LNBH25PQR

The LNBH25PQR is an integrated circuit designed for use in satellite receiver applications, specifically for low noise block (LNB) power supply and control. Manufactured by STMicroelectronics, this device offers a compact solution for powering and controlling the LNB, which is essential for receiving satellite signals. It operates with a wide input voltage range and provides stabilized voltage outputs, ensuring reliable performance even in fluctuating conditions.
Key features include overcurrent protection, thermal shutdown, and low dropout voltage regulation. It also supports DiSEqC™ (Digital Satellite Equipment Control) protocols, allowing for flexible communication with the satellite dish components. The LNBH25PQR is typically used in set-top boxes, satellite modems, and other digital TV equipment that require efficient control and power delivery to the LNB.
The device's integration of multiple functions into a single package reduces the need for additional components, thus saving space and cost in the design of satellite receiving systems. Its robust construction ensures lasting performance, making it a popular choice in consumer electronics.

The LNBH25PQR is a satellite low-noise block (LNB) power supply and control IC. Equivalent products typically include other LNB supply and control ICs such as the TPS65251 from Texas Instruments, the LM2596 from Texas Instruments for step-down applications, and the SPX29300 from Exar. It's essential to check the specific requirements and features needed, such as output voltage, current capabilities, and additional functions like DiSEqC support, to ensure compatibility with your application.

The LNBH25PQR is a monolithic voltage regulator designed for satellite set-top boxes and similar applications. Its key features include:
1. Power Output: It provides a regulated output for powering LNBs (Low Noise Block converters) in satellite dishes, supporting both horizontal and vertical polarization.
2. Voltage Selection: Offers selectable output voltages, typically around 13 V and 18 V, to switch between polarizations.
3. I²C Interface: Includes an I²C interface for communication and control, allowing for easy integration and management.
4. Current Limiting and Protection: Features built-in overcurrent protection and over-temperature protection to prevent damage under fault conditions.
5. 22 kHz Tone Generator: Integrates a 22 kHz tone generator for DiSEqC (Digital Satellite Equipment Control) signal support, enabling control of satellite dish components.
6. High Efficiency: Designed for high efficiency with low power dissipation.
7. Diagnostic Features: Provides diagnostic capabilities for monitoring and managing operational status.
These features make the LNBH25PQR well-suited for modern satellite receiver applications, offering robust performance and reliable operation.

The LNBH25PQR is an integrated circuit designed for satellite set-top box applications, functioning as a dual LNB supply and control voltage regulator. It is typically used to power and control low-noise block converters (LNBs) in satellite dishes.
The LNBH25PQR comes in a 20-pin PowerSSO package. Here is a brief overview of its functions:
- Voltage Regulation: Provides selectable output voltages suitable for LNBs, typically 13V or 18V, depending on polarization requirements.
- Current Limiting: Offers overcurrent protection to safeguard the LNB and the IC itself.
- DiseqC™ 1.X and 2.X Compatibility: Supports DiSEqC (Digital Satellite Equipment Control) commands for bi-directional communication between the satellite receiver and LNB.
- Low Dropout Voltage: Ensures efficient power management with minimal voltage loss.
- Advanced Protections: Features over-temperature and over-voltage protection to enhance reliability and longevity.
These functions make the LNBH25PQR a robust solution for managing satellite dish LNBs in set-top box applications, ensuring efficient power delivery and communication.

The LNBH25PQR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a broad range of products, including semiconductor integrated circuits and discrete devices. They serve a variety of sectors, including automotive, industrial, personal electronics, communications equipment, and computers. The company is known for its expertise in developing cutting-edge technologies and providing solutions that address the needs of various applications and industries.

The LNBH25PQR is a voltage regulator and controller typically used in satellite set-top boxes and other satellite TV equipment. Its primary application is to power and control low-noise block downconverters (LNBs) in satellite dish systems. This component provides the necessary voltage and tone signals to switch between different frequency bands and polarizations in the LNB, facilitating signal reception. Additionally, it supports DiSEqC (Digital Satellite Equipment Control) communication, allowing for advanced control of multiple LNBs and switches in satellite systems. Its efficient power management and control features make it suitable for various satellite communication applications.

The LNBH25PQR is typically available in a QFN (Quad Flat No-Lead) package, which is a compact, surface-mount package type known for efficient heat dissipation and small footprint, making it ideal for space-constrained applications.