NCP1252EDR2G

The NCP1252EDR2G is an integrated circuit designed for switch-mode power supply (SMPS) applications, specifically in off-line power adapters and chargers. It is part of the NCP125x family from ON Semiconductor, known for its high efficiency and reliability. This device features a fixed frequency, quasi-resonant operation, which helps minimize electromagnetic interference (EMI) and improves efficiency across a range of load conditions.
Key features include a wide input voltage range, built-in over-voltage protection, under-voltage lockout, and thermal shutdown to enhance safety and robustness. The NCP1252EDR2G operates in both continuous and discontinuous modes, making it versatile for different design requirements. It also supports low standby consumption, complying with energy efficiency regulations.
The device is packaged in a compact SO-8 surface mount format, allowing for space-efficient designs. Overall, the NCP1252EDR2G is ideal for engineers looking to develop compact, efficient, and reliable power supply solutions.

The NCP1252EDR2G is a high-performance, off-line flyback switcher controller designed for power supply applications. Key features include:
1. Wide Input Voltage Range: Operates from 85V to 265V AC, suitable for universal input power supplies.
2. Integrated High-Voltage Start-Up Circuit: Eliminates the need for an external start-up resistor, enhancing efficiency.
3. Low Start-Up Current: Minimizes power consumption during no-load conditions.
4. Frequency Jittering: Reduces EMI by varying the switching frequency.
5. Over-Temperature Protection: Ensures safe operation under thermal stress.
6. Internal Circuitry for Automatic Restart: Protects against overload and short-circuit conditions.
7. Adjustable Output Voltage Regulation: Allows for flexibility in design and performance.
8. Compact Package: Available in a small SOIC-8 package, suitable for space-constrained applications.
These features make the NCP1252EDR2G ideal for power adapters, battery chargers, and other consumer electronics applications.

The NCP1252EDR2G is offered in a SOIC-8 (Small Outline Integrated Circuit) package type. This surface-mount package is commonly used for integrated circuits due to its compact size and efficiency in thermal management.

The NCP1252EDR2G is a high-efficiency power supply controller with a pin count of 8. It is designed for off-line flyback converters and is used in applications such as power adapters and chargers.
### Pin Functions:
1. VCC (Pin 1): Supply voltage input.
2. GND (Pin 2): Ground reference.
3. CSN (Pin 3): Current sense negative input.
4. CSP (Pin 4): Current sense positive input.
5. COMP (Pin 5): Compensation network connection for feedback control.
6. VIN (Pin 6): Input voltage sense, typically connected to the input of the flyback transformer.
7. RT (Pin 7): Timing resistor connection, sets oscillator frequency.
8. SW (Pin 8): Switch node for the power stage.
This IC features a range of protection features and supports various topologies, making it versatile for various power conversion applications.

The NCP1252EDR2G is manufactured by ON Semiconductor, a global supplier of semiconductor-based solutions. ON Semiconductor is known for its wide range of products, including power management, analog, RF, and logic devices. The company primarily serves various markets such as automotive, industrial, communications, consumer electronics, and computing. ON Semiconductor focuses on providing energy-efficient solutions, contributing to technology advancements in areas like electric vehicles, IoT, and renewable energy. Their commitment to innovation and sustainability positions them as a key player in the semiconductor industry.

The NCP1252EDR2G is a high-performance PWM controller primarily used in switch-mode power supplies (SMPS). Common application areas include AC-DC converters, power adapters, and low-power offline power supplies for consumer electronics, LED lighting, and telecommunications equipment. Its features support efficient power conversion, reducing standby power consumption and enhancing overall system reliability.

Equivalent products to the NCP1252EDR2G chip include the LM2596, TL494, and UC3843. These alternatives serve similar functions in power management and can be used in applications like switching power supplies. Always verify specific requirements such as voltage, current ratings, and features to ensure compatibility.