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NCP1937C1DR2G
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NCP1937C1DR2G

Overview

Product Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: DFN-10 (3x3mm)

Essence: The NCP1937C1DR2G is a power management IC designed for various applications requiring efficient power conversion.

Packaging/Quantity: The NCP1937C1DR2G is available in tape and reel packaging, with 3000 units per reel.

Specifications

The specifications of the NCP1937C1DR2G include:

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage Range: 0.8V to 6V
  • Maximum Output Current: 3A
  • Switching Frequency: 500kHz
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The NCP1937C1DR2G has the following pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. FB: Feedback pin for output voltage regulation
  4. EN: Enable pin for turning the IC on/off
  5. SS: Soft-start capacitor connection
  6. COMP: Compensation pin for stability control
  7. VCC: Supply voltage for internal circuitry
  8. PGND: Power ground
  9. SW: Switching node for power conversion
  10. LX: Inductor connection for power conversion

Functional Features

The NCP1937C1DR2G offers the following functional features:

  • Constant voltage (CV) and constant current (CC) operation modes
  • Adjustable output voltage through external resistors
  • Overcurrent protection with adjustable threshold
  • Thermal shutdown protection to prevent overheating
  • Soft-start function for controlled startup

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Overcurrent and thermal shutdown protection enhance reliability - Small package size (DFN-10) saves board space

Disadvantages: - Limited maximum output current (3A)

Working Principles

The NCP1937C1DR2G operates as a step-down (buck) converter. It converts a higher input voltage to a lower output voltage with high efficiency. The IC uses pulse width modulation (PWM) to control the duty cycle of the switching transistor, regulating the output voltage. Feedback from the FB pin is compared to a reference voltage, and the error signal is used to adjust the duty cycle. This feedback loop ensures stable and accurate output voltage regulation.

Detailed Application Field Plans

The NCP1937C1DR2G can be used in various applications, including but not limited to:

  1. Power supplies for consumer electronics
  2. Battery chargers
  3. LED lighting systems
  4. Industrial automation equipment
  5. Automotive electronics

Detailed Alternative Models

Some alternative models that offer similar functionality to the NCP1937C1DR2G include:

  1. LM2596S-ADJ
  2. TPS54331RTER
  3. LT8610ABEMSE#PBF
  4. MP2307DN-LF-Z
  5. MAX15062ATB+T

These models can be considered based on specific requirements and availability.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von NCP1937C1DR2G in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of NCP1937C1DR2G in technical solutions:

Q1: What is the NCP1937C1DR2G? A1: The NCP1937C1DR2G is a high-performance synchronous buck controller IC designed for various power supply applications.

Q2: What is the input voltage range of the NCP1937C1DR2G? A2: The NCP1937C1DR2G has an input voltage range of 4.5V to 18V.

Q3: What is the output voltage range of the NCP1937C1DR2G? A3: The NCP1937C1DR2G can support output voltages from 0.6V to 5.5V.

Q4: What is the maximum output current of the NCP1937C1DR2G? A4: The NCP1937C1DR2G can handle a maximum output current of up to 15A.

Q5: Does the NCP1937C1DR2G have any built-in protection features? A5: Yes, the NCP1937C1DR2G includes various protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.

Q6: Can the NCP1937C1DR2G be used in battery-powered applications? A6: Yes, the NCP1937C1DR2G is suitable for battery-powered applications due to its low quiescent current and high efficiency.

Q7: What control methods does the NCP1937C1DR2G support? A7: The NCP1937C1DR2G supports both voltage mode control and current mode control.

Q8: Can the NCP1937C1DR2G be synchronized to an external clock? A8: Yes, the NCP1937C1DR2G can be synchronized to an external clock for better noise performance or synchronization with other power supplies.

Q9: Is there any evaluation board available for the NCP1937C1DR2G? A9: Yes, ON Semiconductor provides an evaluation board for the NCP1937C1DR2G, which can help in the design and testing process.

Q10: What is the package type of the NCP1937C1DR2G? A10: The NCP1937C1DR2G is available in a compact 16-pin SOIC package.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.