New Product Recommendation: Zhongwei Aixin Launches a 250V Three-Phase Bridge
Background
Gate drivers are core, critical components in power conversion and motor control systems, responsible for interfacing the control signals with the power stage. MOSFET/IGBT It serves as a high-speed, reliable bridge between components. In electronic power systems—whether in new‑energy vehicle drive control, photovoltaic inverters, industrial variable‑frequency drives, or motor control systems—their core functionality hinges on the precise control provided by gate drivers.
Product Introduction
AiP2181 It is a product that acts on N Type power MOSFET and IGBT Three-phase bridge driver circuit for equal-power devices, with input logic compatibility. 3.3V/5V/15V , can be up to 250V Operates under voltage; features built-in shoot-through protection and dead-time to prevent simultaneous conduction of the upper and lower bridge arms, thereby avoiding device damage; built-in VCC and VBS The undervoltage protection circuit prevents the device from operating at excessively low voltages; built-in 3.3V/5V LDO 。
Product Advantages
Ultra-low static power consumption: quiescent current < 150uA , which can effectively reduce system power consumption and is well-suited for low-power, portable applications.
Integration 3.3V/5V LDO : The output voltage is selectable, enabling power supply to board-level system components, reducing the number of required components, and simplifying system wiring.
Compatible with mainstream models: supports SOP24、TSSOP24、QFN24、TSSOP20 Various forms of packaging
Key Features
Maximum High-Side Floating Offset Voltage 250Vl
Output current +1.2A/-1.5A
Input and output in phase
Input logic compatible 3.3V/5V/15V
Dead-time control function and shoot-through prevention function
VCC/VBS Undervoltage protection ( UVLO )
Built-in 3.3V/5V 100mA Load capacity LDO
Package type: SOP24、TSSOP24、QFN24、TSSOP20
Typical Application Diagram
Functional block diagram
Pin arrangement
Pin Description
AiP2181 Package Pin Description ( SOP24/TSSOP24 )
Application scenarios
Electric bicycles, electric tools, three-phase brushless motors
Conclusion
AiP2181 As a… 250V The three-phase bridge drive circuit, with its high voltage withstand capability, low power consumption, and high level of integration, is widely applicable to mainstream applications such as electric bicycles, portable power tools, and small-scale industrial control systems. The chip is fully integrated. 3.3V/5V LDO It simplifies the peripheral circuitry of the board-level system, optimizes costs, and enhances system integration and stability. Additionally, it features high‑current drive outputs and multiple built-in protection mechanisms, including undervoltage lockout and shoot-through prevention, delivering outstanding performance in three‑phase synchronous control accuracy, response speed, and long‑term reliability.
(Source: Zhongwei Aixin official website)
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