IRS20957STRPBF

@@ -0,0 +1,55 @@+# IRS20957STRPBF++**Infineon** · Audio Power OpAmps · SOIC-16++IRS20957STRPBF from Infineon, in a SOIC-16. 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 | VDD | power_in | Floating input positive supply. Referenced to VSS. Absolute max -0.3 V to (VSS+... clamped by internal 10.2 V zener). Recommended operating around 5 V above VSS for logic-side power. |+| 2 | CSD | input | Shutdown timing capacitor pin, referenced to VSS. External capacitor sets the charge/discharge timing for the protection reset function. Voltage range VSS-0.3 V to VDD+0.3 V. |+| 3 | IN | input | PWM non-inverting input, in phase with HO. Compatible with 3.3 V / 5 V logic levels referenced to VSS. Voltage range VSS-0.3 V to VDD+0.3 V. |+| 4 | VSS | power_in | Floating input supply return. Local ground reference for the floating PWM input section (VDD, CSD, IN). Can float up to ~200 V with respect to COM. |+| 5 | NC | unconnected | No connect. Leave floating or tie per application notes. |+| 6 | VREF | power_out | 5.1 V reference output, referenced to COM. Used with an external resistor divider to set the OCSET over-current threshold. Max output current 5 mA. |+| 7 | OCSET | input | Low-side over-current threshold setting input, referenced to COM. External resistor divider from VREF programs the low-side OC trip point. Voltage range -0.3 V to VCC+0.3 V. |+| 8 | DT | input | Input for programmable dead-time selection, referenced to COM. Sets one of four preset dead-time values (15/25/35/80 ns) based on the applied voltage level. Range -0.3 V to VCC+0.3 V. |+| 9 | COM | power_in | Low-side supply return / device ground. Reference for VCC, LO, DT, OCSET, VREF, and the absolute-max voltage reference for the entire part. |+| 10 | LO | output | Low-side gate drive output. Drives the low-side power MOSFET gate; swings between COM and VCC. Typical peak sink 1.2 A / source 1.0 A. Internal 20.4 V clamp to COM. |+| 11 | VCC | power_in | Low-side fixed supply, referenced to COM. Typically 12 V (absolute max 20 V). Contains an internal shunt zener; observe clamp current limits. |+| 12 | NC | unconnected | No connect. Leave floating or tie per application notes. |+| 13 | VS | power_in | High-side floating supply return. Connects to the switching node between the high-side and low-side power MOSFETs. Range VB-15 V to VB+0.3 V; tolerates -100 V to +100 V bus operation. |+| 14 | HO | output | High-side floating gate drive output. Drives the high-side power MOSFET; swings between VS and VB. Typical peak sink 1.2 A / source 1.0 A. Internal 15.3 V clamp to VS. |+| 15 | VB | power_in | High-side floating supply (bootstrap). Referenced to VS. Absolute max 215 V with respect to COM; supplied via bootstrap capacitor/diode from VCC. |+| 16 | CSH | input | High-side over-current sensing input, referenced to VS. Senses the drain-source voltage of the high-side MOSFET (RDS(on) sensing) for bi-directional over-current detection. Range VS-0.3 V to VB+0.3 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Infineon |+| Package | SOIC-16 |+| Category | Op-amp/Cmp |+| Pins | 16 |++## Ordering variants++- `IRS20957STRPBFSTRPBF`++## CAD (KiCad official)++- Symbol: `IRS20957STRPBF`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Infineon datasheet](docs/irs20957strpbf-datasheet.pdf) (18 pp, sha256 `7abc11de07f6d4e9`, retrieved 2026-08-17, tier: manufacturer)+- **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/irs20957strpbf-datasheet.pdf)

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