component
XL9502
Public Made by Adomby adom
XLSEMI LED Drivers, SOP-8. Pinout cross-checked by two models against 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
markdownXL9502
XLSEMI · LED Drivers · SOP-8
XL9502 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 0.23V reference voltage; absolute maximum voltage is -0.3 to 7V. |
| 2 | TEST | unconnected | Internal test pin that must be left floating in system applications. |
| 3 | VC | passive | Internal voltage regulator bypass capacitor pin; a 1uF capacitor must be connected between VIN and VC. |
| 4 | VIN | power_in | Power input supporting 5V to 45V operation (absolute max 50V); a capacitor must be connected in parallel between VIN and GND to remove noise. |
| 5 | SW | output | Power switch output pin and the switching node of the output power stage; pins 5 and 6 are both SW. |
| 6 | SW | output | Power switch output pin and the switching node of the output power stage; pins 5 and 6 are both SW. |
| 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℃ | 4 |
| Efficiency | η | 93.3 | % | VIN=12V, VOUT=9.9V, IOUT=0.3A | 4 | ||
| Efficiency | η | 95.6 | % | VIN=12V, VOUT=9.9V, IOUT=0.9A | 4 | ||
| Operating voltage | VIN | 5 | 45 | V | TA=25℃, VIN=12V, IOUT=0.3A | 4 | |
| Input undervoltage lockout | VIN_UVLO | 4.5 | V | 4 | |||
| Quiescent supply current | IQ | 2.5 | 5 | mA | VCS=2V | 4 | |
| Oscillation frequency | FOSC | 160 | 200 | 240 | KHz | 4 | |
| Switch current limit | IL | 2.5 | A | 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 | 145 | ℃ | 4 | |||
| Thermal shutdown hysteresis | TD | 40 | ℃ | 4 | |||
| Maximum duty cycle | DMAX | 100 | % | VCS=0V | 4 | ||
| Input voltage | VIN | -0.3 | 50 | V | 3 | ||
| VC pin voltage | VC | -0.3 | V | max is VIN | 3 | ||
| Output switch pin voltage | VSW | -0.3 | V | max is VIN | 3 | ||
| Current sense pin voltage | VCS | -0.3 | 7 | V | 3 | ||
| Operating junction temperature | TJ | -40 | 150 | ℃ | 3 | ||
| Storage temperature range | TSTG | -65 | 150 | ℃ | 3 | ||
| Lead temperature | TLEAD | 260 | ℃ | soldering 10 seconds | 3 | ||
| ESD (human body model) | 2500 | V | >2500 V | 3 | |||
| Thermal resistance junction to ambient | RJA | 100 | ℃/W | SOP8, no external heatsink | 3 | ||
| Input voltage range | VIN | 5 | 45 | V | 1 | ||
| Ambient operating temperature | -40 | 125 | ℃ | Grade 1 | 1 |
CAD (KiCad official)
- Symbol:
XL9502 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
xl9502-etched.step/xl9502-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xl9502.step/xl9502.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XLSEMI datasheet (15 pp, sha256
17e97dcca430af01, retrieved 2026-10-26, 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, primaryclaude-sonnet-5-5(text), consensusclaude-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).