NCP1054P136G

Product Overview

Category

NCP1054P136G belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various power supply systems, including switch-mode power supplies (SMPS), battery chargers, and LED drivers.

Characteristics

• High efficiency: The NCP1054P136G offers excellent power conversion efficiency, ensuring minimal energy loss during operation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Protection features: The IC incorporates various protection mechanisms such as overvoltage protection, overcurrent protection, and thermal shutdown, enhancing system reliability.
• Compact package: The NCP1054P136G is available in a compact and industry-standard package, facilitating easy integration into different circuit designs.
• Low standby power consumption: It consumes minimal power in standby mode, contributing to energy savings.

Package and Quantity

The NCP1054P136G is typically packaged in a small outline integrated circuit (SOIC) package. It is supplied in reels or tubes, with a standard quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 8V to 30V
• Output Voltage: 3.3V
• Maximum Output Current: 1.5A
• Switching Frequency: 100 kHz to 500 kHz
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC-8

Detailed Pin Configuration

The NCP1054P136G has eight pins arranged as follows:

1. VCC: Power supply pin
2. GND: Ground pin
3. FB: Feedback pin for regulating output voltage
4. COMP: Compensation pin for stability control
5. CS: Current sense pin for current regulation
6. SS: Soft-start pin for gradual power-up
7. DRAIN: Switching transistor drain pin
8. VCCSENSE: Voltage sensing pin for overvoltage protection

Functional Features

• Constant voltage (CV) and constant current (CC) modes: The NCP1054P136G supports both CV and CC modes, allowing it to regulate output voltage and current accurately.
• Frequency modulation: It employs frequency modulation techniques to optimize power conversion efficiency across different load conditions.
• Cycle-by-cycle current limiting: The IC ensures precise control of the output current by monitoring and limiting the current on a cycle-by-cycle basis.
• Soft-start function: The soft-start feature gradually ramps up the output voltage during startup, preventing excessive inrush current and improving system reliability.

Advantages and Disadvantages

Advantages

• High efficiency leads to energy savings.
• Wide input voltage range enables versatile applications.
• Compact package facilitates easy integration.
• Protection features enhance system reliability.
• Low standby power consumption contributes to energy efficiency.

Disadvantages

• Limited maximum output current may restrict certain high-power applications.
• Requires external components for complete power supply implementation.

Working Principles

The NCP1054P136G operates based on a pulse width modulation (PWM) control scheme. It regulates the output voltage by adjusting the duty cycle of the switching transistor. By continuously monitoring the feedback voltage, the IC adjusts the duty cycle to maintain a stable output voltage. The current sense pin allows accurate current regulation, ensuring safe operation within specified limits.

Detailed Application Field Plans

The NCP1054P136G finds extensive application in various power management systems, including: 1. Switch-mode power supplies (SMPS) for computers, televisions, and other electronic devices. 2. Battery chargers for portable electronics, electric vehicles, and renewable energy systems. 3. LED drivers for lighting applications, including residential, commercial, and automotive lighting.

Detailed and Complete Alternative Models

1. NCP1054P100G: Similar to NCP1054P136G but with a 10V output voltage.
2. NCP1054P150G: Similar to NCP1054P136G but with a higher maximum output current of 1.5A.
3. NCP1054P200G: Similar to NCP1054P136G but with a 20V output voltage.

These alternative models offer similar functionality and characteristics, allowing designers to choose the most suitable option based on specific requirements.

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