BTS4141N

@@ -0,0 +1,39 @@+# BTS4141N++**Infineon** · AC-DC Controllers and Regulators · SOT-223++BTS4141N from Infineon, in a SOT-223. 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. Drain of the internal N-channel power FET; RON ≈ 200 mΩ, nominal load current ≥ 0.7 A, self-limited short-circuit current (~1.4 A typ, 2.1 A max initial peak). Actively clamped to ~63 V min. for inductive load switch-off. |+| 2 | GND | power_in | Logic (signal) ground reference for the internal control and protection circuitry. For load-dump and reverse-battery protection an external RGND ≈ 150 Ω resistor may be placed in series between this pin and system ground. |+| 3 | IN | input | CMOS-compatible logic input; drives the power switch on with a logic-high level (VIN(T+) ≤ 3.0 V turn-on, VIN(T-) ≥ 1.82 V turn-off, ~0.2 V hysteresis). Internal series resistor RI ≈ 3 kΩ; input clamped and ESD-protected, VIN range −10 V…Vbb. |+| 4 | Vbb | power_in | Positive battery supply (source of the internal N-FET). Operating range 12…45 V, absolute max 48 V, overvoltage clamp Vbb(AZ) = 47 V, load-dump withstand 83 V. Also acts as the tab / heat-sink pad on PG-SOT-223. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Infineon |+| Package | SOT-223 |+| Category | PMIC |+| Pins | 4 |++## CAD (KiCad official)++- Symbol: `BTS4141N`+- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`+- 3D model: SOT-223 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Infineon datasheet](docs/bts4141n-datasheet.pdf) (21 pp, sha256 `9e4935b2086ee127`, 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/bts4141n-datasheet.pdf)

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