ADM2587EBRWZ:Types of Protection Circuitry, Thermal Management Designs, and Alternative Models

By Analog Devices Inc. 270

ADM2587EBRWZ:Types of Protection Circuitry, Thermal Management Designs, and Alternative Models

ADM2587EBRWZ is a fully integrated independent data transceiver module that can achieve ±15 kV ESD protection and is suitable for high-speed communication on multi-point transmission lines. The ADM2582E/ADM2587E include an integrated isolated DC-DC power supply, eliminating the need for external DC/DC isolation modules.

ADM2587EBRWZ is a high-performance isolated RS-485/RS-422 transceiver chip, also known as "maglev train chip". This chip uses ADI's iCoupler technology to integrate a three-channel isolator, a three-state differential line driver, a differential input receiver and an isoPower DC/DC converter in a single package. Therefore, it does not require external DC/DC isolation modules, enabling a fully integrated signal and power isolated RS-485 solution.

The ADM2587EBRWZ has a variety of powerful features, such as supporting data transfer rates up to 50Mbps, automatic bidirectional flow control, independent driver outputs, protective thermal shutdown, and immunity to high noise. In addition, this chip also has ±15 kVESD protection function to prevent damage to equipment caused by electrostatic discharge.


Ⅰ.Specifications of ADM2587EBRWZ


•Number of channels:3
•Number of pins:20
•Status:Active
•Length:13 mm
•Width:7.6 mm
•Height:2.35 mm
•Humidity Sensitivity:Yes
•Power supply type:Single
•Data rate:500 kb/s
•REACH Compliant:Yes
•EU RoHS Compliant:Yes
•China RoHS Compliant:Yes
•Product Category:Digital Isolator
•Installation style:SMD/SMT
•Package/Case:SOIC-20
•Number of channels:2 Channel
•Polarity:Unidirectional
•Operating power supply voltage:5 V
•Supply voltage-Minimum:3 V
•Supply voltage-Max:5.5 V
•Propagation delay time:200 ns
•Insulation voltage:2500 Vrms
•Operating power supply current:125 mA
•Minimum operating temperature:-40℃
•Maximum operating temperature:+85℃
•Supported protocol:RS-485
•Shutdown:No Shutdown
•Interface IC type:line transceiver
•Product Type:Digital Isolators
•Isolation type:Magnetic Coupling
•Type:RS-485 Isolated Transceiver

 

Ⅱ.Features of ADM2587EBRWZ


•Thermal shutdown protection

•Easy configuration via jumper connections

•Test points available for measuring all signals

•500kbps data rate

•High common mode transient immunity: >25kV/μs

•The bus supports connections to up to 256 nodes

•Open and short circuit fault protected receiver inputs

•ADM2587E data rate: 500 kbps

•RS485 input/output pins provide ±15 kV ESD protection

•isoPower™ integrated isolated DC/DC converter

•Isolated RS-485/RS-422 transceiver, configurable for half-duplex or full-duplex

•Complies with ANSI/TIA/EIA RS-485-A-98 and ISO 8482:1987(E) standards

•Has low power consumption characteristics, which can reduce power consumption in standby mode and improve system energy efficiency

•Adopts anti-interference design, which can effectively resist electromagnetic interference and noise, ensuring the stability and reliability of data transmission


Ⅲ.Types of ADM2587EBRWZ protection circuit


1.ESD (electrostatic discharge) protection: ADM2587EBRWZ usually integrates an ESD protection circuit to prevent damage to the chip from external electrostatic discharge. This can be achieved by transferring the energy of electrostatic discharge to ground.

2.Short circuit protection: When a short circuit occurs at the output end, the short circuit protection circuit will quickly cut off the power supply to prevent the short circuit current from causing damage to the chip and peripheral circuits.

3.Reverse voltage protection: When the power supply is connected to reverse voltage, the reverse voltage protection circuit will immediately cut off the power supply to prevent the reverse voltage from causing damage to the chip.

4.Overvoltage protection: The overvoltage protection circuit will monitor whether the input voltage exceeds the set range. Once it exceeds, the circuit will be cut off to protect the chip and connected devices from damage.

5.Overcurrent protection: The overcurrent protection circuit can monitor whether the output current exceeds the set range, and cuts off the output circuit when it exceeds to prevent damage to the equipment by the current.

6.Short circuit protection: The short circuit protection circuit can detect the short circuit condition of the output port and take measures, such as reducing the output power or cutting off the output, to avoid damage to the equipment due to excessive current.

7.Overheating protection: When the internal temperature of the chip exceeds the safe range, the overheating protection circuit will reduce the working frequency of the chip or shut down the chip to prevent performance degradation or damage caused by overheating.

8.Over-temperature protection: The over-temperature protection circuit can monitor the temperature of the chip. When the temperature exceeds the safe range, the protection mechanism will be triggered, such as reducing the output power or stopping the chip to prevent the chip from being damaged by overheating.

 

Ⅳ.Functional Block Diagram of ADM2587EBRWZ

 

Ⅴ.Example Circuit Diagram Using the ADM2587EBRWZ

 

Ⅵ.Thermal management design of ADM2587EBRWZ


1.Thermal heat dissipation design: The chip itself is designed with an effective heat dissipation structure, which usually includes designing a heat sink or other heat dissipation structure at the bottom of the chip to increase the heat dissipation surface area and improve heat conduction and scattering capabilities.

2.Thermal management algorithm: A thermal management algorithm may be integrated inside the chip to dynamically adjust the working parameters of the chip based on real-time temperature data and working status to achieve the best thermal management effect and ensure the stability of the chip under high-performance working conditions. performance and reliability.

3.Internal temperature monitoring: A temperature sensor or temperature monitoring circuit is usually integrated inside the chip to monitor the temperature of the chip in real time. When the temperature exceeds a set threshold, the chip can take protective measures, such as reducing output power or stopping work, to prevent overheating damage.

4.Optimize power consumption design: During design, the chip will try to optimize the power consumption structure to reduce power consumption and heat generation. This includes adopting low-power design, optimizing circuit structure and process flow, etc.

5.Good PCB layout and heat dissipation design: During the PCB design stage, good layout and heat dissipation design can effectively conduct heat to the PCB surface and scatter heat to the surrounding environment through the heat dissipation structure, thereby improving the overall thermal management effect. 

 

Ⅶ.Application fields of ADM2587EBRWZ


1.Communication equipment: ADM2587EBRWZ can be used for data transmission between communication base stations, optical fiber communication equipment and network equipment.

•In communication base stations, ADM2587EBRWZ can achieve high-speed and stable data transmission between the base station and the core network, ensuring the continuity and quality of communication services. Its high integration and low power consumption help reduce base station energy consumption and maintenance costs and improve overall operational efficiency.

•In optical fiber communication equipment, ADM2587EBRWZ can realize conversion and isolation between optical signals and electrical signals to ensure accurate transmission of data in optical fiber networks. Its excellent anti-interference ability and temperature stability enable it to maintain stable performance even in harsh working environments, ensuring the stability and reliability of communication.

2.Medical equipment: ADM2587EBRWZ can be used for data transmission between medical equipment, such as medical monitoring equipment, medical imaging equipment, etc.

•In medical monitoring equipment, ADM2587EBRWZ can realize real-time collection, transmission and display of patient physiological parameters (such as electrocardiogram, blood pressure, blood oxygen saturation, etc.). Its high-speed and stable data transmission capabilities can ensure that doctors or nurses can obtain patients' physiological information in time to make accurate diagnosis and treatment decisions.

•In medical imaging equipment, ADM2587EBRWZ can be used to realize the transmission and sharing of image data. For example, in departments such as radiology and ultrasound departments, doctors need to obtain patients' medical imaging data through imaging equipment in order to diagnose diseases and formulate treatment plans. ADM2587EBRWZ can provide high-speed and stable data transmission to ensure the accuracy and integrity of image data.

3.Traffic system: ADM2587EBRWZ can be used in traffic signal control systems, intelligent traffic management systems, etc. to realize data communication between traffic signals, street lights and monitoring equipment.

•In traffic signal control systems, ADM2587EBRWZ can realize real-time data communication between traffic lights, cameras, sensors and other equipment. Through high-speed and stable data transmission, the traffic management center can obtain real-time traffic flow, road conditions and other information, thereby promptly adjusting the timing of traffic lights, optimizing traffic flow, and improving road traffic efficiency.

•In intelligent traffic management systems, ADM2587EBRWZ can be used to implement communication between vehicles and road infrastructure. For example, through the communication between the OBU (on-board unit) on the vehicle and the RSU (roadside unit) on the road, functions such as vehicle identity recognition, driving trajectory recording, and real-time traffic query can be realized to provide drivers with accurate traffic information. information to improve road safety and driving experience.

4.Agricultural automation: In the agricultural field, ADM2587EBRWZ can be used for data communication between agricultural automation equipment, sensors and controllers to achieve monitoring and control of agricultural production processes. In agricultural automation equipment, ADM2587EBRWZ can be used as the core component of data communication to realize real-time data transmission between equipment and the reception and execution of control instructions. For example, in an irrigation system, sensors can monitor soil moisture, temperature and other information in real time, and transmit these data to the controller through the ADM2587EBRWZ. The controller intelligently adjusts the irrigation strategy based on the received data to ensure that crops receive the appropriate amount of water supply.

5.Energy management: In the field of energy management, ADM2587EBRWZ can be used in smart grid, wind power generation, solar power generation and other systems to achieve accurate data transmission and isolation and improve the efficiency and reliability of energy management.

•In smart grids, ADM2587EBRWZ can be used to implement data transmission and communication between meters, sensors, transformers and other equipment. Due to its excellent isolation performance, it can ensure the accuracy and security of data during transmission and prevent electrical noise and interference from affecting data transmission. At the same time, its high-speed and stable data transmission capabilities allow power grid managers to monitor the operating status of the power grid in real time, discover and deal with potential problems in a timely manner, thereby improving the operating efficiency and stability of the power grid.

•In wind power and solar power systems, ADM2587EBRWZ can be used to achieve data communication between generator sets, inverters, battery energy storage systems and other equipment. By transmitting data accurately and quickly, the system can monitor the operating status of power generation equipment in real time and intelligently control and manage it, thereby improving energy utilization efficiency and the reliability of the power generation system. In addition, ADM2587EBRWZ also supports remote monitoring and control functions, allowing energy managers to access and control the power generation system anytime and anywhere, improving management convenience and flexibility.

6.Industrial automation: In the field of industrial automation, ADM2587EBRWZ can be used for communication between various sensors, actuators and controllers, realizing data transmission and isolation between devices, and improving the reliability and stability of the system.

7.Building automation: In building management systems, ADM2587EBRWZ can be used for data transmission between various sensors, controllers and monitoring equipment to realize the interconnection of various equipment within the building. The ADM2587EBRWZ provides excellent data communication capabilities, allowing various sensors, controllers and monitoring equipment in the building to exchange information in real time. Whether it is the monitoring of environmental parameters such as temperature, humidity, and lighting, or the operating status and fault information of the equipment, fast and accurate data transmission can be carried out through the ADM2587EBRWZ.

8.Power system monitoring: In the field of power system monitoring, ADM2587EBRWZ can be used to monitor various parameters of the power system, such as voltage, current, power, etc., to achieve real-time transmission and isolation of data, providing a strong guarantee for the stable operation of the power system. The high-precision data transmission capability of the ADM2587EBRWZ enables it to accurately capture and transmit data on key parameters such as voltage, current, and power. This data is critical for assessing the operating status of power systems, predicting potential failures, and optimizing energy management. By monitoring these data in real time, power system operators can understand the operating status of the system in a timely manner and make corresponding adjustments and maintenance.

 

Ⅷ.Replacement model of ADM2587EBRWZ


THVD1512DGSR
ISOW1412DFMR
ADM2582EBRWZ
ADM2563E
ADM2582EBRWZ-REEL7


Frequently Asked Questions


1.How does ADM2587EBRWZ ensure reliability in high-performance applications?
ADM2587EBRWZ ensures reliability in high-performance applications through features like overcurrent protection, thermal shutdown, ESD protection, and optimized power consumption design.


2.What are the advantages of using ADM2587EBRWZ in industrial automation applications?
In industrial automation applications, ADM2587EBRWZ offers robust communication capabilities, protection against harsh industrial environments, and compatibility with various industrial protocols, making it suitable for diverse automation tasks.


3.How does ADM2587EBRWZ contribute to energy management systems?
ADM2587EBRWZ facilitates data communication in energy management systems by enabling the transmission of energy consumption data between different components such as smart meters, monitoring devices, and control systems.


4.What is the role of ADM2587EBRWZ in the field of security monitoring?
In the field of security monitoring, the ADM2587EBRWZ isolated RS-485 transceiver plays a key role. It can be used for data transmission and communication connections between video surveillance equipment to ensure the stable operation of the surveillance system. Because it supports high-speed data transmission, real-time collection and processing of monitoring data can be achieved.

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