NCP1250BSN100T1G

The NCP1250BSN100T1G is a pulse-width modulation (PWM) controller IC designed for power supply applications.It features a fixed frequency operation and a built-in power MOSFET, making it suitable for switch-mode power supply designs.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• VCC: Positive power supply
• FB: Feedback pin for voltage regulation
• COMP: Compensation pin for loop stability
• CS: Current sense input for overcurrent protection
• UVLO: Under Voltage Lock Out
• SD: Shutdown pin
• DRV: Gate driver output for power MOSFET control
• GND: Power ground

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the NCP1250BSN100T1G IC for a visual representation.

Key Features

• Fixed Frequency Operation: The NCP1250BSN100T1G operates at a fixed frequency, providing predictable performance in power supply designs.
• Built-in Power MOSFET: This IC integrates a power MOSFET, reducing external component count and simplifying design.
• Under Voltage Lock Out: The UVLO feature protects the system from low voltage conditions, ensuring safe operation.
• Overcurrent Protection: The current sense input allows for overcurrent protection, safeguarding the circuit and load.
• Shutdown Capability: The SD pin enables shutdown functionality for controlled power-down scenarios.

Note: For detailed technical specifications, please refer to the NCP1250BSN100T1G datasheet.

Application

• Switch-Mode Power Supplies: Ideal for use in switch-mode power supply designs for various electronic devices.
• Voltage Regulation: Suitable for applications requiring voltage regulation and efficient power management.
• Power Management: Used in power management systems to control and regulate power delivery.

Functionality

The NCP1250BSN100T1G is a PWM controller IC that provides stable and efficient power supply operation in a variety of applications.It offers essential features for reliable power management and control.

Usage Guide

• Power Supply Connection: Connect VCC (Pin 1) to the positive power supply and GND (Pin 8) to power ground.
• Feedback and Compensation: Use the FB and COMP pins to regulate the output voltage and ensure loop stability.
• Gate Driver Output: Drive the power MOSFET using the DRV pin to control the switching operation.

Frequently Asked Questions

Q: How does the NCP1250BSN100T1G handle overcurrent situations?
A: The NCP1250BSN100T1G features a current sense input (CS) for overcurrent protection, allowing it to detect and respond to overcurrent conditions.

Q: What is the purpose of the UVLO feature in the NCP1250BSN100T1G?
A: The Under Voltage Lock Out (UVLO) feature of the NCP1250BSN100T1G ensures that the IC operates within a safe voltage range, protecting the system from undervoltage conditions.