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docs mbi5124gp-b: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
mbi5124gp-b-etched.fit.json mbi5124gp-b: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mbi5124gp-b-etched.glb mbi5124gp-b: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mbi5124gp-b-etched.step mbi5124gp-b: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
mbi5124gp-b.glb Publish 0.1.0 · Ray
mbi5124gp-b.kicad_mod Publish 0.1.0 · Ray
mbi5124gp-b.kicad_sym Publish 0.1.0 · Ray
mbi5124gp-b.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
mbi5124gp-b.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json mbi5124gp-b: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md mbi5124gp-b: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

MBI5124GP-B

MBI · LED Display Drivers · SSOP-24

MBI5124GP-B from MBI, in a SSOP-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 terminal for control logic and current sink. Handles up to 480mA of return current for all 16 output channels combined.
2 SDI input Serial data input to the 16-bit shift register. Schmitt-trigger CMOS input; VIH >= 0.7*VDD. Data is shifted on the rising edge of CLK.
3 CLK input Clock input for shifting data into the register on rising edge. Schmitt-trigger CMOS input; supports up to 25MHz clock frequency.
4 LE input Data strobe (latch enable) input. Serial data is transferred to the output latch while LE is high and latched when LE goes low. Internal pull-down (typ. 350 kOhm).
5 OUT0 output Constant-current LED output channel 0 (active-low, open-drain current sink). Sinks 1-25mA @ VDD=5V (1-10mA @ VDD=3.3V) set by R-EXT; sustaining voltage up to VDD+0.3V (17V max at OUT port).
6 OUT1 output Constant-current LED output channel 1 (active-low, open-drain current sink). Sinks 1-25mA @ VDD=5V programmed by R-EXT.
7 OUT2 output Constant-current LED output channel 2 (active-low, open-drain current sink).
8 OUT3 output Constant-current LED output channel 3 (active-low, open-drain current sink).
9 OUT4 output Constant-current LED output channel 4 (active-low, open-drain current sink).
10 OUT5 output Constant-current LED output channel 5 (active-low, open-drain current sink).
11 OUT6 output Constant-current LED output channel 6 (active-low, open-drain current sink).
12 OUT7 output Constant-current LED output channel 7 (active-low, open-drain current sink).
13 OUT8 output Constant-current LED output channel 8 (active-low, open-drain current sink).
14 OUT9 output Constant-current LED output channel 9 (active-low, open-drain current sink).
15 OUT10 output Constant-current LED output channel 10 (active-low, open-drain current sink).
16 OUT11 output Constant-current LED output channel 11 (active-low, open-drain current sink).
17 OUT12 output Constant-current LED output channel 12 (active-low, open-drain current sink).
18 OUT13 output Constant-current LED output channel 13 (active-low, open-drain current sink).
19 OUT14 output Constant-current LED output channel 14 (active-low, open-drain current sink).
20 OUT15 output Constant-current LED output channel 15 (active-low, open-drain current sink).
21 OE input Active-low output enable. When OE is low the output drivers are enabled; when high, all outputs are turned off (blanked). Internal pull-up (typ. 350 kOhm) to VDD; min pulse width 50ns @ VDD=5V.
22 SDO output Serial data output to the SDI of the next driver IC in the daisy chain. Changes on rising edge of CLK. Push-pull CMOS output; IOH/IOL = 1.0mA typical.
23 R-EXT passive External resistor connection used to program the output current for all 16 channels. Typical values: R_ext=1820 Ohm for ~10.7mA @ 5V; R_ext=720 Ohm for ~25.8mA @ 3.3V. Tie through resistor to GND.
24 VDD power_in 3.3V or 5V supply voltage terminal (absolute max 7.0V). Bypass locally to GND.

Key specifications

Parameter Value
Manufacturer MBI
Package SSOP-24
Category LED-drv
Pins 24

Ordering variants

Same part, different packaging or reel option.

  • MBI5124GP-B
  • MBI5124GP-BGF
  • MBI5124GP-BGM
  • MBI5124GP-BGFN

CAD (KiCad official)

  • Symbol: MBI5124GP-B
  • Footprint: Package_SO:SSOP-24_5.3x8.2mm_P0.65mm
  • 3D model: SSOP-24 (KiCad packages3D, STEP)
  • 3D model files: mbi5124gp-b-etched.step / mbi5124gp-b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mbi5124gp-b.step / mbi5124gp-b.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
mbi5124gp-b.step 315 KB You want the bare part, or you mark your own boards.
mbi5124gp-b-etched.step 2.9 MB You want the part with MBI5124GP-B already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 748 faces against 387 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: MBI datasheet (23 pp, sha256 0647b126ba039e32, retrieved 2026-08-17, tier: lcsc)
  • 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