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TLC5971RGER
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Texas Instruments LED Drivers, VQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+61@@ -0,0 +1,61 @@+# TLC5971RGER++**Texas Instruments** · LED Drivers · VQFN-24-EP(4x4)++TLC5971RGER from Texas Instruments, in a VQFN-24-EP(4x4). 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 | SDTI | input | Serial data input for the 224-bit shift register; data present on SDTI are shifted into the LSB on the SCKI rising edge. |+| 2 | SCKI | input | Serial data shift clock input; the shift register shifts toward the MSB on each SCKI rising edge, and the SCKI signal is used for the SDTO timing. |+| 3 | NC | unconnected | No internal connection. |+| 4 | NC | unconnected | No internal connection. |+| 5 | SCKO | output | Serial data shift clock output; the SCKI input clock is adjusted to the timing of the SDTO data and output on this pin. |+| 6 | SDTO | output | Serial data output connected to the MSB of the 224-bit shift register; data are clocked out on the SCKI rising edge. |+| 7 | OUTR2 | output | Red constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 8 | OUTG2 | output | Green constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 9 | OUTB2 | output | Blue constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 10 | OUTR3 | output | Red constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 11 | OUTG3 | output | Green constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 12 | OUTB3 | output | Blue constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 13 | VCC | power_in | Power-supply terminal: 6 V to 17 V when the internal regulator is used, or 3 V to 5.5 V when VCC and VREG are tied together for direct supply. |+| 14 | NC | unconnected | No internal connection. |+| 15 | VREG | bidirectional | Internal 3.3-V linear regulator output that requires a 1-µF decoupling capacitor and supplies up to 25 mA (-25 mA regulator output current); it can instead be supplied with 3 V to 5.5 V by connecting it to VCC. |+| 16 | IREF | bidirectional | Maximum-current programming terminal: a resistor between IREF and GND sets the maximum constant current for every output, and connecting IREF directly to GND forces all outputs off. |+| 17 | NC | unconnected | No internal connection. |+| 18 | GND | power_in | Power ground terminal, which is also the exposed thermal pad of the VQFN package. |+| 19 | OUTR0 | output | Red constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 20 | OUTG0 | output | Green constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 21 | OUTB0 | output | Blue constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 22 | OUTR1 | output | Red constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 23 | OUTG1 | output | Green constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 24 | OUTB1 | output | Blue constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output. |+| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-24-EP(4x4) |+| Category | LED Drivers |+| Pins | 25 |++## CAD (KiCad official)++- Symbol: `TLC5971RGER`+- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm`+- 3D model: VQFN-24-EP(4x4) (KiCad packages3D, STEP)+- 3D model files: `tlc5971rger-etched.step` / `tlc5971rger-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tlc5971rger.step` / `tlc5971rger.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tlc5971) (47 pp, sha256 `9314545e14dcae46`, retrieved 2026-10-08, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).++[Datasheet PDF](docs/tlc5971rger-datasheet.pdf)
page.jsonadded+302@@ -0,0 +1,302 @@+{+ "slug": "tlc5971rger",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments LED Drivers, VQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "led drivers",+ "tlc5971rger",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tlc5971rger.kicad_sym",+ "tlc5971rger.kicad_mod",+ "tlc5971rger.glb",+ "tlc5971rger.step",+ "tlc5971rger.lbr",+ "docs/hero.png",+ "docs/tlc5971rger-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "tlc5971rger-hero.glb",+ "tlc5971rger-hero.overlay.json"+ ],+ "component": {+ "mpn": "TLC5971RGER",+ "manufacturer": "Texas Instruments",+ "package": "VQFN-24-EP(4x4)",+ "pin_count": 25,+ "category": "LED Drivers",+ "subcategory": "LED Drivers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/tlc5971",+ "parts": {+ "symbol": "tlc5971rger.kicad_sym",+ "footprint": "tlc5971rger.kicad_mod",+ "model_3d": "tlc5971rger-hero.glb",+ "model_3d_plain": "tlc5971rger.glb",+ "model_3d_step": "tlc5971rger-etched.step",+ "model_3d_step_plain": "tlc5971rger.step",+ "lbr": "tlc5971rger.lbr"+ },+ "distributor_links": {+ "lcsc": "C543004",+ "digikey": "296-28448-2-ND",+ "mouser": "595-TLC5971RGER"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T19:54:08Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-28448-2-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-TLC5971RGER",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "SDTI",+ "type": "input",+ "description": "Serial data input for the 224-bit shift register; data present on SDTI are shifted into the LSB on the SCKI rising edge."+ },+ {+ "number": "2",+ "name": "SCKI",+ "type": "input",+ "description": "Serial data shift clock input; the shift register shifts toward the MSB on each SCKI rising edge, and the SCKI signal is used for the SDTO timing."+ },+ {+ "number": "3",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection."+ },+ {+ "number": "4",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection."+ },+ {+ "number": "5",+ "name": "SCKO",+ "type": "output",+ "description": "Serial data shift clock output; the SCKI input clock is adjusted to the timing of the SDTO data and output on this pin."+ },+ {+ "number": "6",+ "name": "SDTO",+ "type": "output",+ "description": "Serial data output connected to the MSB of the 224-bit shift register; data are clocked out on the SCKI rising edge."+ },+ {+ "number": "7",+ "name": "OUTR2",+ "type": "output",+ "description": "Red constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "8",+ "name": "OUTG2",+ "type": "output",+ "description": "Green constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "9",+ "name": "OUTB2",+ "type": "output",+ "description": "Blue constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "10",+ "name": "OUTR3",+ "type": "output",+ "description": "Red constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "11",+ "name": "OUTG3",+ "type": "output",+ "description": "Green constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "12",+ "name": "OUTB3",+ "type": "output",+ "description": "Blue constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "13",+ "name": "VCC",+ "type": "power_in",+ "description": "Power-supply terminal: 6 V to 17 V when the internal regulator is used, or 3 V to 5.5 V when VCC and VREG are tied together for direct supply."+ },+ {+ "number": "14",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection."+ },+ {+ "number": "15",+ "name": "VREG",+ "type": "bidirectional",+ "description": "Internal 3.3-V linear regulator output that requires a 1-µF decoupling capacitor and supplies up to 25 mA (-25 mA regulator output current); it can instead be supplied with 3 V to 5.5 V by connecting it to VCC."+ },+ {+ "number": "16",+ "name": "IREF",+ "type": "bidirectional",+ "description": "Maximum-current programming terminal: a resistor between IREF and GND sets the maximum constant current for every output, and connecting IREF directly to GND forces all outputs off."+ },+ {+ "number": "17",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection."+ },+ {+ "number": "18",+ "name": "GND",+ "type": "power_in",+ "description": "Power ground terminal, which is also the exposed thermal pad of the VQFN package."+ },+ {+ "number": "19",+ "name": "OUTR0",+ "type": "output",+ "description": "Red constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "20",+ "name": "OUTG0",+ "type": "output",+ "description": "Green constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "21",+ "name": "OUTB0",+ "type": "output",+ "description": "Blue constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "22",+ "name": "OUTR1",+ "type": "output",+ "description": "Red constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "23",+ "name": "OUTG1",+ "type": "output",+ "description": "Green constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "24",+ "name": "OUTB1",+ "type": "output",+ "description": "Blue constant-current sink output (60 mA maximum constant current); outputs may be paralleled for more current and different voltages (up to 17 V) can be applied to each output."+ },+ {+ "number": "25",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Pin types for VREG and IREF are printed as I/O in the datasheet pin table; mapped to KiCad 'bidirect; The VQFN exposed thermal pad is not given a separate number; it is listed as GND on RGE pin 18 in th; Pin descriptions for the constant-current outputs combine the per-pin text with the 60 mA constant-c",+ "exposed pad 25 added from the footprint"+ ],+ "pages_sent": 9,+ "cost_usd": 0.0823,+ "at": "2026-10-08T19:53:29"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tlc5971",+ "pages": 47,+ "sha256": "9314545e14dcae46",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 25,+ "described": 25,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "tlc5971rger.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 4,+ 4,+ 0.77+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "f7d256794c4147daf24dcae0554fae18510315e565ad1e239b475be7fef80d8b",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "tlc5971rger-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 4,+ 4,+ 0.77+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d5a82c42b45b63574af4d1af53d71b2bcba6dba73f89af447aa9408e902f00e1",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}