NCP1256ASN100T1G

Product Overview

Category

NCP1256ASN100T1G belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is commonly used in various electronic devices and systems to regulate and control power supply, ensuring efficient and reliable operation.

Characteristics

• High efficiency: NCP1256ASN100T1G offers excellent power conversion efficiency, minimizing energy losses during operation.
• Wide input voltage range: It can handle a broad range of input voltages, making it suitable for diverse applications.
• Compact package: The IC is available in a small surface-mount package, enabling space-saving designs.
• Low standby power consumption: NCP1256ASN100T1G features low power consumption in standby mode, enhancing energy efficiency.

Package and Quantity

The NCP1256ASN100T1G is typically packaged in a compact and robust SOT-23-5 package. It is supplied in reels, with each reel containing a specified quantity of ICs.

Specifications

• Input Voltage Range: 4.5V to 25V
• Output Voltage: 5V
• Maximum Output Current: 100mA
• Switching Frequency: 65kHz
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The NCP1256ASN100T1G has five pins arranged as follows:

```

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| | --| VCC | --| GND | --| FB | --| COMP | --| CS | |_______| ```

1. VCC: Power supply pin.
2. GND: Ground reference pin.
3. FB: Feedback pin for regulating the output voltage.
4. COMP: Compensation pin for stability control.
5. CS: Current sense pin for current regulation.

Functional Features

• Voltage Regulation: NCP1256ASN100T1G provides precise voltage regulation, ensuring a stable output voltage even under varying load conditions.
• Overcurrent Protection: The IC incorporates overcurrent protection to safeguard the circuit and connected devices from excessive current flow.
• Soft Start: It includes a soft start feature that gradually ramps up the output voltage, preventing sudden voltage surges during startup.
• Frequency Foldback: NCP1256ASN100T1G employs frequency foldback to maintain high efficiency at light loads, reducing power dissipation.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced energy consumption.
• Wide input voltage range allows for versatile applications.
• Compact package enables space-saving designs.
• Low standby power consumption enhances energy efficiency.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Fixed output voltage may not be suitable for all scenarios requiring variable voltage levels.

Working Principles

NCP1256ASN100T1G operates based on a pulse width modulation (PWM) control scheme. It regulates the output voltage by adjusting the duty cycle of the switching signal, which controls the power delivered to the load. By continuously monitoring the feedback voltage, the IC adjusts the duty cycle to maintain the desired output voltage.

Application Field Plans

The NCP1256ASN100T1G finds applications in various fields, including but not limited to: - Consumer electronics: Power supply for portable devices, battery chargers, etc. - Industrial automation: Control systems, motor drives, etc. - Automotive electronics: LED lighting, infotainment systems, etc. - Telecommunications: Power management for network equipment, routers, etc.

Alternative Models

• NCP1256ASN50T1G: Similar to NCP1256ASN100T1G but with a maximum output current of 50mA.
• NCP1256ASN200T1G: Similar to NCP1256ASN100T1G but with a maximum output current of 200mA.
• NCP1256ASN500T1G: Similar to NCP1256ASN100T1G but with a maximum output current of 500mA.

These alternative models provide options for different output current requirements while maintaining similar characteristics and functionality.

In conclusion, the NCP1256ASN100T1G is a highly efficient integrated circuit designed for power management applications. Its compact package, wide input voltage range, and low standby power consumption make it suitable for various electronic devices and systems. While it has limitations in terms of maximum output current and fixed output voltage, it offers several advantages such as high efficiency and precise voltage regulation.