component
TM1814
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TM Shenzhen Titan Micro Elec TM1814 TA2105B LED Drivers, SOP-8. Pinout extracted from 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
markdownTM1814
TM Shenzhen Titan Micro Elec · LED Drivers · SOP-8
TM1814 from TM Shenzhen Titan Micro Elec, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUTR | output | Red-channel constant-current output. N-channel open-drain sink; 64-step programmable constant current 6.5 mA-38 mA, 256-level PWM dimming. Rated up to 32 V; recommended OUT-on voltage 1.2-3 V for best efficiency; enters constant-current region above ~0.8 V. |
| 2 | OUTG | output | Green-channel constant-current output. N-channel open-drain sink; 64-step programmable constant current 6.5 mA-38 mA with 256-level PWM. Absolute max 32 V; channel-to-channel matching ±3%. |
| 3 | OUTB | output | Blue-channel constant-current output. N-channel open-drain sink; 64-step programmable constant current 6.5 mA-38 mA with 256-level PWM. Absolute max 32 V. |
| 4 | GND | power_in | Ground / power supply return. All voltages are referenced to this pin. |
| 5 | DO | output | Single-wire cascade data output. Forwards regenerated data to the DIN of the next TM1814 in the chain; held high before forwarding starts. Recommend 100 Ω series resistor for ESD/hot-plug protection. Propagation delay DIN→DO ~155 ns. |
| 6 | DIN | input | Single-wire cascade data input. Receives NRZ-coded control data (C1 current setting + C2 inverse + Dn PWM values) at up to 800 kHz. VIH ≥ 3.5 V, VIL ≤ 1.5 V at VDD=5 V. Recommend 100 Ω series resistor for ESD/hot-plug protection. |
| 7 | VDD | power_in | Logic power supply, 4.5-6.5 V typical (5.0 V nominal). Integrates an internal 5 V zener regulator so the chip can operate from a 6-24 V rail through an external series resistor (R = (VDC - 5.5 V) / 10 mA). Bypass with a 104 (100 nF) decoupling cap close to the pin. Abs-max 7.0 V. |
| 8 | OUTW | output | White-channel constant-current output. N-channel open-drain sink; 64-step programmable constant current 6.5 mA-38 mA with 256-level PWM. Absolute max 32 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TM Shenzhen Titan Micro Elec |
| Package | SOP-8 |
| Category | LED-drv |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
TM1814 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
tm1814-etched.step/tm1814-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tm1814.step/tm1814.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TM Shenzhen Titan Micro Elec datasheet (10 pp, sha256
4287ea6b25920461, retrieved 2026-08-17, 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).