component
QX7135E38
Public Made by Adomby adom
QX Micro Devices LED Drivers, SOT-89. 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
markdownQX7135E38
QX Micro Devices · LED Drivers · SOT-89
QX7135E38 from QX Micro Devices, in a SOT-89. 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 | LED | passive | LED output pin connected to the LED cathode; maximum LED pin current is 500 mA and maximum voltage is 7 V. |
| 2 | GND | power_in | Power ground. |
| 3 | VDD | power_in | Supply voltage input, operating range 2.7V to 5.5V (maximum 7 V), with a ~4.7uF filter capacitor recommended close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | QX Micro Devices |
| Package | SOT-89 |
| Category | Display Modules / LED Drivers / Display Drivers |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage range | VIN | 2.7 | 5.5 | V | ILED =350mA | 4 | |
| Undervoltage protection threshold | VUVLO | 2.3 | 2.5 | 2.7 | V | ILED =350mA, VIN decreasing | 4 |
| Output current range | ILED | 100 | 380 | mA | VIN =3.6V | 5 | |
| Output current accuracy | ΔILED/ILED | -5 | 5 | % | ΔVO greater than 100mV | 5 | |
| Maximum voltage at VDD and LED | VMAX | 7 | V | VDD and LED pins | 4 | ||
| Maximum LED pin current | ILED_MAX | 500 | mA | 4 | |||
| Maximum power dissipation | PSOT-89-3 | 0.5 | W | SOT-89-3 package | 4 | ||
| Operating temperature range | TA | -20 | 85 | °C | 4 | ||
| Storage temperature range | TSTG | -40 | 120 | °C | 4 | ||
| Soldering temperature | TSD | 230 | 240 | °C | time less than 30 s | 4 | |
| ESD voltage (HBM) | VESD | 2000 | V | Human body model | 4 | ||
| Quiescent current | IDDQ | 250 | uA | VIN =5.0V | 4 | ||
| Dropout voltage | ΔVO | 150 | mV | Output current is 90% of set value | 4 | ||
| Overtemperature protection threshold | TOTP | 120 | °C | 4 | |||
| Load regulation | 2 | mA/V | VIN =3.6V, VLED from 0.2V to 3.0V | 5 | |||
| Line regulation | 2 | mA/V | VIN from 3.0V to 5.0V | 5 | |||
| Nominal output current (suffix 38) | ILED | 380 | mA | 2 |
CAD (KiCad official)
- Symbol:
QX7135E38 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
qx7135e38-etched.step/qx7135e38-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);qx7135e38.step/qx7135e38.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: QX Micro Devices datasheet (8 pp, sha256
eb96c525ed3cd0e7, retrieved 2026-10-22, 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: 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).