Overview
The ST7590TR is a power line communication (PLC) System-on-Chip (SoC) designed by STMicroelectronics. It is specifically tailored for power line networking applications and supports the PRIME (Powerline Related Intelligent Metering Evolution) protocol. The device is part of the EVALKITST7590-Q1 reference design, which includes an STM32 microcontroller for comprehensive system development and evaluation.
Key Specifications
| Parameter | Value |
|---|---|
| ECCN US | EAR99 |
| ECCN EU | NEC |
| Packing Type | Tape And Reel |
| RoHs compliant | Ecopack2 |
| Grade | Industrial |
| Package Name | QFN48 with exposed pad |
| Operating Temperature | -40°C to 85°C |
| Supply Voltage | Single supply voltage (details in reference design) |
Key Features
- Supports PRIME protocol for power line communication.
- Integrated line driver and power line coupling circuit.
- Includes an internal oscillator circuit and requires a quartz crystal with specific tolerances.
- Features a built-in thermal shutdown circuitry to protect against overheating.
- Compliant with EN50065-7 and FCC part 15 regulations.
- Equipped with an STM32 microcontroller for comprehensive system development and evaluation.
- Includes protection devices such as input varistor (MOV) and protection diodes for safety and robustness.
Applications
The ST7590TR is designed for various power line communication network applications, including:
- Smart metering and grid management.
- Home automation and IoT devices.
- Industrial control and monitoring systems.
- Residential, commercial, and light industrial locations.
Q & A
- Q: What is the primary protocol supported by the ST7590TR?
A: The ST7590TR supports the PRIME (Powerline Related Intelligent Metering Evolution) protocol.
- Q: Can the ST7590TR be used on medium or high voltage AC lines?
A: Yes, provided that a suitable coupling interface ensures adequate and safe isolation from the AC line.
- Q: Can the ST7590TR communicate over DC or de-energized lines?
A: Yes, given that a suitable coupling circuit is used to connect the device to the line.
- Q: Does the ST7590TR reference design meet FCC part 15 specifications?
A: Yes, the EN normative compliance intrinsically guarantees compliance with FCC part 15 regulations.
- Q: What are the key components of the EVALKITST7590-Q1 reference design?
A: The EVALKITST7590-Q1 includes the ST7590 device, an STM32 microcontroller, and various support components for a complete evaluation environment.
- Q: How does the ST7590TR handle thermal management?
A: The device features a built-in thermal shutdown circuitry and is packaged in a QFN48 with an exposed pad for improved thermal performance.
- Q: What are the critical points for the line coupling circuit in the ST7590TR design?
A: The line coupling circuit must ensure high impedance in receiving mode and low impedance in transmitting mode within the signal bandwidth, and it must comply with EN50065-7 requirements.
- Q: How does the ST7590TR protect against high voltage disturbances?
A: The design includes protection devices such as input varistor (MOV) and protection diodes to prevent damage from high energy disturbances.
- Q: What is the significance of the oscillator section in the ST7590TR design?
A: The oscillator section requires a quartz crystal with specific tolerances and must be shielded from noise sources to ensure stable operation.
- Q: What are the power supply requirements for the ST7590TR reference design?
A: The power supply must be designed to minimize noise injected on the line and ensure proper input impedance, with a quasi-resonant switching mode power supply recommended.
