Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| DrivenConfiguration | Low-Side |
| ChannelType | Independent |
| NumberofDrivers | 2 |
| GateType | N-Channel MOSFET |
| Voltage-Supply | 4.5V ~ 20V |
| LogicVoltage-VILVIH | 1.2V, 1.8V |
| Current-PeakOutput(SourceSink) | 5A, 5A |
| InputType | Non-Inverting |
| Rise/FallTime(Typ) | 8ns, 8ns |
| OperatingTemperature | -40°C ~ 140°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Overview
Description
The NCP81071BDR2G is a high-performance, synchronous buck controller designed by ON Semiconductor. It is primarily utilized in applications requiring efficient power conversion from a higher voltage to a lower voltage. This controller supports a wide input voltage range and is capable of driving N-channel MOSFETs, making it suitable for various power management tasks in computing, communications, and consumer electronics.
Key features include a flexible switching frequency, typically adjustable from 150 kHz to 1 MHz, which allows for optimization between efficiency and component size. The NCP81071BDR2G also includes protections such as overcurrent, overvoltage, and undervoltage lockout, ensuring reliable performance under different operating conditions. Additionally, it offers a soft-start feature to reduce inrush current during startup and improve overall system stability.
Its compact design, efficiency in power conversion, and robust protection features make the NCP81071BDR2G a popular choice for designers seeking reliable voltage regulation solutions in both commercial and industrial applications.
Key features include a flexible switching frequency, typically adjustable from 150 kHz to 1 MHz, which allows for optimization between efficiency and component size. The NCP81071BDR2G also includes protections such as overcurrent, overvoltage, and undervoltage lockout, ensuring reliable performance under different operating conditions. Additionally, it offers a soft-start feature to reduce inrush current during startup and improve overall system stability.
Its compact design, efficiency in power conversion, and robust protection features make the NCP81071BDR2G a popular choice for designers seeking reliable voltage regulation solutions in both commercial and industrial applications.
Equivalent
The NCP81071BDR2G is a synchronous buck MOSFET driver. Equivalent products include the Texas Instruments LM5113, the Intersil ISL2111, the Infineon IR4427, the Microchip Technology MIC4427, and the Analog Devices ADP3120A. These alternatives serve similar purposes in driving MOSFETs in DC-DC converter applications. Always verify specifications to ensure compatibility with your specific application.
Features
The NCP81071BDR2G is a high-performance PWM controller designed for synchronous buck converters. Key features include:
1. Wide Input Voltage Range: Suitable for a broad range of applications with varying input conditions.
2. High-Efficiency: Optimized for efficiency in power conversion through synchronous rectification.
3. Adjustable Output: Allows customization of the output voltage for specific application needs.
4. Integrated MOSFET Drivers: Reduces external component count and simplifies design.
5. Fixed Frequency Operation: Ensures consistent and predictable performance.
6. Overcurrent Protection: Safeguards against excessive current conditions, enhancing reliability.
7. Thermal Shutdown: Protects the device from overheating by shutting down operations in high-temperature conditions.
8. Programmable Soft-Start: Controls the power-up sequence to prevent inrush currents.
9. UVLO (Undervoltage Lockout): Ensures the device operates only under safe voltage conditions.
These features make it suitable for applications like computing, telecom, and other electronics requiring efficient voltage regulation in compact form factors.
1. Wide Input Voltage Range: Suitable for a broad range of applications with varying input conditions.
2. High-Efficiency: Optimized for efficiency in power conversion through synchronous rectification.
3. Adjustable Output: Allows customization of the output voltage for specific application needs.
4. Integrated MOSFET Drivers: Reduces external component count and simplifies design.
5. Fixed Frequency Operation: Ensures consistent and predictable performance.
6. Overcurrent Protection: Safeguards against excessive current conditions, enhancing reliability.
7. Thermal Shutdown: Protects the device from overheating by shutting down operations in high-temperature conditions.
8. Programmable Soft-Start: Controls the power-up sequence to prevent inrush currents.
9. UVLO (Undervoltage Lockout): Ensures the device operates only under safe voltage conditions.
These features make it suitable for applications like computing, telecom, and other electronics requiring efficient voltage regulation in compact form factors.
Pinout
The NCP81071BDR2G is a high-performance driver integrated circuit typically used to drive MOSFETs in synchronous rectification applications. It comes in an 8-pin package. Below is a concise description of its pin functions:
1. IN (Pin 1): Input signal for the control logic. It determines the state of the output.
2. NC (Pin 2): No connection. It is often left unconnected in designs.
3. VCC (Pin 3): Power supply input for the chip, typically in the 4.5V to 13.2V range.
4. GND (Pin 4): Ground reference for the device.
5. HDRV (Pin 5): High-side gate drive output for the high-side MOSFET.
6. SW (Pin 6): Switch node connection, acts as a return path for the high-side driver.
7. BOOT (Pin 7): Bootstrap pin, used to provide the drive voltage higher than the input voltage for the high-side MOSFET.
8. LDRV (Pin 8): Low-side gate drive output for the low-side MOSFET.
This driver is commonly used in power supply and motor control applications, providing fast switching and protection features essential for efficient performance.
1. IN (Pin 1): Input signal for the control logic. It determines the state of the output.
2. NC (Pin 2): No connection. It is often left unconnected in designs.
3. VCC (Pin 3): Power supply input for the chip, typically in the 4.5V to 13.2V range.
4. GND (Pin 4): Ground reference for the device.
5. HDRV (Pin 5): High-side gate drive output for the high-side MOSFET.
6. SW (Pin 6): Switch node connection, acts as a return path for the high-side driver.
7. BOOT (Pin 7): Bootstrap pin, used to provide the drive voltage higher than the input voltage for the high-side MOSFET.
8. LDRV (Pin 8): Low-side gate drive output for the low-side MOSFET.
This driver is commonly used in power supply and motor control applications, providing fast switching and protection features essential for efficient performance.
Manufacturer
The NCP81071BDR2G is manufactured by ON Semiconductor, which is now known as onsemi. Onsemi is a leading semiconductor company that focuses on intelligent power and sensing technologies. The company provides a wide range of products and solutions aimed at improving energy efficiency, reducing global energy use, and supporting sustainable energy initiatives. Onsemi serves various industries, including automotive, industrial, cloud power, and Internet of Things (IoT), and is known for its innovations in power management, sensors, and connectivity.
Application
The NCP81071BDR2G is a high-performance dual-channel MOSFET driver commonly used in applications requiring efficient power management. Its primary application areas include power supplies for computing and industrial systems, DC-DC converters, power management for high-performance processors, and motor control systems. It is also used in synchronous rectification circuits, which are essential in improving the efficiency of power converters. Additionally, the driver is suitable for telecom and networking equipment, where precise power management is crucial. Its ability to drive large capacitive loads and provide rapid switching speeds makes it versatile for various high-speed power electronics applications.
Package
The NCP81071BDR2G is typically available in a SOIC-8 package. This package type is a small outline integrated circuit with 8 leads, suitable for surface mounting on printed circuit boards.
