MBI5252GP-A 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 reference for control logic and constant-current sinks.
2	SDI	input	Serial data input to the 16-bit shift register. Sampled by DCLK rising edge with 5 ns setup / 6 ns hold. CMOS logic level (VIH ≥ 0.7*VDD).
3	DCLK	input	Data clock input; shifts SDI data on rising edge and clocks command information when LE is asserted. Max 30 MHz.
4	LE	input	Data strobe / latch enable. Also carries command information decoded together with DCLK. Internal pull-down resistor 250-800 kΩ (typ. 450 kΩ).
5	OUT0	output	Constant-current sink output for LED channel 0. Sustaining voltage up to 17 V; programmable 0.5-20 mA (5 V VDD) via R-EXT.
6	OUT1	output	Constant-current sink output for LED channel 1.
7	OUT2	output	Constant-current sink output for LED channel 2.
8	OUT3	output	Constant-current sink output for LED channel 3.
9	OUT4	output	Constant-current sink output for LED channel 4.
10	OUT5	output	Constant-current sink output for LED channel 5.
11	OUT6	output	Constant-current sink output for LED channel 6.
12	OUT7	output	Constant-current sink output for LED channel 7.
13	OUT8	output	Constant-current sink output for LED channel 8.
14	OUT9	output	Constant-current sink output for LED channel 9.
15	OUT10	output	Constant-current sink output for LED channel 10.
16	OUT11	output	Constant-current sink output for LED channel 11.
17	OUT12	output	Constant-current sink output for LED channel 12.
18	OUT13	output	Constant-current sink output for LED channel 13.
19	OUT14	output	Constant-current sink output for LED channel 14.
20	OUT15	output	Constant-current sink output for LED channel 15.
21	GCLK	input	Gray-scale clock input. Counts against PWM data to determine per-channel on-time. Max 33 MHz (16.6 MHz when GCLK multiplier is enabled).
22	SDO	output	Serial data output; drives SDI of the next cascaded MBI5252 driver. Push-pull CMOS; IOH/IOL = ±1.0 mA, VOH = VDD-0.4 V, VOL = 0.4 V.
23	R-EXT	passive	External reference-resistor terminal (Rext) that sets the full-scale output current for all 16 channels. Typical range ~1.4 kΩ (10 mA) to 14 kΩ (1 mA).
24	VDD	power_in	3.3 V / 5 V logic supply (3.0-5.5 V absolute range). Bypass to GND close to the pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

MBI5252GP-A
MBI5252GP-AGFN

CAD (KiCad official)

Symbol: MBI5252GP-A
Footprint: Package_SO:SSOP-24_5.3x8.2mm_P0.65mm
3D model: SSOP-24 (KiCad packages3D, STEP)

Provenance

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

Datasheet: MBI datasheet (29 pp, sha256 e13740d71b82c97e, 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