component
UCC3806DWTR
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
markdownUCC3806DWTR
Texas Instruments · AC-DC Controllers And Regulators · SOIC-16-300mil
UCC3806DWTR 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 | CURLIM | input | Programs the primary current limit threshold and determines whether the device latches off or retries after an overcurrent; the voltage must stay below 350 mV for a restart. |
| 2 | VREF | power_out | 5.1 V ±1% trimmed reference output with 5 mA maximum available current, which must be bypassed to GND with at least a 0.1-µF ceramic capacitor. |
| 3 | CS-- | input | Inverting input of the 3× differential current sense amplifier. |
| 4 | CS+ | input | Non-inverting input of the 3× differential current sense amplifier. |
| 5 | NI | input | Non-inverting input of the error amplifier. |
| 6 | INV | input | Inverting input of the error amplifier. |
| 7 | COMP | output | Output of the error amplifier and input of the PWM comparator; zero duty cycle is commanded by externally forcing COMP to GND. |
| 8 | CT | input | Oscillator timing capacitor connection, charged by the RT current and discharged to GND through a 2.5-mA sink to set dead time. |
| 9 | RT | input | Oscillator timing resistor connection, nominally 1.25 V; the mirrored current is limited to 100 µA so RT must be greater than 12.5 kΩ. |
| 10 | SYNC | bidirectional | Bidirectional TTL-compatible synchronization pin that outputs a pulse during oscillator dead time, and becomes an input disabling the internal oscillator when RT is forced above 4.4 V. |
| 11 | AOUT | output | High-current gate drive for the external MOSFET, with duty cycle variable from 0% to 50%. |
| 12 | GND | power_in | Reference ground and power ground for all functions of the device. |
| 13 | VC | power_in | Input supply connection for the FET drive outputs, with an input range of 2.5 V to 15 V, which should be capacitively bypassed. |
| 14 | BOUT | output | High-current gate drive for the external MOSFET, alternating with AOUT. |
| 15 | VIN | power_in | Input supply connection for the device, internally limited by a 15 V shunt regulator with shunt current limited to 25 mA and bypassed with at least 0.01 µF ceramic. |
| 16 | SHUTDOWN | input | Protection input; when driven above 1 V, AOUT and BOUT are forced low. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Power Management (PMIC) |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
UCC3806DWTR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
ucc3806dwtr-etched.step/ucc3806dwtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc3806dwtr.step/ucc3806dwtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (36 pp, sha256
20f40789e136b23c, retrieved 2026-10-07, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(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).