component
UC2846DWTR
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, SOIC-16-300mil. 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
markdownUC2846DWTR
Texas Instruments · AC-DC Controllers And Regulators · SOIC-16-300mil
UC2846DWTR from Texas Instruments, in a SOIC-16-300mil. 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 | C/S SS | input | Current limit and soft-start programming input with 50 mA maximum sink current. |
| 2 | VREF | power_out | 5.1-V reference voltage output with ±1% tolerance. |
| 3 | C/S- | input | Inverting input of current sense comparator; common mode 0 to VIN-3 V. |
| 4 | C/S+ | input | Non-inverting input of current sense comparator; common mode 0 to VIN-3 V. |
| 5 | E/A+ | input | Non-inverting input of error amplifier; common mode 0 to VIN-2 V. |
| 6 | E/A- | input | Inverting input of error amplifier; common mode 0 to VIN-2 V. |
| 7 | COMP | output | Error amplifier output to PWM comparator; 4.3-4.6 V high and 0.7-1 V low into 15 kΩ load. |
| 8 | CT | input | Oscillator frequency programming capacitor pin; 4.7 nF ceramic to ground typical. |
| 9 | RT | input | Oscillator frequency programming resistor pin; 10 kΩ to ground typical, 5 mA maximum charging current. |
| 10 | Sync | bidirectional | Synchronization output from master or input to slave; 3.9-4.35 V high and 2.3-2.5 V low. |
| 11 | A Out | output | PWM drive signal output A; 500 mA peak source and sink; complementary with B Out. |
| 12 | GND | power_in | Ground reference node for all signals. |
| 13 | VC | power_in | Collector supply voltage for output stage; 40 V maximum. |
| 14 | B Out | output | PWM drive signal output B; 500 mA peak source and sink; complementary with A Out. |
| 15 | VIN | power_in | Main bias supply input; 8-40 V operating range. |
| 16 | Shutdown | input | External shutdown signal input; 350 mV threshold with 0.75 V hysteresis. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Power Management (PMIC) |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
UC2846DWTR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
uc2846dwtr-etched.step/uc2846dwtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uc2846dwtr.step/uc2846dwtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (24 pp, sha256
0d1e2750f80a16be, retrieved 2026-09-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).