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TLC5971PWPR
Public Made by Adomby adom
Texas Instruments LED Drivers, HTSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+57@@ -0,0 +1,57 @@+# TLC5971PWPR++**Texas Instruments** · LED Drivers · HTSSOP-20-EP++TLC5971PWPR from Texas Instruments, in a HTSSOP-20-EP. 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 | IREF | output | Maximum current programming terminal; external resistor (0.82 kΩ to 24.8 kΩ) connected to GND sets the maximum constant-current value for all output channels (60 mA to 2 mA). |+| 2 | GND | power_in | Power ground terminal and exposed thermal pad (bottom side). |+| 3 | OUTR0 | output | RED constant-current sink output channel 0; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 4 | OUTG0 | output | GREEN constant-current sink output channel 0; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 5 | OUTB0 | output | BLUE constant-current sink output channel 0; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 6 | OUTR1 | output | RED constant-current sink output channel 1; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 7 | OUTG1 | output | GREEN constant-current sink output channel 1; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 8 | OUTB1 | output | BLUE constant-current sink output channel 1; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 9 | SDTI | input | Serial data input for 224-bit shift register; data shifted on SCKI rising edge with 5 ns setup time and 3 ns hold time. |+| 10 | SCKI | input | Serial data shift clock input; maximum frequency 20 MHz; 10 ns minimum pulse duration; data shifted toward MSB at each SCKI rising edge. |+| 11 | SCKO | output | Serial data shift clock output; adjusted timing of SCKI for synchronization of cascaded devices; output voltage range 0 V to VREG. |+| 12 | SDTO | output | Serial data output of 224-bit shift register; connected to MSB; data clocked out at SCKI rising edge; output voltage range 0 V to VREG. |+| 13 | OUTR2 | output | RED constant-current sink output channel 2; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 14 | OUTG2 | output | GREEN constant-current sink output channel 2; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 15 | OUTB2 | output | BLUE constant-current sink output channel 2; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 16 | OUTR3 | output | RED constant-current sink output channel 3; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 17 | OUTG3 | output | GREEN constant-current sink output channel 3; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 18 | OUTB3 | output | BLUE constant-current sink output channel 3; individual 16-bit PWM grayscale control; maximum 60 mA per channel. |+| 19 | VCC | power_in | Power supply input; 6 V to 17 V for internal linear regulator mode or 3 V to 5.5 V for direct power supply mode. |+| 20 | VREG | power_out | Internal linear voltage regulator output; 3.3 V nominal output (3.1 V to 3.5 V); requires 1 µF decoupling capacitor; can supply external devices (maximum -25 mA output current). |+| 21 | PowerPAD | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | HTSSOP-20-EP |+| Category | Nixie Tube Driver/LED Driver |+| Pins | 21 |++## CAD (KiCad official)++- Symbol: `TLC5971PWPR`+- Footprint: `Package_SO:TSSOP-20-1EP_4.4x6.5mm_P0.65mm_EP2.15x3.35mm`+- 3D model: HTSSOP-20-EP, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.2 mm nominal TSSOP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)+- 3D model files: `tlc5971pwpr-etched.step` / `tlc5971pwpr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tlc5971pwpr.step` / `tlc5971pwpr.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 2026-10-01, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/tlc5971pwpr-datasheet.pdf)
page.jsonadded+233@@ -0,0 +1,233 @@+{+ "slug": "tlc5971pwpr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments LED Drivers, HTSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "nixie tube driver-led driver",+ "tlc5971pwpr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tlc5971pwpr.kicad_sym",+ "tlc5971pwpr.kicad_mod",+ "tlc5971pwpr.glb",+ "tlc5971pwpr.step",+ "tlc5971pwpr.lbr",+ "docs/hero.png",+ "docs/tlc5971pwpr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "TLC5971PWPR",+ "manufacturer": "Texas Instruments",+ "package": "HTSSOP-20-EP",+ "pin_count": 21,+ "category": "Nixie Tube Driver/LED Driver",+ "subcategory": "LED Drivers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/tlc5971",+ "parts": {+ "symbol": "tlc5971pwpr.kicad_sym",+ "footprint": "tlc5971pwpr.kicad_mod",+ "model_3d": "tlc5971pwpr-etched.glb",+ "model_3d_plain": "tlc5971pwpr.glb",+ "model_3d_step": "tlc5971pwpr-etched.step",+ "model_3d_step_plain": "tlc5971pwpr.step",+ "lbr": "tlc5971pwpr.lbr"+ },+ "distributor_links": {+ "lcsc": "C181236",+ "digikey": "296-27796-2-ND",+ "mouser": "595-TLC5971PWPR"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T17:58:15Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-27796-2-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-TLC5971PWPR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "IREF",+ "type": "output",+ "description": "Maximum current programming terminal; external resistor (0.82 kΩ to 24.8 kΩ) connected to GND sets the maximum constant-current value for all output channels (60 mA to 2 mA)."+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Power ground terminal and exposed thermal pad (bottom side)."+ },+ {+ "number": "3",+ "name": "OUTR0",+ "type": "output",+ "description": "RED constant-current sink output channel 0; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "4",+ "name": "OUTG0",+ "type": "output",+ "description": "GREEN constant-current sink output channel 0; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "5",+ "name": "OUTB0",+ "type": "output",+ "description": "BLUE constant-current sink output channel 0; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "6",+ "name": "OUTR1",+ "type": "output",+ "description": "RED constant-current sink output channel 1; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "7",+ "name": "OUTG1",+ "type": "output",+ "description": "GREEN constant-current sink output channel 1; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "8",+ "name": "OUTB1",+ "type": "output",+ "description": "BLUE constant-current sink output channel 1; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "9",+ "name": "SDTI",+ "type": "input",+ "description": "Serial data input for 224-bit shift register; data shifted on SCKI rising edge with 5 ns setup time and 3 ns hold time."+ },+ {+ "number": "10",+ "name": "SCKI",+ "type": "input",+ "description": "Serial data shift clock input; maximum frequency 20 MHz; 10 ns minimum pulse duration; data shifted toward MSB at each SCKI rising edge."+ },+ {+ "number": "11",+ "name": "SCKO",+ "type": "output",+ "description": "Serial data shift clock output; adjusted timing of SCKI for synchronization of cascaded devices; output voltage range 0 V to VREG."+ },+ {+ "number": "12",+ "name": "SDTO",+ "type": "output",+ "description": "Serial data output of 224-bit shift register; connected to MSB; data clocked out at SCKI rising edge; output voltage range 0 V to VREG."+ },+ {+ "number": "13",+ "name": "OUTR2",+ "type": "output",+ "description": "RED constant-current sink output channel 2; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "14",+ "name": "OUTG2",+ "type": "output",+ "description": "GREEN constant-current sink output channel 2; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "15",+ "name": "OUTB2",+ "type": "output",+ "description": "BLUE constant-current sink output channel 2; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "16",+ "name": "OUTR3",+ "type": "output",+ "description": "RED constant-current sink output channel 3; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "17",+ "name": "OUTG3",+ "type": "output",+ "description": "GREEN constant-current sink output channel 3; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "18",+ "name": "OUTB3",+ "type": "output",+ "description": "BLUE constant-current sink output channel 3; individual 16-bit PWM grayscale control; maximum 60 mA per channel."+ },+ {+ "number": "19",+ "name": "VCC",+ "type": "power_in",+ "description": "Power supply input; 6 V to 17 V for internal linear regulator mode or 3 V to 5.5 V for direct power supply mode."+ },+ {+ "number": "20",+ "name": "VREG",+ "type": "power_out",+ "description": "Internal linear voltage regulator output; 3.3 V nominal output (3.1 V to 3.5 V); requires 1 µF decoupling capacitor; can supply external devices (maximum -25 mA output current)."+ },+ {+ "number": "21",+ "name": "PowerPAD",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 47,+ "cost_usd": 0.5688,+ "at": "2026-10-01T17:57:52"+ },+ "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": 21,+ "described": 21,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}