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TM3100

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TM Shenzhen Titan Micro Elec LED Drivers, QSOP-24. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

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TM3100

TM Shenzhen Titan Micro Elec · LED Drivers · QSOP-24

TM3100 from TM Shenzhen Titan Micro Elec, in a QSOP-24. 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 GND power_in Ground return for control logic and constant-current output driver circuits. Connect to system 0 V.
2 SDI input Serial data input to the 16-bit shift register (Schmitt-trigger input). Data is clocked in on the rising edge of CLK, MSB last.
3 CLK input Serial shift-register clock input (Schmitt-trigger). Data on SDI is shifted on the rising edge; maximum clock frequency 25 MHz.
4 LE input Latch enable input (Schmitt-trigger). When LE is HIGH, serial data is transferred from the shift register into the output latches; when LE is LOW the latch data is held. Internal pull-down (RPDWN ≈ 40 kΩ).
5 OUT0 output Constant-current sink output channel 0 for driving an LED. Programmable 5-35 mA (set by R-EXT); withstands up to 30 V. Outputs may be paralleled to boost current.
6 OUT1 output Constant-current sink output channel 1. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
7 OUT2 output Constant-current sink output channel 2. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
8 OUT3 output Constant-current sink output channel 3. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
9 OUT4 output Constant-current sink output channel 4. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
10 OUT5 output Constant-current sink output channel 5. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
11 OUT6 output Constant-current sink output channel 6. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
12 OUT7 output Constant-current sink output channel 7. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
13 OUT8 output Constant-current sink output channel 8. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
14 OUT9 output Constant-current sink output channel 9. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
15 OUT10 output Constant-current sink output channel 10. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
16 OUT11 output Constant-current sink output channel 11. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
17 OUT12 output Constant-current sink output channel 12. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
18 OUT13 output Constant-current sink output channel 13. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
19 OUT14 output Constant-current sink output channel 14. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
20 OUT15 output Constant-current sink output channel 15. Programmable 5-35 mA via R-EXT, tolerates up to 30 V.
21 OE input Output-enable control input (active LOW). When OE is LOW, OUT0-OUT15 sink current; when OE is HIGH, outputs are turned off. Internal pull-up to VDD (RPUP ≈ 40 kΩ).
22 SDO output Serial data output from the shift register, updated on the rising edge of CLK. Connect to SDI of the next TM3100 to cascade multiple drivers.
23 R-EXT passive Constant-current setting pin. Connect an external resistor (Riref) between R-EXT and GND; output current Iout = (1.20 V / Riref) × 15 (e.g. 600 Ω → 30 mA, 1 kΩ → 18 mA). Internal VIREF ≈ 1.20 V.
24 VDD power_in Chip power supply, 4.5-5.5 V (absolute max 6.0 V). Bypass locally with a decoupling capacitor to GND.

Key specifications

Parameter Value
Manufacturer TM Shenzhen Titan Micro Elec
Package QSOP-24
Category LED-drv
Pins 24

CAD (KiCad official)

  • Symbol: TM3100
  • Footprint: Package_SO:QSOP-24_3.9x8.7mm_P0.635mm
  • 3D model: QSOP-24 (KiCad packages3D, STEP)
  • 3D model files: tm3100-etched.step / tm3100-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tm3100.step / tm3100.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: TM Shenzhen Titan Micro Elec datasheet (11 pp, sha256 05ac9a9cf102d8c2, 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).

Datasheet PDF