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MX9352

Mixic · LED Drivers · SOT-23-6

MX9352 from Mixic, in a SOT-23-6. 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 LX output Power switch drain (LX node) of the internal FET; absolute maximum pin voltage is 20 V, and the pin floats in an LED open-circuit condition.
2 GND power_in Ground reference; the datasheet recommends a good ground connection for the chip GND and a separate return for the input bypass capacitor.
3 IRC output Open-drain IR-CUT output that must be pulled up through a resistor to an appropriate potential; it is logic high when the chip is enabled (EN low) and logic low when disabled (EN high), with VIRC absolute maximum 20 V and output low of 0.2 V max at 1 mA.
4 EN input Chip enable input; logic high (≥2.5 V) turns the chip off and logic low (≤1.2 V) turns it on, with an absolute maximum pin voltage of 20 V.
5 VIN power_in Chip supply input, operating from 3 V to 17 V (12 V typical), with an absolute maximum pin voltage of 20 V; the input bypass capacitor must be placed as close to this pin as possible.
6 SEN input Current sense input; the LED current is set by a resistor RS connected between VIN and SEN (ILED = 0.1 V / RSEN, RSEN ≥ 0.083 Ω), and the sense voltage must not exceed VIN ± 0.7 V.

Key specifications

Parameter Value
Manufacturer Mixic
Package SOT-23-6
Category LED Drivers
Pins 6

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
各引脚电压 VIN、VLX、VEN、VIRC (pin voltage max) 20 V 2
采样端电压 Sense pin voltage (VSEN) VSEN -0.7 0.7 V Printed as VIN±0.7 V, i.e. relative to VIN 2
热损耗 Power dissipation PD 0.55 W 2
封装热阻抗 Thermal resistance junction-to-ambient, SOT23-6 θJA 180 ℃/W SOT23-6 package 2
最高工作结温 Maximum operating junction temperature TJ 125 ℃ 2
焊接温度 Soldering temperature 260 ℃ 10 S 2
储存温度范围 Storage temperature Tstg -65 150 ℃ 2
电源电压 Supply voltage VIN 3 12 17 V 3
结温范围 Junction temperature range TJ -40 125 ℃ VIN=12V 3
工作温度范围 Operating ambient temperature TA -40 85 ℃ 3
VIN 输入电压 Input voltage VIN 3 12 17 V 3
IQ 静态电流 Quiescent current IQ 200 uA EN=0V 3
ISHDN 关断电流 Shutdown current ISHDN 30 uA EN=3V 3
VREF 内部参考电压 Internal reference voltage (VIN-VSEN) VREF 100 mV VIN -VSEN 3
R(DS)ON FET 低导通内阻 On-resistance R(DS)ON 100 mΩ 3
ILIMI FET 主电流限制 Main current limit ILIMI 2 A 3
VIHEN EN 输入高电平 EN high-level input VIHEN 2.5 V 3
VILEN EN 输入低电平 EN low-level input VILEN 1.2 V 3
IIRC IRC 输出低电平 IRC output low level IIRC 0.2 V IIRC=1mA 3
VIN.UVLO上升阈值 UVLO rising threshold VIN.UVLO 2.5 V 3
UVLO.HYS UVLO 迟滞 UVLO hysteresis UVLO.HYS 0.2 V 3
FSW 开关频率 Switching frequency FSW 0.8 1 1.2 MHZ 3
TON.MIN 最小开启时间 Minimum on-time TON.MIN 100 nS 3
DMAX 最大占空比 Maximum duty cycle DMAX 90 % 3
TSD Thermal shutdown temperature TSD 150 ℃ 3
THYS Thermal shutdown hysteresis THYS 20 ℃ 3

CAD (KiCad official)

  • Symbol: MX9352
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: mx9352-etched.step / mx9352-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mx9352.step / mx9352.glb are the bare package body.

Provenance

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

  • Datasheet: Mixic datasheet (8 pp, sha256 f79969afb6d8c8ee, retrieved 2026-10-17, 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, primary claude-haiku-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