component
TL3843DR-8
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, 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
markdownTL3843DR-8
Texas Instruments · AC-DC Controllers And Regulators · SOIC-8
TL3843DR-8 from Texas Instruments, in a SOIC-8. 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 | COMP | bidirectional | Error amplifier compensation pin for frequency compensation network. |
| 2 | VFB | input | Error amplifier input for feedback voltage with range 0 to 5.5 V. |
| 3 | ISENSE | input | Current sense comparator input for inductor current with range 0 to 5.5 V. |
| 4 | RT/CT | bidirectional | Oscillator RC timing input for frequency setting with external resistor-capacitor, voltage range 0 to 5.5 V. |
| 5 | GND | power_in | Device power supply ground terminal. |
| 6 | OUTPUT | output | PWM output for driving external switching stage, voltage range 0 to 30 V with ±1 A maximum output current. |
| 7 | VCC | power_in | Device positive voltage supply terminal, 30 V maximum. |
| 8 | REF | output | Oscillator voltage reference output for internal oscillator biasing. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
TL3843DR-8 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tl3843dr-8-etched.step/tl3843dr-8-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl3843dr-8.step/tl3843dr-8.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (30 pp, sha256
95ce000f029287cb, retrieved 2026-10-01, 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 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).