component
UCC25710DWR
Public Made by Adomby adom
Texas Instruments LED Drivers, SOIC-20-300mil. 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
markdownUCC25710DWR
Texas Instruments · LED Drivers · SOIC-20-300mil
UCC25710DWR from Texas Instruments, in a SOIC-20-300mil. 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 | VCC | power_in | DC power supply input; operating range 11V to 18V with UVLO threshold at 9.3V. |
| 2 | GD1 | output | Gate drive output operating 180° out of phase from GD2 with 500ns fixed dead time. |
| 3 | GD2 | output | Gate drive output operating 180° out of phase from GD1 with 500ns fixed dead time. |
| 4 | GND | power_in | Ground reference pin for controller and low-side return for gate drive signals. |
| 5 | VREF | power_in | Internal 5V reference output capable of supplying 10mA external current. |
| 6 | LEDSW | output | LED switch control output low during DIM low or LLC disabled, high during soft-start. |
| 7 | DTY | bidirectional | Duty-cycle proportional voltage in range 100mV to 2.6V calculated as 2.5V(1-D)+0.1V. |
| 8 | DADJ | bidirectional | Duty-cycle adjust capacitor input where 20µA current source sets positive ramp slope. |
| 9 | DIM | input | PWM dimming input controlling average load current by switching LED switch and gate drives. |
| 10 | BLON | input | Backlight enable input active high at approximately 1.2V enabling VREF output. |
| 11 | UV | input | Undervoltage monitor with 2.4V threshold and 240mV hysteresis triggering soft-start on recovery. |
| 12 | OV | input | Overvoltage monitor with 2.6V threshold and 240mV hysteresis triggering soft-start on recovery. |
| 13 | CL | input | Current limit input with 0.95V threshold for shutdown/retry and 1.9V threshold for latching shutdown. |
| 14 | DSR | bidirectional | Dimming slew rate capacitor input where ±44µA current programs VCO frequency change rate; disables GD if below 0.8V. |
| 15 | CREF | input | Current reference input setting LED regulating voltage in range 0.5V to 2.8V. |
| 16 | CS | input | Current sense input monitored and compared to CREF voltage to regulate total LED current. |
| 17 | ICOMP | tri_state | Current compensation output tri-stated during DIM OFF-time; disables GD if pulled below 0.8V. |
| 18 | SS | bidirectional | Soft-start capacitor input charged by 2.5µA source to 4.2V threshold enabling PWM dimming. |
| 19 | FMAX | bidirectional | Maximum frequency setting input where resistor to ground programs frequency range difference. |
| 20 | FMIN | bidirectional | Minimum frequency setting input where resistor to ground programs minimum frequency down to 30kHz. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-20-300mil |
| Category | LED Drivers |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
UCC25710DWR - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
ucc25710dwr-etched.step/ucc25710dwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc25710dwr.step/ucc25710dwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (41 pp, sha256
312c815717ee375c, retrieved 2026-09-26, 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-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).