English Translation (Adapted for Product Datasheet/Industry Promotion)

The core requirements for fan drives are "Precise Control + Low Noise" – and the MS39747TEA excels in both aspects:

1. Hall Sensorless Design: Cost & Size Reduction

Adopting sensorless sinusoidal drive technology, it detects rotor position via motor back electromotive force (back EMF), eliminating Hall elements entirely. Taking a white goods fan project as an example, it reduces sensor costs by ¥3-5 per unit – translating to savings of ¥300,000-500,000 for a batch of 100,000 units. Meanwhile, it reduces sensor solder points and PCB footprint, enabling a 20% reduction in driver board size to fit the compact layout of small fans.

2. Low-Noise Operation: Enhanced User Experience

The sinusoidal drive algorithm, combined with slew rate control, ensures smooth changes in motor winding current. This reduces fan vibration amplitude by 30% and noise by 5-10dB compared to traditional square-wave drives. Whether for household silent fans or automotive cabin ventilation fans, it achieves the "high-speed yet quiet" performance.

3. Soft-Start Protection: Extended Fan Lifespan

Built-in soft-start functionality allows the fan speed to rise slowly from 0 to the target value at startup, avoiding instantaneous high-current impact on motor windings. This not only lowers startup noise but also reduces bearing wear, extending fan service life by over 20% – making it particularly suitable for automotive cooling fans that require long-term operation.

English Translation (Adapted for Technical Datasheet/Product Application Guide)

The MS39747TEA is thoughtfully designed for "ease of use", significantly lowering the development barrier:

1. Compact Package Saves Space

Adopting an eTSSOP20 package with dimensions of only 6.5mm×4.2mm, it is 30% smaller than traditional discrete drive circuits. Ideal for the compact PCB layouts of household and automotive fans, it eliminates the need to reserve excessive space for the driver IC.

2. Clear Pin Definitions for Efficient Debugging

Its 20 pins have clearly defined functions – three-phase outputs (OUTA/OUTB/OUTC), power supply (VBB), fault indication (nFAULT), and other pins are easy to identify at a glance. Even novice engineers can quickly recognize them, eliminating the need to repeatedly check the datasheet during debugging.

3. Mature Packaging Solution for Hassle-Free Mass Production

With packaging specifications of 3,000 units per reel, 8 reels per box, and 24,000 units per carton, it is fully compatible with automated surface mount technology (SMT) production.

English Translation (Adapted for Technical Guide/Product Application Manual)

1. Core Adaptation Scenarios

White Goods Fan Sector

Household floor fans, table fans, air circulators: The sensorless design reduces costs, low-noise drive enhances user experience, and EEPROM independent operation eliminates the need for an MCU.

Automotive Fan Sector

Engine cooling fans, cabin ventilation fans: Wide temperature range + full protection withstands harsh automotive environments, and soft-start prevents impact to extend service life.

2. Usage Precautions

Key Wiring Requirements

CP1 and CP2 pins require external 0.1μF and 0.22μF X7R capacitors respectively, and the capacitors must be placed close to the pins to ensure stable charge pump voltage;

The EPAD heat sink is recommended to be grounded to improve heat dissipation efficiency and anti-interference capability.

Parameter Configuration

Overvoltage protection (OVP) and undervoltage protection (UVP) thresholds can be adjusted via EEPROM:

For household fans: Recommended 19V OVP + 3.85V UVP;

For automotive fans: Recommended 36V OVP + 8.65V UVP.

ESD Protection

Wear an anti-static wristband during operation, and ground the equipment casing and tools to avoid ESD damage to the MOS circuit.

English Translation (Adapted for Product Datasheet Conclusion/Marketing Copy)

The advantages of the MS39747TEA are clear and distinct:

Sensorless design reduces costs

Low-noise drive enhances user experience

Comprehensive protection prevents malfunctions

Flexible control adapts to multiple scenarios

Whether for cost-effective household white goods fans or high-reliability automotive fans, this driver IC simplifies design, cuts costs, and boosts product competitiveness.

If your fan drive project is plagued by issues such as high costs, excessive noise, or inadequate protection, try the MS39747TEA. For the complete datasheet or reference application circuits, please contact Junmin Technology to obtain the relevant materials.

是一家专注于技术开发、方案提供、元器件销售为主的高新技术企业，立足于深圳，成立于2008年。在华东苏州、广东佛山、湖南长沙、香港设有办事处。始终秉承“开拓创新、务实高效”的企业精神。以富足的心态，提供有竞争力的解决方案和服务，持续为客户创造最大价值。

产品涉及电机驱动IC、霍尔IC、存储IC、MCU、MOS、IPM、温湿度传感器、VCM音圈马达等。

联系我们：18926468515（微信同号）

深圳市龙华区上芬社区融创智汇大厦C座806

微信号丨18926468515

网站丨www.junmintech.cn