Overview
The STNRG011, produced by STMicroelectronics, is a digital combo multi-mode Power Factor Correction (PFC) and time-shift LLC resonant half-bridge controller. This device integrates a multi-mode (transition-mode and DCM) PFC controller, a high-voltage double-ended controller for the LLC resonant half-bridge, an 800 V-rated startup generator, and a sophisticated digital engine. It is designed to manage the optimal operation of these blocks, ensuring high performance, BOM optimization, and robustness. The STNRG011 comes in a 20-pin SO package and is tailored for power-factor-corrected high-efficiency converters that comply with stringent energy-saving regulations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VAC Voltage Range | -1 to 800 | V |
| BOOT Floating Supply Voltage | -0.3 to VCORE + 0.3 | V |
| TX Voltage Range | -0.3 to VCORE + 0.3 | V |
| RX Voltage Range | -0.3 to VCORE + 0.3 | V |
| Junction Temperature Operating Range | -40 to 150 | °C |
| Storage Temperature | -55 to 150 | °C |
| Package | SO-20 | |
| RoHS Compliance Grade | Ecopack2 | |
| Operating Temperature (°C) | -40 to 150 | °C |
Key Features
- Digital combo multi-mode PFC + time-shift LLC resonant half-bridge controller
- Onboard 800 V startup circuit, line sense, and X-cap discharge compliant with IEC 62368-1, for reduced standby power
- Enhanced fixed on time multi-mode TM PFC controller with input voltage feed-forward, THD optimizer, and frequency limitation
- Complete set of PFC protections
- Time-shift control of resonant half-bridge
- Enhanced burst-mode at light load with fast transient response and line adaptive half-bridge brown-out protection
- Complete set of half-bridge protections
- Available in SO20 package
- External communication through a 2-pin UART for monitoring, black box storing, and software patch upload
Applications
- Open frame SMPS
- Flat screen TV SMPS
- ATX power supply
- AC-DC adapter
Q & A
- What is the primary function of the STNRG011?
The STNRG011 is a digital combo multi-mode PFC and time-shift LLC resonant half-bridge controller, designed for power-factor-corrected high-efficiency converters.
- What package type is the STNRG011 available in?
The STNRG011 is available in a 20-pin SO package.
- What are the key protections offered by the STNRG011?
The device offers a complete set of PFC protections and half-bridge protections, including overvoltage protection, brown-out protection, and surge detection.
- How does the STNRG011 manage its power system and control algorithms?
The power system and control algorithms are managed by an 8-bit core with dedicated fast peripherals (SMED) and optimized digital algorithms along with HW analog IPs.
- What is the purpose of the onboard 800 V startup circuit?
The onboard 800 V startup circuit is for reduced standby power and complies with IEC 62368-1, including line sense and X-cap discharge functions.
- How does the STNRG011 communicate externally?
The device can communicate externally through a 2-pin UART, allowing for monitoring, black box storing, and software patch upload from an external E2PROM.
- What are some typical applications of the STNRG011?
Typical applications include open frame SMPS, flat screen TV SMPS, ATX power supply, and AC-DC adapters.
- What is the junction temperature operating range of the STNRG011?
The junction temperature operating range is -40 to 150 °C.
- Is the STNRG011 RoHS compliant?
Yes, the STNRG011 is RoHS compliant with an Ecopack2 grade.
- How does the STNRG011 optimize its performance and robustness?
The device uses optimized digital algorithms along with HW analog IPs and an 8-bit core with dedicated fast peripherals (SMED) to ensure high performance, BOM optimization, and robustness.
