component
UCC28600DR
Public Unreviewedby Ray
Texas Instruments AC-DC Controllers and Regulators, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownUCC28600DR
Texas Instruments · AC-DC Controllers and Regulators · SOIC-8
UCC28600DR from Texas Instruments, in a SOIC-8. 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 | SS | input | Soft-start programming pin. Program the soft-start rate with a capacitor to GND; rate is set by capacitance and the internal soft-start charge current. Faults discharge SS to GND through an internal MOSFET (R_DS(on) ≈ 100 Ω). Modulator reacts to the lowest of SS, internal FB voltage, and peak current limit. |
| 2 | FB | input | Feedback input or control input from optocoupler to the PWM comparator, controls peak MOSFET current. Internal 20-kΩ pull-up resistor to internal 5-V reference. Voltage on FB selects one of three operating modes: quasi-resonant (QR), frequency foldback (FFM) or green mode (GM). |
| 3 | CS | input | Current sense input; also programs power limit and provides overcurrent protection. Sensed across an external current-sense resistor to GND. Power limit is set with an effective series resistance between this pin and the sense resistor. |
| 4 | GND | power_in | Ground for internal circuitry. Connect a ceramic 0.1-µF bypass capacitor between VDD and GND, placed as close to these two pins as possible. |
| 5 | OUT | output | 1-A sink / 0.75-A source TrueDrive gate-drive output. Drives the power MOSFET and switches between GND and the lower of VDD or the internal 13-V output clamp. |
| 6 | VDD | power_in | Supply input (recommended 21 V max operating, 32 V absolute max). Use a 0.1-µF ceramic bypass capacitor to GND for HF filtering; operating energy is delivered from an auxiliary winding. A larger bulk storage capacitor is also required between VDD and GND to prevent hiccup during start-up. |
| 7 | OVP | input | Over-voltage protection input. Senses line-OVP, load-OVP and the resonant trough for QR turn-on using the primary bias winding of the transformer. Sensitivity is adjusted with external resistors connected to this pin. Absolute range -1.0 V to +6.0 V. |
| 8 | STATUS | output | ACTIVE HIGH open-drain signal indicating the device has entered standby (green) mode; can be used to disable a PFC stage (high-impedance = green mode). STATUS is high during UVLO (VDD < start-up threshold) and during softstart (SS < FB). Rated up to 30 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
UCC28600DRUCC28600DRD
CAD (KiCad official)
- Symbol:
UCC28600DR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (46 pp, sha256
c8acca4e3e835fd9, 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).