ON Semiconductor
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
NCP1246ALD065R2G
Zobrazit detail DataSheets

NCP1246ALD065R2G

Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High voltage converter, energy-efficient, compact size
  • Package: DFN-8 (Dual Flat No-Lead)
  • Essence: Switching Power Supply Controller
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Input Voltage Range: 9V to 38V
  • Output Voltage Range: 5V to 24V
  • Switching Frequency: 65kHz
  • Maximum Duty Cycle: 72%
  • Operating Temperature Range: -40°C to +125°C
  • Protection Features: Overvoltage Protection, Overcurrent Protection, Thermal Shutdown

Pin Configuration

The NCP1246ALD065R2G has the following pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. FB: Feedback pin for output voltage regulation
  4. COMP: Compensation pin for stability control
  5. CS: Current sense input for overcurrent protection
  6. SS: Soft-start capacitor connection
  7. DRAIN: High-voltage power switch drain
  8. SYNC: Synchronization input for multiple ICs

Functional Features

  • High Efficiency: The NCP1246ALD065R2G offers high efficiency in converting input voltage to regulated output voltage, resulting in reduced power consumption.
  • Compact Size: Its small package size makes it suitable for space-constrained applications.
  • Wide Input Voltage Range: The IC can operate with input voltages ranging from 9V to 38V, providing flexibility in various power supply designs.
  • Protection Mechanisms: It incorporates overvoltage protection, overcurrent protection, and thermal shutdown features to safeguard the circuit and connected devices.

Advantages

  • Energy-efficient power conversion
  • Compact size for space-constrained applications
  • Wide input voltage range allows for versatile designs
  • Protection mechanisms ensure safe operation

Disadvantages

  • Limited output voltage range (5V to 24V)
  • Requires external components for complete power supply implementation

Working Principles

The NCP1246ALD065R2G is a switching power supply controller that operates based on the principles of pulse width modulation (PWM). It regulates the output voltage by controlling the duty cycle of the high-voltage power switch. By rapidly switching the power switch on and off, it efficiently converts the input voltage to the desired output voltage. The feedback mechanism adjusts the duty cycle based on the difference between the actual output voltage and the desired voltage set by the user.

Application Field Plans

The NCP1246ALD065R2G is commonly used in various applications, including:

  1. Power adapters for consumer electronics
  2. LED lighting systems
  3. Industrial control systems
  4. Automotive electronics
  5. Telecommunications equipment

Its compact size, energy efficiency, and protection features make it suitable for these diverse application fields.

Alternative Models

Here are some alternative models that can be considered as alternatives to the NCP1246ALD065R2G:

  1. LM2576-ADJ: Adjustable Output Voltage, Buck Converter IC
  2. TPS5430: Synchronous Step-Down DC-DC Converter
  3. LT1370: High Efficiency Switching Regulator
  4. MC34063A: Step-Up/Step-Down/Inverting Switching Regulator

These alternative models offer similar functionality and can be used as replacements depending on specific design requirements.

Word count: 387 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací NCP1246ALD065R2G v technických řešeních

Sure! Here are 10 common questions and answers related to the application of NCP1246ALD065R2G in technical solutions:

  1. Q: What is NCP1246ALD065R2G? A: NCP1246ALD065R2G is a high-performance, fixed-frequency current-mode controller specifically designed for offline flyback converters.

  2. Q: What is the input voltage range for NCP1246ALD065R2G? A: The input voltage range for NCP1246ALD065R2G is typically between 85V and 265V AC.

  3. Q: What is the maximum output power that can be achieved with NCP1246ALD065R2G? A: The maximum output power depends on the specific design and application, but NCP1246ALD065R2G can handle power levels up to 65W.

  4. Q: Can NCP1246ALD065R2G be used in both isolated and non-isolated applications? A: Yes, NCP1246ALD065R2G can be used in both isolated and non-isolated applications, making it versatile for various power supply designs.

  5. Q: Does NCP1246ALD065R2G have built-in protection features? A: Yes, NCP1246ALD065R2G includes several built-in protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

  6. Q: What is the operating frequency of NCP1246ALD065R2G? A: NCP1246ALD065R2G operates at a fixed frequency of approximately 65kHz.

  7. Q: Can NCP1246ALD065R2G be used in dimmable LED lighting applications? A: Yes, NCP1246ALD065R2G can be used in dimmable LED lighting applications by incorporating additional circuitry for dimming control.

  8. Q: Is NCP1246ALD065R2G suitable for universal input voltage applications? A: Yes, NCP1246ALD065R2G is designed to handle a wide range of input voltages, making it suitable for universal input voltage applications.

  9. Q: What type of feedback control does NCP1246ALD065R2G support? A: NCP1246ALD065R2G supports primary-side regulation (PSR) feedback control, eliminating the need for an optocoupler or secondary-side feedback circuitry.

  10. Q: Are there any application notes or reference designs available for NCP1246ALD065R2G? A: Yes, ON Semiconductor provides application notes and reference designs that can help with the implementation of NCP1246ALD065R2G in various technical solutions.

Please note that these answers are general and may vary depending on the specific requirements and design considerations of your application. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.