component
UCC28056DBVR
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, SOT-23-6. Pinout cross-checked by two models against the datasheet, 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
markdownUCC28056DBVR
Texas Instruments · AC-DC Controllers And Regulators · SOT-23-6
UCC28056DBVR from Texas Instruments, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VOSNS | input | Voltage error amplifier inverting input; over-voltage protection halts switching if voltage exceeds VOvp1Rise and resumes when voltage drops below VOvp1Fall. |
| 2 | ZCD/CS | input | Zero-crossing detection and current sense input; monitors current sense resistor voltage when DRV is high and drain voltage waveform when DRV is low, enables over-current protection, valley synchronization, and second-level output over-voltage protection. |
| 3 | VCC | power_in | Positive supply voltage input; switching starts when VCC exceeds VCCStart and stops when VCC drops below VCCStop for longer than TUVLOBlk. |
| 4 | GND | power_in | Controller ground reference; connect to power stage at the lower terminal of current sense resistor RCS only. |
| 5 | DRV | bidirectional | Gate drive output with internal voltage limit VDRHigh; external resistor from DRV to GND adjusts delay between drain voltage falling and DRV rising edge for valley-synchronized turn-on. |
| 6 | COMP | bidirectional | Error amplifier output and power demand input with internal voltage limit VCOClmp, internally discharged in stop or over-voltage states, with switching control via VBSTFall and VBSTRise thresholds. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
UCC28056DBVR - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
ucc28056dbvr-etched.step/ucc28056dbvr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc28056dbvr.step/ucc28056dbvr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (55 pp, sha256
88bddd312c898620, retrieved 2026-10-06, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(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).