component
UC2842AQD8R
Public Made by Adomby adom
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
markdownUC2842AQD8R
Texas Instruments · AC-DC Controllers And Regulators · SOIC-8
UC2842AQD8R 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 | COMP | output | Output of internal 1MHz error amplifier; input to peak current limit or PWM comparator with 90dB open loop gain; maximum sink current 6mA |
| 2 | VFB | input | Error amplifier feedback input for closed-loop voltage regulation and feedback loop stability |
| 3 | ISENSE | input | Peak current sense input to current limit or PWM comparator; internally clamped to maximum 1V for cycle-by-cycle peak current limiting |
| 4 | RT/CT | input | Oscillator timing input; connect external resistor (5kΩ to 100kΩ) and capacitor (470pF to 4.7nF) for frequency programming |
| 5 | GND | power_in | Signal ground reference for the controller |
| 6 | OUTPUT | output | 1A totem pole gate driver output; capable of sourcing and sinking up to 1A; external resistor required to limit driver current |
| 7 | VCC | power_in | Positive supply voltage input for analog controller; total VCC current equals static bias current plus average OUTPUT current |
| 8 | VREF | power_in | Reference voltage output for gate driver bias; requires decoupling capacitor at least 10 times larger than main switch FET gate capacitance |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
UC2842AQD8R - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
uc2842aqd8r-etched.step/uc2842aqd8r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uc2842aqd8r.step/uc2842aqd8r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
d0cf86cfbd299c9e, retrieved 2026-09-24, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).