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Contents

README

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XL9522

XLSEMI · LED Drivers · SOP-8

XL9522 from XLSEMI, in a SOP-8. 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 CS input Output current sense pin with a CS reference voltage of 0.23V (IOUT = 0.23/RCS).
2 EN input Enable pin, active low: low level operates, high level shuts down, and it is treated as low when floating (VEN_H 1.4V shutdown, VEN_L 0.8V on).
3 VC passive Internal voltage regulator bypass capacitor pin, requiring a 1uF capacitor connected between VIN and VC.
4 VIN power_in Power supply input pin supporting a 5V to 45V DC operating range, requiring an electrolytic capacitor between VIN and GND to suppress noise.
5 SW power_out Power switch output pin, the switching node of the output power stage.
6 SW power_out Power switch output pin, the switching node of the output power stage.
7 GND power_in Ground pin.
8 GND power_in Ground pin.

Key specifications

Parameter Value
Manufacturer XLSEMI
Package SOP-8
Category LED Drivers
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
CS voltage VCS 220.8 230 239.2 mV VIN=12V, VOUT=3.3V, IOUT=0.3A, TA=25°C 4
Operating voltage VIN 5 45 V TA=25°C, VIN=12V, VEN=0V 4
Oscillation frequency FOSC 127 150 172 KHz 4
Shutdown current IS 70 200 uA VEN=2V 4
Quiescent current IQ 2.8 5 mA VCS=2V 4
Switch current limit IL 2.5 A VCS=0V 4
Efficiency η 92.1 % VIN=12V, VOUT=9.9V, IOUT=0.3A 4
Efficiency η 94.3 % VIN=24V, VOUT=16.5V, IOUT=0.6A 4
EN high threshold (shutdown) VEN_H 1.4 V 4
EN low threshold (on) VEN_L 0.8 V 4
EN shutdown delay time TEN 1 mS 4
High-side on-resistance RDS(ON)H 68 mΩ 4
Low-side on-resistance RDS(ON)L 50 mΩ 4
Thermal shutdown temperature TSD 160 ℃ 4
Thermal shutdown hysteresis TD 20 ℃ 4
Maximum duty cycle DMAX 90 % 4
Input voltage VIN -0.3 50 V 3
Enable pin voltage VEN -0.3 7 V 3
Current sense pin voltage VCS -0.3 7 V 3
Output switch pin voltage VSW -0.3 V -0.3 to VIN 3
Internal regulator bypass pin voltage VC -0.3 V -0.3 to VIN 3
Operating junction temperature TJ -40 150 oC 3
Storage temperature range TSTG -65 150 oC 3
Lead temperature TLEAD 260 oC soldering 10 seconds 3
ESD (HBM) ESD 7000 V >7000 V 3
Thermal resistance junction to ambient RJA 100 oC/W SOP8, no external heatsink 3
Recommended operating voltage VIN 5 45 V 1
Operating ambient temperature TA -40 125 ℃ Grade 1 1

CAD (KiCad official)

  • Symbol: XL9522
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: xl9522-etched.step / xl9522-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xl9522.step / xl9522.glb are the bare package body.

Provenance

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

  • Datasheet: XLSEMI datasheet (15 pp, sha256 f360b9f04b43efca, retrieved 2026-10-24, tier: manufacturer)
  • 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 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (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).

Datasheet PDF