component
UCC28220PWR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# UCC28220PWR++**Texas Instruments** · DC-DC Converters · TSSOP-16++UCC28220PWR from Texas Instruments, in a TSSOP-16. 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 | LINEOV | input | Input to the line overvoltage comparator that monitors line voltage for an overvoltage condition, with a typical threshold of 1.26 V. |+| 2 | LINEHYS | input | Sets the line comparator hysteresis for both the line overvoltage and line undervoltage detectors. |+| 3 | VDD | power_in | Device supply input monitored by the UVLO circuit; recommended supply range is 8.4 V to 14.5 V, UVLO turn-on is 10 V for the UCC28220 with 8 V turn-off, and the device draws about 150 µA below UVLO. |+| 4 | CS1 | input | Channel 1 current-sense input, level-shifted by 0.5 V before the PWM comparator with slope compensation added; linear range is 0 to 1.5 V and the pin is pulled to ground whenever OUT1 goes low. |+| 5 | SLOPE | input | Sets the slope-compensation ramp current through a resistor to ground, divided by 25 and applied to an internal 10-pF capacitor, with a normal DC voltage of 2.5 V. |+| 6 | CS2 | input | Channel 2 current-sense input, level-shifted by 0.5 V before the PWM comparator with slope compensation added; linear range is 0 to 1.5 V and the pin is pulled to ground whenever OUT2 goes low. |+| 7 | SS | input | Soft-start input where a capacitor to ground sets the open-loop soft-start time, with source and sink current equal to 3/7 of the CHG charge current; the pin can also be used as an enable/disable. |+| 8 | CTRL | input | Feedback control input that sets the commanded duty cycle, which the soft-start ramp overrides during start-up; the remaining limits for this pin are cut off in the supplied text. |+| 9 | DISCHG | input | Sets the oscillator discharge current through a resistor to GND which, together with the CHG resistor, sets operating frequency and maximum duty cycle, with a normal DC voltage of 2.5 V. |+| 10 | CHG | input | Sets the oscillator charge current through a resistor to GND which, together with the DISCHG resistor, sets operating frequency and maximum duty cycle, with a normal DC voltage of 2.5 V. |+| 11 | GND | power_in | Device ground. |+| 12 | OUT2 | output | Channel 2 PWM output for high-current MOSFET drivers, with approximately 33 mA drive capability, 100 Ω output impedance, and a swing between GND and REF. |+| 13 | OUT1 | output | Channel 1 PWM output for high-current MOSFET drivers, with approximately 33 mA drive capability, 100 Ω output impedance, and a swing between GND and REF. |+| 14 | REF | output | 3.3-V reference output used for the output buffers and internal circuits, protected from accidental shorts to ground, and to be bypassed with at least 0.1 µF to GND. |+| 15 | LINEUV | input | Input to the line undervoltage comparator that monitors line voltage for an undervoltage condition, with a typical threshold of 1.26 V. |+| 16 | N/C | unconnected | No connection on the UCC28220 (no JFET option); pin 16 is VIN only on the UCC28221 16-pin SOIC. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-16 |+| Category | Power Management (PMIC) |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `UCC28220PWR`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)+- 3D model files: `ucc28220pwr-etched.step` / `ucc28220pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc28220pwr.step` / `ucc28220pwr.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/lit/ds/symlink/ucc28220.pdf) (35 pp, sha256 `9dff4a5c54fcd0b2`, retrieved 2026-10-08, tier: manufacturer)+- **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/ucc28220pwr-datasheet.pdf)
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recommended supply range is 8.4 V to 14.5 V, UVLO turn-on is 10 V for the UCC28220 with 8 V turn-off, and the device draws about 150 µA below UVLO."+ },+ {+ "number": "4",+ "name": "CS1",+ "type": "input",+ "description": "Channel 1 current-sense input, level-shifted by 0.5 V before the PWM comparator with slope compensation added; linear range is 0 to 1.5 V and the pin is pulled to ground whenever OUT1 goes low."+ },+ {+ "number": "5",+ "name": "SLOPE",+ "type": "input",+ "description": "Sets the slope-compensation ramp current through a resistor to ground, divided by 25 and applied to an internal 10-pF capacitor, with a normal DC voltage of 2.5 V."+ },+ {+ "number": "6",+ "name": "CS2",+ "type": "input",+ "description": "Channel 2 current-sense input, level-shifted by 0.5 V before the PWM comparator with slope compensation added; linear range is 0 to 1.5 V and the pin is pulled to ground whenever OUT2 goes low."+ },+ {+ "number": "7",+ "name": "SS",+ "type": "input",+ "description": "Soft-start input where a capacitor to ground sets the open-loop soft-start time, with source and sink current equal to 3/7 of the CHG charge current; the pin can also be used as an enable/disable."+ },+ {+ "number": "8",+ "name": "CTRL",+ "type": "input",+ "description": "Feedback control input that sets the commanded duty cycle, which the soft-start ramp overrides during start-up; the remaining limits for this pin are cut off in the supplied text."+ },+ {+ "number": "9",+ "name": "DISCHG",+ "type": "input",+ "description": "Sets the oscillator discharge current through a resistor to GND which, together with the CHG resistor, sets operating frequency and maximum duty cycle, with a normal DC voltage of 2.5 V."+ },+ {+ "number": "10",+ "name": "CHG",+ "type": "input",+ "description": "Sets the oscillator charge current through a resistor to GND which, together with the DISCHG resistor, sets operating frequency and maximum duty cycle, with a normal DC voltage of 2.5 V."+ },+ {+ "number": "11",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground."+ },+ {+ "number": "12",+ "name": "OUT2",+ "type": "output",+ "description": "Channel 2 PWM output for high-current MOSFET drivers, with approximately 33 mA drive capability, 100 Ω output impedance, and a swing between GND and REF."+ },+ {+ "number": "13",+ "name": "OUT1",+ "type": "output",+ "description": "Channel 1 PWM output for high-current MOSFET drivers, with approximately 33 mA drive capability, 100 Ω output impedance, and a swing between GND and REF."+ },+ {+ "number": "14",+ "name": "REF",+ "type": "output",+ "description": "3.3-V reference output used for the output buffers and internal circuits, protected from accidental shorts to ground, and to be bypassed with at least 0.1 µF to GND."+ },+ {+ "number": "15",+ "name": "LINEUV",+ "type": "input",+ "description": "Input to the line undervoltage comparator that monitors line voltage for an undervoltage condition, with a typical threshold of 1.26 V."+ },+ {+ "number": "16",+ "name": "N/C",+ "type": "unconnected",+ "description": "No connection on the UCC28220 (no JFET option); pin 16 is VIN only on the UCC28221 16-pin SOIC."+ }+ ],+ "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 TSSOP-16 (PW) pinout was taken from the 16-pin column of the Pin Functions table (page 4) and cr; The CTRL pin (pin 8) description is truncated in the supplied text after 'Feedback control input:', ; VIN is not present on the 16-pin UCC28220 TSSOP; pin 16 is NC on this device and VIN (pin 20) exists"+ ],+ "pages_sent": 12,+ "cost_usd": 0.0824,+ "at": "2026-10-08T15:51:36"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/ucc28220.pdf",+ "pages": 35,+ "sha256": "9dff4a5c54fcd0b2",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "ucc28220pwr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 5,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "ucc28220pwr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 5,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "424809c8b51c58468d97a119d60d37a2427a41be8e3d12a1ed08694584a6d640",+ "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]"+ }+}