component
STNRG012TR
Public Made by Adomby adom
STMicroelectronics AC-DC Controllers And Regulators, SOIC-20-300mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSTNRG012TR
STMicroelectronics · AC-DC Controllers And Regulators · SOIC-20-300mil
STNRG012TR from STMicroelectronics, in a SOIC-20-300mil. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | BOOT | power_in | High-side gate-drive floating supply voltage connected to bootstrap capacitor between this pin and FGND, voltage range -0.3 to 600 + VCC V. |
| 2 | HVG | output | High-side gate-drive output capable of 0.5 A source and 0.75 A sink peak current (minimum values) to drive upper MOSFET of half-bridge leg. |
| 3 | FGND | power_in | High-side gate-drive floating ground serving as return path for high-side gate-drive current with internal resistor to ensure pin is never floating. |
| 4 | N.C. | unconnected | No internal connection, high-voltage spacer to isolate high-voltage section and ease compliance with safety regulations for creepage distance. |
| 5 | LVG | output | Low-side gate-drive output capable of 0.5 A source and 0.75 A sink peak current (minimum values) to drive lower MOSFET of half-bridge leg, actively pulled to GND during UVLO. |
| 6 | TX | output | UART/I2C interface transmit pin, voltage range -0.3V to VCORE+0.3 V for serial communication with external digital device. |
| 7 | RX | input | UART/I2C interface receive pin, voltage range -0.3V to VCORE+0.3 V for serial communication with external digital device. |
| 8 | LLC_CS | input | LLC tank current sensing input for voltage proportional to tank current (0-500 mV range) used for zero-crossing detection and first and second level OCP. |
| 9 | LLC_AUX | input | LLC auxiliary voltage input connected to divider sensing auxiliary voltage from LLC transformer winding, used for LLC OVP detection at 2.5 V threshold and external burst-mode control at 0.9 V. |
| 10 | LLC_FB | input | LLC feedback voltage input connected to optocoupler collector with pull-up resistor to VCORE, used for LLC feedback loop closure and burst/shutdown comparators. |
| 11 | PFC_ZCD | input | PFC zero-crossing detection input connected to PFC AUX winding through resistor divider detecting PFC inductor demagnetization for soft switching control. |
| 12 | PFC_CS | input | PFC current sense input for MOSFET current monitored through sense resistor, used for enhanced COT control with 125 mV ramp, 500 mV OCP1 threshold, and 900 mV OCP2 threshold. |
| 13 | PFC_FB | input | PFC output voltage feedback input connected to bulk capacitor divider for PFC loop closure and OVP protection at 2.33 V fixed threshold. |
| 14 | VCORE | power_in | Internal VCORE bypass capacitor connection point for analog and digital circuitry supply from internal LDO, operating range 4.75 to 5.25 V. |
| 15 | SGND | power_in | Signal ground serving as reference ground for analog signals and IC signal processing circuits. |
| 16 | PGND | power_in | Power ground serving as current return for PFC gate-driver and low-side gate-driver of half-bridge, keep separate from bias component grounding. |
| 17 | PFC_GD | output | PFC gate-driver output capable of 0.7 A source and 0.8 A sink current (minimum values) to drive power MOSFETs for PFC control. |
| 18 | VCC | power_in | Supply voltage for signal part and gate-drivers with bypass capacitor to GND, operating range 9.5 to 19 V with internal clamp voltage of 19 V. |
| 19 | N.C. | unconnected | No internal connection, high-voltage spacer to isolate high-voltage section and ease compliance with safety regulations for creepage distance. |
| 20 | VAC | input | High-voltage startup generator input connected directly to mains voltage through two diodes, voltage range -1 to 800 V, with internal 20 MΩ resistor divider for line voltage sensing, brownout detection, and synchronization. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOIC-20-300mil |
| Category | Power Management (PMIC) |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
STNRG012TR - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
stnrg012tr-etched.step/stnrg012tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stnrg012tr.step/stnrg012tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (34 pp, sha256
58802d8b534056a7, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).