NJR Corporation/NJRC
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NJM79L15L2A
צפה בפרטים DataSheets

NJM79L15L2A

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low dropout, fixed output voltage of -15V, 3-terminal regulator
  • Package: TO-92 (Through-Hole)
  • Essence: Linear voltage regulator
  • Packaging/Quantity: Bulk packaging, typically sold in reels or tubes

Specifications

  • Input Voltage Range: -17V to -35V
  • Output Voltage: -15V (fixed)
  • Output Current: Up to 100mA
  • Dropout Voltage: 1.5V (typical)
  • Line Regulation: 0.05% (typical)
  • Load Regulation: 0.1% (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The NJM79L15L2A has three pins:

  1. Input (VIN): Connects to the input voltage source (-17V to -35V).
  2. Ground (GND): Common ground reference.
  3. Output (VOUT): Provides a regulated -15V output.

Functional Features

  • Low dropout voltage: The NJM79L15L2A can regulate the output voltage even when the input voltage is only slightly higher than the desired output voltage.
  • Short-circuit protection: The IC includes internal circuitry to protect against short circuits on the output.
  • Thermal shutdown: In case of excessive temperature, the IC shuts down to prevent damage.
  • Reverse polarity protection: The device is protected against reverse polarity connection.

Advantages and Disadvantages

Advantages: - Compact and easy to use. - Stable and accurate output voltage. - Built-in protection features. - Wide operating temperature range.

Disadvantages: - Limited output current capability. - Fixed output voltage may not be suitable for all applications. - Requires external capacitors for stability.

Working Principles

The NJM79L15L2A is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the reference voltage (-15V) with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The NJM79L15L2A is commonly used in various electronic devices and applications, including: - Power supplies for audio amplifiers - Industrial control systems - Automotive electronics - Battery-powered equipment - Instrumentation and measurement devices

Detailed and Complete Alternative Models

Some alternative models to the NJM79L15L2A include: - LM79L15 (National Semiconductor) - MC79L15 (Motorola) - KA79L15 (Fairchild Semiconductor) - UA79L15 (Texas Instruments)

These alternatives offer similar functionality and characteristics, providing options for different manufacturers and availability.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של NJM79L15L2A בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of NJM79L15L2A in technical solutions:

  1. Q: What is NJM79L15L2A? A: NJM79L15L2A is a voltage regulator IC that provides a fixed output voltage of -15V.

  2. Q: What is the input voltage range for NJM79L15L2A? A: The input voltage range for NJM79L15L2A is typically between -35V and -4V.

  3. Q: What is the maximum output current of NJM79L15L2A? A: The maximum output current of NJM79L15L2A is 100mA.

  4. Q: Can NJM79L15L2A be used in both AC and DC applications? A: Yes, NJM79L15L2A can be used in both AC and DC applications.

  5. Q: Is NJM79L15L2A suitable for low-power applications? A: Yes, NJM79L15L2A is commonly used in low-power applications due to its low quiescent current.

  6. Q: Does NJM79L15L2A require any external components for operation? A: Yes, NJM79L15L2A requires an input capacitor and an output capacitor for stable operation.

  7. Q: Can NJM79L15L2A handle short-circuit conditions? A: No, NJM79L15L2A does not have built-in short-circuit protection. External measures should be taken to prevent short circuits.

  8. Q: What is the operating temperature range of NJM79L15L2A? A: The operating temperature range of NJM79L15L2A is typically between -40°C and 85°C.

  9. Q: Can NJM79L15L2A be used in automotive applications? A: Yes, NJM79L15L2A is suitable for automotive applications as it meets the necessary standards.

  10. Q: Are there any alternatives to NJM79L15L2A for -15V voltage regulation? A: Yes, there are other voltage regulator ICs available in the market that can provide a fixed output voltage of -15V, such as LM7915 or LT1054.

Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.