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LM3429Q1MH
Public Made by Adomby adom
Texas Instruments LED Drivers, HTSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+51@@ -0,0 +1,51 @@+# LM3429Q1MH++**Texas Instruments** · LED Drivers · HTSSOP-14++LM3429Q1MH from Texas Instruments, in a HTSSOP-14. 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 | VIN | power_in | Input voltage pin (VIN range 4.5 V to 75 V); bypass with a 100 nF capacitor to AGND as close to the device as possible. |+| 2 | COMP | input | Compensation pin; connect a capacitor to AGND to set the loop compensation. |+| 3 | CSH | input | Current sense high pin; connect a resistor to AGND to set signal current, or a current source or potentiometer to AGND for analog dimming. |+| 4 | RCT | input | Resistor-capacitor timing pin; connect a resistor from the switch node and a capacitor to AGND to set the switching frequency. |+| 5 | AGND | power_in | Analog ground that provides the ground return for CSH, COMP and RCT; connect to PGND through the DAP copper pad. |+| 6 | OVP | input | Overvoltage protection pin; connect a resistor divider from the output or input to program OVLO, with a 1.24 V turn-off threshold and 20 µA hysteresis current source. |+| 7 | nDIM | input | Dual-function PWM dimming and input UVLO pin with a 1.24 V turn-on threshold and 20 µA hysteresis current source. |+| 8 | NC | unconnected | No connection; leave open. |+| 9 | PGND | power_in | Power ground for GATE; connect to AGND through the DAP copper pad to provide the ground return. |+| 10 | GATE | output | Gate drive output; connect to the gate of the external N-channel FET. |+| 11 | VCC | power_out | Internal regulator output; bypass with a 2.2 µF-3.3 µF ceramic capacitor to PGND. |+| 12 | IS | input | Main switch current sense; connect to the drain of the main N-channel MOSFET for RDS(ON) sensing, or to a sense resistor installed in the source of the same device. |+| 13 | HSP | input | LED current sense positive; connect through a series resistor to the LED current sense resistor. |+| 14 | HSN | input | LED current sense negative; connect through a series resistor to the LED current sense resistor. |+| 15 | DAP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | HTSSOP-14 |+| Category | LED Drivers |+| Pins | 15 |++## CAD (KiCad official)++- Symbol: `LM3429Q1MH`+- Footprint: `Package_SO:TSSOP-14-1EP_4.4x5mm_P0.65mm`+- 3D model: HTSSOP-14 (KiCad packages3D, STEP)+- 3D model files: `lm3429q1mh-etched.step` / `lm3429q1mh-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm3429q1mh.step` / `lm3429q1mh.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/lm3429-q1) (65 pp, sha256 `3e1d13598a9c0c70`, 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/lm3429q1mh-datasheet.pdf)
page.jsonadded+241@@ -0,0 +1,241 @@+{+ "slug": "lm3429q1mh",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments LED Drivers, HTSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "led drivers",+ "lm3429q1mh",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm3429q1mh.kicad_sym",+ "lm3429q1mh.kicad_mod",+ "lm3429q1mh.glb",+ "lm3429q1mh.step",+ "lm3429q1mh.lbr",+ "docs/hero.png",+ "docs/lm3429q1mh-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lm3429q1mh-hero.glb",+ "lm3429q1mh-hero.overlay.json"+ ],+ "component": {+ "mpn": "LM3429Q1MH",+ "manufacturer": "Texas Instruments",+ "package": "HTSSOP-14",+ "pin_count": 15,+ "category": "LED Drivers",+ "subcategory": "LED Drivers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm3429-q1",+ "parts": {+ "symbol": "lm3429q1mh.kicad_sym",+ "footprint": "lm3429q1mh.kicad_mod",+ "model_3d": "lm3429q1mh-hero.glb",+ "model_3d_plain": "lm3429q1mh.glb",+ "model_3d_step": "lm3429q1mh-etched.step",+ "model_3d_step_plain": "lm3429q1mh.step",+ "lbr": "lm3429q1mh.lbr"+ },+ "distributor_links": {+ "lcsc": "C701126"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T09:39:35Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": null,+ "status": "no match"+ },+ "mouser": {+ "pn": null,+ "status": "no match"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VIN",+ "type": "power_in",+ "description": "Input voltage pin (VIN range 4.5 V to 75 V); bypass with a 100 nF capacitor to AGND as close to the device as possible."+ },+ {+ "number": "2",+ "name": "COMP",+ "type": "input",+ "description": "Compensation pin; connect a capacitor to AGND to set the loop compensation."+ },+ {+ "number": "3",+ "name": "CSH",+ "type": "input",+ "description": "Current sense high pin; connect a resistor to AGND to set signal current, or a current source or potentiometer to AGND for analog dimming."+ },+ {+ "number": "4",+ "name": "RCT",+ "type": "input",+ "description": "Resistor-capacitor timing pin; connect a resistor from the switch node and a capacitor to AGND to set the switching frequency."+ },+ {+ "number": "5",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground that provides the ground return for CSH, COMP and RCT; connect to PGND through the DAP copper pad."+ },+ {+ "number": "6",+ "name": "OVP",+ "type": "input",+ "description": "Overvoltage protection pin; connect a resistor divider from the output or input to program OVLO, with a 1.24 V turn-off threshold and 20 µA hysteresis current source."+ },+ {+ "number": "7",+ "name": "nDIM",+ "type": "input",+ "description": "Dual-function PWM dimming and input UVLO pin with a 1.24 V turn-on threshold and 20 µA hysteresis current source."+ },+ {+ "number": "8",+ "name": "NC",+ "type": "unconnected",+ "description": "No connection; leave open."+ },+ {+ "number": "9",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground for GATE; connect to AGND through the DAP copper pad to provide the ground return."+ },+ {+ "number": "10",+ "name": "GATE",+ "type": "output",+ "description": "Gate drive output; connect to the gate of the external N-channel FET."+ },+ {+ "number": "11",+ "name": "VCC",+ "type": "power_out",+ "description": "Internal regulator output; bypass with a 2.2 µF-3.3 µF ceramic capacitor to PGND."+ },+ {+ "number": "12",+ "name": "IS",+ "type": "input",+ "description": "Main switch current sense; connect to the drain of the main N-channel MOSFET for RDS(ON) sensing, or to a sense resistor installed in the source of the same device."+ },+ {+ "number": "13",+ "name": "HSP",+ "type": "input",+ "description": "LED current sense positive; connect through a series resistor to the LED current sense resistor."+ },+ {+ "number": "14",+ "name": "HSN",+ "type": "input",+ "description": "LED current sense negative; connect through a series resistor to the LED current sense resistor."+ },+ {+ "number": "15",+ "name": "DAP",+ "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: The datasheet classifies VCC as 'I' (input), but its description says it is the internal regulator o; The thermal pad is labeled 'DAP' in the datasheet rather than a numbered pin, so it is listed under ; Pin 8 is a no-connect and is listed as unconnected. The table covers the PWP (HTSSOP-14) package; th",+ "exposed pad 15 added from the footprint",+ "dropped thermal pad ['EP'] absent from footprint"+ ],+ "pages_sent": 11,+ "cost_usd": 0.0563,+ "at": "2026-10-08T09:39:22"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm3429-q1",+ "pages": 65,+ "sha256": "3e1d13598a9c0c70",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 15,+ "described": 15,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "lm3429q1mh.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.35,+ 5,+ 1.05+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "e73930af88609deacee2bde98223bb9da2411f0cebb494015de765f0df216789",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lm3429q1mh-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.35,+ 5,+ 1.05+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "30715eef0149325e89f8d42e766b55f3f3502d281f91220bf098eb93a42a859c",+ "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]"+ }+}