component
MS3111S
Public Made by Adomby adom
Hangzhou Ruimeng Tech Brushed DC Motor Drivers, SOT-23-6. 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
markdownMS3111S
Hangzhou Ruimeng Tech · Brushed DC Motor Drivers · SOT-23-6
MS3111S from Hangzhou Ruimeng Tech, 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 | OUT2 | output | H-bridge output 2, which goes high-Z in sleep mode (IN1=IN2=0) and follows the bridge truth table otherwise (H when IN1=0/IN2=1 is reverse and L when IN1=1/IN2=0 is forward, with brake at IN1=IN2=1). |
| 2 | GND | power_in | Ground pin; the datasheet recommends isolating the motor ground wiring from other grounds in the board layout. |
| 3 | OUT1 | output | H-bridge output 1, which goes high-Z in sleep mode (IN1=IN2=0) and drives the motor with up to 0.8A output current. |
| 4 | VCC | power_in | Logic and supply pin rated 1.8V to 6V (absolute maximum -0.3 to 6V), which should be bypassed to GND with a 0.1uF ceramic capacitor placed as close to the pin as possible. |
| 5 | IN1 | input | PWM control input 1 with an internal 100kΩ pull-down to GND, rated -0.5 to 6V absolute maximum, with logic levels referenced to VCC. |
| 6 | IN2 | input | PWM control input 2 with an internal 100kΩ pull-down to GND, rated -0.5 to 6V absolute maximum, with logic levels referenced to VCC. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Hangzhou Ruimeng Tech |
| Package | SOT-23-6 |
| Category | Motor Driver ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| 逻辑电源 (logic supply voltage) | VCC | 1.8 | 6 | V | 3 | ||
| 输出电流 (output current) | IOUT | 0 | 0.8 | A | 3 | ||
| 外部 PWM 频率 (external PWM frequency) | fPWM | 0 | 250 | kHZ | 3 | ||
| 逻辑输入电压 (logic input voltage) | Vlogic | 0 | 6 | V | 3 | ||
| 工作温度 (operating temperature) | Ta | -40 | 85 | ℃ | 3 | ||
| VCC 工作电压 (VCC operating voltage) | VCC | 1.8 | 6 | V | 3 | ||
| VCC 工作电流 1 (operating current, no PWM) | IVCC | 100 | 550 | uA | VCC=5V，无 PWM | 3 | |
| VCC 工作电流 2 (sleep current) | IVCCQ | 0.01 | 1 | uA | VCC=5V，IN1=IN2=0 省电模式 | 3 | |
| 上臂+下臂桥导通电阻 (high-side + low-side on-resistance) | RdsON | 850 | 1000 | mΩ | VCC=5V，Io=500mA; | 3 | |
| 关断态漏电流 (off-state leakage current) | IOFF | -200 | 200 | nA | Vout=0V | 3 | |
| 逻辑低输入电流 (logic low input current) | IIL | -5 | 5 | uA | Vin=0 | 3 | |
| 过温保护 (thermal shutdown) | TSD | 150 | 160 | 180 | ℃ | 3 | |
| 最大工作电压 (maximum supply voltage) | VCC | -0.3 | 6 | V | 2 | ||
| 控制输入电压范围 (control input voltage) | INX | -0.5 | 6 | V | 2 | ||
| 驱动峰值电流 (peak drive current) | Imax | 0 | 1 | A | 2 | ||
| 结温 (junction temperature) | Tjmax | -40 | 150 | ℃ | 2 | ||
| 存储温度 (storage temperature) | Tstg | -60 | 150 | ℃ | 2 | ||
| 静电保护 (ESD, human body model) | ESD | -2500 | 2500 | V | 人体模式 | 2 | |
| T5 输出上升沿 (output rise time) | T5 | 30 | 188 | ns | TA = 25°C, VCC = 5 V, RL = 20 Ω | 4 | |
| T6 输出下降沿 (output fall time) | T6 | 30 | 188 | ns | TA = 25°C, VCC = 5 V, RL = 20 Ω | 4 | |
| T1 启动时间 (start-up time) | T1 | 300 | ns | TA = 25°C, VCC = 5 V, RL = 20 Ω | 4 | ||
| T2 关断时间 (shutdown time) | T2 | 300 | ns | TA = 25°C, VCC = 5 V, RL = 20 Ω | 4 | ||
| T3 输入高到输出高延迟 (input high to output high delay) | T3 | 160 | ns | TA = 25°C, VCC = 5 V, RL = 20 Ω | 4 | ||
| T4 输入低到输出低延迟 (input low to output low delay) | T4 | 160 | ns | TA = 25°C, VCC = 5 V, RL = 20 Ω | 4 | ||
| 逻辑高输入电流 (logic high input current) | IIH | 50 | uA | Vin=3.3V | 3 | ||
| 下拉电阻 (pull-down resistance) | Rpd | 100 | kΩ | 3 | |||
| 过温保护迟滞 (thermal shutdown hysteresis) | ΔTSD | 22 | ℃ | 3 |
CAD (KiCad official)
- Symbol:
MS3111S - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
ms3111s-etched.step/ms3111s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ms3111s.step/ms3111s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Hangzhou Ruimeng Tech datasheet (9 pp, sha256
29e3f21b89e2a17c, retrieved 2026-10-18, 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-haiku-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).