BTS6143D

@@ -0,0 +1,41 @@+# BTS6143D++**Infineon Technologies** · Power Distribution Switches · TO-252-4++BTS6143D from Infineon Technologies, in a TO-252-4. 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 | OUT | power_out | Switched high-side output to the load. Pins 1 and 5 must be externally shorted together; failure to short them increases R_ON, reduces peak current capability, and degrades current-sense accuracy. |+| 2 | IN | input | Logic input; activates the power switch when pulled to ground (active-low via internal current source referenced to Vbb). Typical turn-on current capability 1.4 mA (max 2.2 mA); turn-off input current max 30 uA. |+| 3 | Vbb | power_in | Positive supply voltage input (5.5 to 38 V operating, 45 V load-dump). Pin 3 is internally shorted to the exposed tab, which is also the main thermal path. |+| 4 | IS | output | Diagnostic current-sense output. Sources a current proportional to load current during normal operation (k_ILIS ~ 10000, I_S = I_L / k_ILIS) through an external R_IS (typ. 1 kOhm) to signal GND, generating V_IS. In fault conditions (overload, overtemperature, short circuit) a defined I_S,fault (4-7.5 mA) is asserted; see Truth Table. |+| 5 | OUT | power_out | Switched high-side output to the load (second output lead of the power MOSFET). Pins 1 and 5 must be externally shorted together to achieve the specified R_ON and current handling. |+| TAB | Vbb | power_in | Exposed die-attach tab; internally shorted to pin 3 (Vbb). Serves as the main thermal path - solder to a copper area for adequate heat dissipation (R_thJA ~ 45 K/W on 50x50x1.5 mm FR4 with 6 cm2 copper). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Infineon Technologies |+| Package | TO-252-4 |+| Category | Power Management (PMIC) |+| Pins | 6 |++## CAD (KiCad official)++- Symbol: `BTS6143D`+- Footprint: `Package_TO_SOT_SMD:TO-252-4`+- 3D model: TO-252-4 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Infineon Technologies datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586202555936616448) (18 pp, sha256 `19a4b4b768b72bd6`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/bts6143d-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "bts6143d",+  "version": "0.1.0",+  "type": "component",+  "description": "Infineon Technologies Power Distribution Switches, TO-252-4. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "power management (pmic)",+    "bts6143d"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "bts6143d.kicad_sym",+    "bts6143d.kicad_mod",+    "bts6143d.glb",+    "bts6143d.step",+    "bts6143d.lbr",+    "docs/hero.png",+    "docs/bts6143d-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file