component
UCC287506DBVR
Public Made by Adomby adom
TI(德州仪器) , SOT-23-6. 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
markdownUCC287506DBVR
TI(德州仪器) · IC · SOT-23-6
UCC287506DBVR from TI(德州仪器), in a SOT-23-6. 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 | GND | power_in | Controller ground return; connect it to the primary-side converter ground through a low-impedance path. |
| 2 | FB | input | Voltage feedback pin with internal DC bias, normally connected to the optocoupler collector and pulled up internally to VREF through RFB (10 kΩ typ); recommended FB voltage range is -0.3 V to 2.6 V (absolute maximum 5.5 V). |
| 3 | FLT | input | Fault pin that provides external over-temperature detection through an NTC to GND and output over-voltage detection (VFLT(ovp) 3.8 to 4.3 V, typ 4.1 V, after three switching cycles) on the OVP/external-NTC variant; pulling it below VFLT(dis) 0.5 V disables switching, and its recommended voltage range is -0.3 V to 4 V with sink current limited to 5 mA. |
| 4 | CS | input | Current-sense and slope-compensation input that connects to the flyback MOSFET source and sense resistor; recommended voltage range is -0.3 V to 0.9 V (absolute maximum 5.5 V), with peak current limit VCS(limit) of 900 mV. |
| 5 | VDD | power_in | Auxiliary bias supply pin with recommended operating range of 10 V to 26 V, UVLO turn-on 15.3 V typ and turn-off 9 V typ, and absolute maximum of 30 V. |
| 6 | DRV | output | Low-side gate driver output that drives a MOSFET with up to 300 mA peak source and 500 mA peak sink current, clamped to 12 V, with recommended voltage range of -0.3 V to 12 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TI(德州仪器) |
| Package | SOT-23-6 |
| Category | |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VDD input voltage range | VDD | -0.3 | 30 | V | 5 | ||
| DRV output voltage range | DRV | -0.3 | V | 5 | |||
| CS pin voltage | CS | -0.3 | 5.5 | V | 5 | ||
| FB pin voltage | FB | -0.3 | 5.5 | V | 5 | ||
| FLT pin voltage range | FLT | -0.3 | 5.5 | V | 5 | ||
| FLT pin sink current | FLT | 0 | 5 | mA | 5 | ||
| Junction temperature | TJ | -40 | 125 | °C | 5 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 5 | ||
| ESD human body model (HBM) | V(ESD) | -2000 | 2000 | V | HBM per ANSI/ESDA/JEDEC JS-001, all pins | 5 | |
| ESD charged device model (CDM) | V(ESD) | -500 | 500 | V | CDM per JEDEC JS-002, all pins | 5 | |
| VDD operating input voltage | VDD | 10 | 26 | V | 5 | ||
| DRV output voltage range | DRV | -0.3 | 12 | V | 5 | ||
| CS pin voltage | CS | -0.3 | 0.9 | V | 5 | ||
| FB pin voltage | FB | -0.3 | 2.6 | V | 5 | ||
| FLT pin voltage range | FLT | -0.3 | 4 | V | 5 | ||
| GND pin voltage | GND | -0.3 | 0.3 | V | 5 | ||
| Junction temperature (operating) | TJ | -40 | 125 | °C | 5 | ||
| Junction-to-ambient thermal resistance (DBV, 6-pin) | RθJA | 231.1 | ℃/W | 5 | |||
| Junction-to-case (top) thermal resistance | RθJC(top) | 158.9 | ℃/W | 5 | |||
| Junction-to-board thermal resistance | RθJB | 117.2 | ℃/W | 5 | |||
| Junction-to-top characterization parameter | ΨJT | 94.9 | ℃/W | 5 | |||
| Junction-to-board characterization parameter | ΨJB | 116.9 | ℃/W | 6 | |||
| VDD undervoltage lockout turn-on voltage (rising) | Vuvlo(on) | 14.3 | 15.3 | 16.3 | V | -40℃ < TJ < 125℃ | 6 |
| VDD undervoltage lockout turn-off voltage (falling) | Vuvlo(off) | 8 | 9 | 10 | V | -40℃ < TJ < 125℃ | 6 |
| VDD overvoltage lockout threshold | Vovlo | 26 | 28 | 30 | V | VFB = 2.3 V | 6 |
| Controller start-up bias current | IVDD(start) | 5 | 10 | μA | VVDD = 14V | 6 | |
| Controller operating bias current (100kHz variant) | IVDD(on) | 2 | 2.7 | mA | UCC287505/6/7/8 (100kHz), fSW = 100kHz, CDRV = 1000pF, VFB = 2.3V | 6 | |
| FLT overvoltage stop threshold | VFLT(ovp) | 3.8 | 4.1 | 4.3 | V | 7 | |
| FLT overtemperature stop threshold | VFLT(tsd) | 0.95 | 1 | 1.05 | V | 7 | |
| FLT disable threshold | VFLT(dis) | 0.45 | 0.5 | 0.55 | V | 7 |
CAD (KiCad official)
- Symbol:
UCC287506DBVR - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
ucc287506dbvr-etched.step/ucc287506dbvr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc287506dbvr.step/ucc287506dbvr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TI(德州仪器) datasheet (51 pp, sha256
35f96a0615850654, retrieved 2026-10-17, 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-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).