参考替代料（不在目录中）
THVD1551DR
✅ 直接替换📋 参考替代料（不在目录中）
MAX485ESA+
✅ 直接替换✓ 有现货
$0.92 / 个
查看数据手册 →SP485EEN
✅ 直接替换📋 参考替代料（不在目录中）
ADM485ARZ-REEL
✅ 直接替换✓ 有现货
$1.62 / 个
查看数据手册 →ISL3179AEFRZ
✅ 直接替换📋 参考替代料（不在目录中）
THVD1510DR 规格参数
| Product Type | RS-485/RS-422 Transceiver |
| Protocol | RS-485, RS-422 |
| Configuration | 1 Driver / 1 Receiver (Half-Duplex) |
| 电源电压 | 4.5 V to 5.5 V |
| Signaling Rate | up to 10 Mbps |
| IEC ESD Protection (Bus) | ±18 kV (IEC 61000-4-2 contact/air) |
| HBM ESD Protection | ±16 kV (bus pins, per TI datasheet) |
| Common-Mode Range | ±25 V |
| Fault Tolerance | ±70 V (bus pins) |
| Receiver Unit Load | 1/8 UL (up to 256 nodes) |
| Receiver Type | True Fail-Safe |
| Quiescent Current (typ) | less than 1 mA |
| 工作温度 | -40 C to +125 C |
| 封装 | SOIC-8 (D), 3.90 mm body width |
| 安装类型 | Surface Mount |
| 引脚数量 | 8 |
| RoHS 状态 | Compliant |
THVD1510DR 引脚配置
| 引脚 1 | RO — Receiver output (logic-high when bus is non-idle, fail-safe high when bus is idle/short) |
| 引脚 2 | RE — Receiver enable, active-low (logic-low enables RO) |
| 引脚 3 | DE — Driver enable, active-high (logic-high enables driver) |
| 引脚 4 | DI — Driver input (logic input to differential driver) |
| 引脚 5 | GND — Ground |
| 引脚 6 | A/Y — Non-inverting differential bus pin |
| 引脚 7 | B/Z — Inverting differential bus pin |
| 引脚 8 | VCC — 5V supply input (4.5V to 5.5V) |
典型应用
THVD1510DR 适用于 8 应用s: Industrial Fieldbus (Modbus RTU / BACnet MS/TP), Solar Inverter String Monitoring, EV Charging Station Communication, Smart Meter AMI Concentrator, HVAC and Building Automation Controllers, Motor Drive and Servo Communication, Point-of-Sale (POS) and Kiosk Networks, Security and Access Control Panels.
Industrial Fieldbus (Modbus RTU / BACnet MS/TP)
The THVD1510DR is well-suited for industrial fieldbus nodes running Modbus RTU, Profibus DP, or BACnet MS/TP protocols. Its ±18kV IEC 61000-4-2 ESD protection eliminates external TVS diodes required by legacy designs, while the ±25V common-mode range tolerates ground-potential differences across large factory floors. The 1/8 unit-load rating supports up to 256 nodes on a single trunk, exceeding the 32-node limit of standard unit-load parts. Industrial temperature range (-40C to +125C) supports outdoor and unconditioned cabinet deployment. Placed between the MCU UART and the twisted-pair trunk with 120 ohm termination at both ends, the THVD1510DR enables reliable sub-10 Mbps deterministic communication across motor-control centers and process plants. The true fail-safe receiver guarantees a defined logic-high output when the bus is shorted or idle, eliminating external bias resistors and simplifying fieldbus node design.
推荐
Solar Inverter String Monitoring
The THVD1510DR serves as the RS-485 physical layer in PV string monitoring and inverter-to-data-logger communication links. Solar installations face severe electrostatic events from lightning-induced transients and human contact, where the integrated ±18kV IEC ESD rating simplifies surge-protection design and reduces BOM. The ±70V fault tolerance survives DC-injection events from PV array ground faults that can momentarily exceed the bus's standard -7V to +12V range. The 5V supply aligns with the inverter's auxiliary power rail, eliminating level translators. Operating at up to 10 Mbps, the THVD1510DR comfortably handles aggregated inverter telemetry packets across hundreds of meters of outdoor cable. Compared to a discrete opto-coupled solution, the THVD1510DR reduces board area by half while improving reliability - critical for solar installations where maintenance access is limited and field failure costs are high.
推荐
EV Charging Station Communication
In EV charging station designs, the THVD1510DR handles the RS-485 link between charging controllers, RFID modules, smart meters, and back-office OCPP proxies. Charging stations operate in harsh environments with frequent human contact and switching transients from relay coils and power converters, where ±18kV IEC ESD directly meets IEC 61851-1 compliance requirements. The wide -40C to +125C operating range accommodates outdoor cabinets exposed to direct sunlight and winter cold. The half-duplex 1/1 configuration minimizes wire count on the charging-cable harness while supporting DC fast-charging cluster topologies. Place the THVD1510DR between the controller MCU's UART and the bus with proper common-mode chokes for conducted emissions. The 256-node capability enables large charging-depot deployments with multiple dispensers networked on a single RS-485 backbone.
推荐
Smart Meter AMI Concentrator
The THVD1510DR is ideal for AMI (Advanced Metering Infrastructure) concentrators that aggregate hundreds of smart-meter endpoints over RS-485. Its 1/8 unit-load rating supports up to 256 nodes per bus, matching AMI concentrator designs that fan out to entire neighborhoods or building risers. The integrated ±18kV ESD and ±70V fault tolerance survive the ground-potential and transient events common in utility metering installations. The 10 Mbps signaling rate handles aggregated DLMS/COSEM or ANSI C12.18/19 traffic without bottlenecking. The 5V supply operates from the concentrator's auxiliary rail, simplifying power architecture. The receiver's true fail-safe topology eliminates external bias resistors on the trunk, reducing field-installation cost and improving reliability. Industrial temperature rating supports outdoor meter-cabinet deployment.
推荐
HVAC and Building Automation Controllers
The THVD1510DR supports BACnet MS/TP, LonWorks, and Modbus RTU communications inside HVAC controllers, VAV boxes, and building-automation panels. Building-automation networks frequently extend across long cable runs with significant ground-potential differences, where the THVD1510DR's ±25V common-mode range and ±70V fault tolerance provide robust noise immunity. The integrated ±18kV ESD rating protects against installer-handling transients, eliminating external protection components. The half-duplex 1/1 configuration minimizes wiring cost inside VAV boxes and damper actuators. Compared to legacy RS-485 transceivers without modern ESD, the THVD1510DR reduces field failures from electrostatic discharge during commissioning and service. Operating at up to 10 Mbps, it supports both low-speed BACnet MS/TP (76.8 kbps) and higher-speed proprietary HVAC protocols without changing hardware.
推荐
Motor Drive and Servo Communication
In industrial servo drives and variable-frequency motor controllers, the THVD1510DR serves as the differential RS-485 interface for command feedback, encoder data, and parameter tuning. Motor-drive environments feature high common-mode noise from PWM edges and IGBT switching - the THVD1510DR's ±25V common-mode range rejects this noise effectively. The ±18kV IEC ESD rating survives handling during installation and service. The receiver's true fail-safe topology prevents undefined logic states during cable hot-plug events common when motor drives are replaced in energized cabinets. Used between the drive's UART and the factory backbone, the THVD1510DR enables reliable EtherCAT-to-RS-485 gateway and PROFINET-to-RS-485 bridge designs. Compared to opto-coupled RS-485 solutions, the THVD1510DR delivers superior noise immunity while reducing BOM by 4-6 components per node.
推荐
Point-of-Sale (POS) and Kiosk Networks
The THVD1510DR connects POS terminals, payment kiosks, receipt printers, and kitchen display systems over RS-485 in retail and QSR environments. Retail networks demand small footprint and high reliability - the SOIC-8 package integrates a complete transceiver with ±18kV ESD in the same area as older discrete designs. The half-duplex 1/1 configuration supports multi-drop kitchen display networks where multiple terminals share a single twisted-pair bus. Operating at 5V aligns with the POS's main logic supply. Compared to legacy MAX485-based POS networks, the THVD1510DR's higher ESD tolerance reduces field failures from static discharge caused by frequent customer contact with kiosks and payment terminals. The 10 Mbps rate supports both legacy 115.2 kbps traffic and faster encrypted payment-side communications.
推荐
Security and Access Control Panels
The THVD1510DR provides the RS-485 interface in access-control panels that network door controllers, card readers, and alarm sensors across building risers. Access-control networks must operate reliably in electrically noisy environments with elevator motors, HVAC systems, and frequent lightning transients - the THVD1510DR's ±18kV IEC ESD and ±25V common-mode range provide robust noise immunity. The wide -40C to +125C operating range supports outdoor and rooftop installations. The 1/8 unit-load rating supports up to 256 door controllers per panel, enabling large enterprise access-control deployments. Compared to legacy RS-485 designs with discrete TVS arrays, the THVD1510DR reduces BOM and board area while improving surge immunity, lowering total panel cost.
推荐
推荐产品汇总
工程参考数据： THVD1510DR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | THVD1550DR | THVD1551DR | MAX485ESA+ | SP485EEN | ADM485ARZ | ISL3179AEFRZ |
|---|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices | MaxLinear | Analog Devices | Renesas Electronics |
| Package | SOIC-8 | SOIC-8 (same) | SOIC-8 (same) | SOIC-8 (same) | SOIC-8 (same) | SOIC-8 (same) | SOIC-8 (same) |
| Supply Voltage | 4.5V to 5.5V | 4.5V to 5.5V | 4.5V to 5.5V | 5V (4.75V to 5.25V) | 5V (4.75V to 5.25V) | 5V (4.75V to 5.25V) | 3.0V to 3.6V (3.3V variant) / 5V tolerant |
| Signaling Rate | 10 Mbps | 10 Mbps | 1 Mbps (lower-power) | 2.5 Mbps | 10 Mbps | 2.5 Mbps | 10 Mbps |
| Common-Mode Range | ±25 V | ±25 V | ±25 V | -7V to +12V | -7V to +12V | -7V to +12V | ±15 V |
| Unit Load | 1/8 UL (256 nodes) | 1/8 UL (256 nodes) | 1/8 UL (256 nodes) | 1 UL (32 nodes) | 1 UL (32 nodes) | 1 UL (32 nodes) | 1/8 UL (256 nodes) |
| Configuration | Half-Duplex 1/1 | Half-Duplex 1/1 | Half-Duplex 1/1 | Half-Duplex 1/1 | Half-Duplex 1/1 | Half-Duplex 1/1 | Half-Duplex 1/1 |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | 0C to +70C | -40C to +85C | -40C to +85C | -40C to +85C |
关键差异点
- Highest integrated ESD protection in class （对比 MAX485ESA+, SP485EEN)
- 1/8 unit load enables 256-node bus configurations （对比 MAX485ESA+ (1 UL = 32 nodes))
- Extended common-mode range tolerates ground-potential differences （对比 MAX485ESA+, ADM485ARZ (standard -7V to +12V))
- Industrial temperature range （对比 MAX485ESA+ (0C to +70C commercial))
设计说明
Place a 100nF decoupling capacitor within 5mm of the VCC pin (pin 8) and a bulk capacitor rated for worst-case inrush on the supply rail. Route the A/Y and B/Z differential traces as a 100 ohm differential microstrip with matched length, keeping stubs below 30mm at 10 Mbps. Use a ground plane under the bus traces for return-path integrity, and place 120 ohm termination resistors at both ends of the bus only - never at intermediate nodes - to prevent reflections. Keep the THVD1510DR's GND pin (pin 5) connected directly to the ground plane with a short, low-impedance via.
Do not assume the receiver's fail-safe output replaces bus bias resistors when the bus has multiple transceivers actively driving - in long multi-drop trunks with all drivers disabled, internal fail-safe may not overcome excessive leakage. For 256-node configurations, calculate total bus capacitance (cable + node capacitance) stays below the datasheet 1/8 unit-load budget. Avoid mixing unit-load ratings (e.g. 1/8 UL and 1 UL nodes on the same bus) - mismatched unit-load resistors cause signal-integrity problems.
For IEC 61851-1 (EV charging) or EN 55032 (ITE) compliance, add a common-mode choke and Y-rated safety capacitors at the bus connector. The integrated ±18kV IEC ESD simplifies surge design, but radiated emissions from fast edges on DI/DE/RE logic lines require series ferrite beads if the MCU is more than 50mm from the transceiver. Twist A/Y and B/Z wires together at minimum 12 turns per meter to reject common-mode noise from adjacent power cables.
Separate the digital ground (GND pin 5) from the chassis ground near the bus connector using a single-point connection to avoid ground loops. Keep the THVD1510DR's analog section (bus pins) at least 5mm away from switching power components and IGBTs to minimize common-mode pickup. Use guard rings or stitching vias around the bus traces to improve ESD current return paths.
合规信息
RoHS compliant per TI product page. The THVD1510DR does not carry AEC-Q100 qualification - choose THVD1555-Q1 or similar if automotive qualification is required. IEC 61000-4-2 ±18kV ESD protection is integrated on bus pins.
