NCP1244BD065R2G
Basic Information Overview
- Category: Integrated Circuit (IC)
- Use: Power Management
- Characteristics: High efficiency, low standby power consumption
- 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: 85V to 265V AC
- Output Voltage: 5V DC
- Maximum Output Current: 1.5A
- Frequency Range: 50Hz to 60Hz
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The NCP1244BD065R2G has the following pin configuration:
- VCC: Power supply input
- GND: Ground reference
- FB: Feedback pin for output voltage regulation
- COMP: Compensation pin for stability control
- CS: Current sense pin for current limit protection
- SS: Soft-start pin for controlled startup
- HV: High-voltage pin for primary-side sensing
- DRAIN: Drain pin for power MOSFET connection
Functional Features
- Primary-side regulation for improved efficiency
- Built-in high-voltage startup circuitry
- Overvoltage and overcurrent protection
- Frequency jittering for reduced EMI emissions
- Adjustable soft-start time for controlled startup
Advantages and Disadvantages
Advantages: - High efficiency resulting in energy savings - Low standby power consumption - Compact package size for space-constrained applications - Wide input voltage range for universal compatibility
Disadvantages: - Limited maximum output current of 1.5A - Relatively high operating temperature range
Working Principles
The NCP1244BD065R2G is a switching power supply controller that operates in a primary-side regulation mode. It uses a high-voltage startup circuit to initiate the power supply operation. The feedback pin (FB) regulates the output voltage by adjusting the duty cycle of the power MOSFET connected to the drain pin (DRAIN). The current sense pin (CS) monitors the output current and provides overcurrent protection. The compensation pin (COMP) ensures stability of the control loop, while the soft-start pin (SS) controls the startup time.
Detailed Application Field Plans
The NCP1244BD065R2G is commonly used in various applications, including: - AC-DC power supplies - LED lighting systems - Home appliances - Industrial equipment - Consumer electronics
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to the NCP1244BD065R2G are: - NCP1250AD100R2G - NCP1261ADR2G - NCP1271ADR2G - NCP1280DR2G - NCP1294ADR2G
These models offer similar functionality and characteristics, providing flexibility in design choices.
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技術ソリューションにおける NCP1244BD065R2G の適用に関連する 10 件の一般的な質問と回答をリストします。
Sure! Here are 10 common questions and answers related to the application of NCP1244BD065R2G in technical solutions:
Q: What is NCP1244BD065R2G? A: NCP1244BD065R2G is a high-performance integrated circuit (IC) designed for offline flyback converters used in power supply applications.
Q: What is the input voltage range supported by NCP1244BD065R2G? A: The input voltage range supported by NCP1244BD065R2G is typically between 85V and 265V AC.
Q: What is the maximum output power that can be achieved using NCP1244BD065R2G? A: NCP1244BD065R2G can support a maximum output power of up to 65W.
Q: Can NCP1244BD065R2G operate in continuous or discontinuous conduction mode? A: NCP1244BD065R2G can operate in both continuous and discontinuous conduction modes, depending on the load conditions.
Q: Does NCP1244BD065R2G have built-in protection features? A: Yes, NCP1244BD065R2G includes various protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.
Q: What is the typical switching frequency of NCP1244BD065R2G? A: The typical switching frequency of NCP1244BD065R2G is around 66 kHz.
Q: Can NCP1244BD065R2G be used in dimmable LED lighting applications? A: Yes, NCP1244BD065R2G can be used in dimmable LED lighting applications by incorporating external circuitry for dimming control.
Q: What is the recommended operating temperature range for NCP1244BD065R2G? A: The recommended operating temperature range for NCP1244BD065R2G is typically between -40°C and 125°C.
Q: Does NCP1244BD065R2G require an external start-up resistor? A: No, NCP1244BD065R2G does not require an external start-up resistor as it has an internal high-voltage start-up circuit.
Q: Is NCP1244BD065R2G RoHS compliant? A: Yes, NCP1244BD065R2G is RoHS (Restriction of Hazardous Substances) compliant, ensuring it meets environmental regulations.
Please note that these answers are general and may vary depending on specific application requirements and datasheet specifications.