component
MT7285
Public Made by Adomby adom
MAXIC Tech LED Drivers, SOP-8-EP. 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
markdownMT7285
MAXIC Tech · LED Drivers · SOP-8-EP
MT7285 from MAXIC Tech, in a SOP-8-EP. 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 | ISEN | input | Over-current protection sense pin. |
| 2 | VDD | power_out | 5V reference voltage output; connect a ceramic capacitor of 1μF or larger to GND. |
| 3 | VIN | power_in | Chip supply pin with 4.2V to 40V input range; connect a 10μF ceramic capacitor to GND. |
| 4 | CS | input | LED current sense pin; the voltage between VIN and CS is 205mV. |
| 5 | COMP | passive | Compensation pin; connect a 22nF ceramic capacitor to GND to set loop stability and soft-start time. |
| 6 | ADJ | input | Brightness and on/off control pin; chip enables above 0.4V, LED current ramps 0% to 100% for 0.8V to 1.6V, clamped at 100% above 1.6V, PWM dimming 100Hz to 10kHz with amplitude above 1.6V, and shutdown if held below 200mV for 3.5ms. |
| 7 | OVP | input | Over-voltage protection sense pin; in boost and buck-boost the chip shuts off when OVP exceeds 1.2V, with 100mV comparator hysteresis. |
| 8 | DRV | output | Gate drive output connected to the external MOSFET gate. |
| 9 | GND | power_in | Ground pin (exposed pad of the ESOP8 package). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MAXIC Tech |
| Package | SOP-8-EP |
| Category | Display Modules / LED Drivers / Display Drivers |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input (battery) voltage | VBAT | 4.2 | 40 | V | VBAT=5V, TA=25°C | 3 | |
| Maximum duty cycle | Dmax | 85 | 95 | % | VIN-VCS=0.1V | 3 | |
| Analog dimming voltage range | 0.8 | 1.6 | V | 3 | |||
| PWM dimming frequency | 0.3 | 10 | kHz | Note 2: guaranteed by design | 3 | ||
| Shutdown current | Ishutdown | 30 | μA | VADJ=0V | 3 | ||
| Quiescent current (no switching) | IQ | 280 | μA | Vcomp=0V | 3 | ||
| Switching frequency | fSW | 450 | kHz | 3 | |||
| OVP reference voltage | OV | 1.2 | V | 3 | |||
| OVP hysteresis | 100 | mV | 3 | ||||
| Enable voltage | VEN | 0.8 | V | ADJ rising | 3 | ||
| ADJ pin pull-up current | 1 | uA | ADJ=0V | 3 | |||
| ADJ shutdown delay | 3.5 | ms | ADJ pin pulled low | 3 | |||
| Current sense reference | VIN-VCS | 205 | mV | 3 | |||
| OTP threshold | OTP | 160 | °C | 3 | |||
| OTP hysteresis | 30 | °C | 3 | ||||
| VIN/CS/OVP pin voltage | -0.3 | 40 | V | 3 | |||
| Other pins voltage | 6 | V | printed as +0.3V to 6V | 3 | |||
| Storage temperature | -55 | 150 | °C | 3 | |||
| Supply voltage | 4.2 | 40 | V | 3 | |||
| Output voltage | 40 | V | printed Vin to 40V | 3 | |||
| Operating temperature | -40 | 125 | °C | 3 | |||
| Thermal resistance junction to ambient | RθJA | 85 | °C/W | Note 1 | 3 | ||
| Thermal resistance junction to case surface | RθJC | 50 | °C/W | Note 1 | 3 |
CAD (KiCad official)
- Symbol:
MT7285 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
mt7285-etched.step/mt7285-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mt7285.step/mt7285.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MAXIC Tech datasheet (10 pp, sha256
07a01f8a32b824aa, retrieved 2026-10-23, 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).