STNRG012

Overview

The STNRG012 is a digital combo multi-mode PFC and time-shift LLC resonant half-bridge controller designed for AC and DC input lines. It integrates a Transition-Mode/DCM PFC controller, a high-voltage double-ended LLC controller, an 800 V-rated start-up generator, and a sophisticated digital engine managed by an 8-bit core with SMED peripherals. The device supports input voltages up to 305 VAC and operates within a junction temperature range of -40°C to 150°C. It utilizes a 20-SOIC package and features a 15 MHz switching frequency capability.

Feature Summary

• Integrates multi-mode PFC and time-shift LLC resonant half-bridge controllers with an onboard 800 V start-up circuit.
• Supports both AC and DC input line management with enhanced fixed-on-time control and THD optimization.
• Features an 8-bit digital core with SMED peripherals for optimized algorithms and robust performance.
• Allows external communication via a 2-pin UART for monitoring, black box storage, and software patch uploads.

Applications

• Power-factor-corrected high-efficiency converters
• Professional lighting systems
• Converters complying with stringent energy saving regulations

Procurement Notes

Verify the specific ordering suffix (e.g., TR) to confirm tape-and-reel packaging details. Ensure compatibility with the required 20-SOIC footprint and validate that the 800 V start-up voltage rating meets the target application's line sense requirements. Confirm RoHS3 compliance status during final component selection.

Selection Notes

Select this component when designing converters requiring simultaneous PFC and LLC control in a single IC. It is suitable for applications needing wide configurability through NVM storage and external flash communication. Consider the 20-pin SO package constraints and the need for an 8-bit digital engine managing complex power topologies.

Part Context

The STNRG012 belongs to STMicroelectronics' specialized digital power management portfolio. It is part of a series of advanced controllers designed to replace discrete analog solutions, offering BOM optimization and enhanced reliability through integrated digital algorithms and hardware IPs.

Replacement Considerations

STNRG011TR is a related model featuring similar digital combo capabilities but may differ in specific protection enhancements or configuration options. Verify functional equivalence regarding the time-shift LLC control and PFC modes before substitution.

FAQ

Does the STNRG012 support both AC and DC inputs?

Yes, the device is designed to manage both AC and DC input lines effectively.

What type of start-up circuit is integrated into the STNRG012?

It includes an onboard 800 V-rated start-up generator with line sensing capabilities.