Rohm Semiconductor
La imagen puede ser una representación.
Consulte las especificaciones para obtener detalles del producto.
BA78M18FP-E2
Ver Detalle Hojas de datos

BA78M18FP-E2

Product Overview

Category

BA78M18FP-E2 belongs to the category of voltage regulators.

Use

It is used to regulate and stabilize the output voltage in electronic circuits.

Characteristics

  • Input Voltage Range: 20V to 35V
  • Output Voltage: 18V
  • Maximum Output Current: 0.5A
  • Dropout Voltage: 2V
  • Operating Temperature Range: -40°C to +125°C
  • Package Type: TO-252-3 (DPAK)
  • Essence: Linear voltage regulator

Packaging/Quantity

The BA78M18FP-E2 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Input Voltage Range: 20V to 35V
  • Output Voltage: 18V
  • Output Current: 0.5A
  • Dropout Voltage: 2V
  • Line Regulation: ±1%
  • Load Regulation: ±2%
  • Quiescent Current: 5mA
  • Ripple Rejection Ratio: 60dB
  • Thermal Shutdown Protection: Yes
  • Short Circuit Protection: Yes

Pin Configuration

The BA78M18FP-E2 has three pins:

  1. Vin (Input Voltage)
  2. GND (Ground)
  3. Vout (Output Voltage)

Functional Features

  • Regulates and stabilizes the output voltage within a specified range.
  • Provides protection against thermal shutdown and short circuits.
  • Offers good ripple rejection ratio for improved performance.
  • Low quiescent current consumption.

Advantages

  • Simple and easy to use.
  • Wide input voltage range.
  • Compact package size.
  • Good thermal management.
  • Reliable and durable.

Disadvantages

  • Limited maximum output current.
  • Dropout voltage may affect efficiency in low input voltage scenarios.
  • Not suitable for high-power applications.

Working Principles

The BA78M18FP-E2 is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The BA78M18FP-E2 is commonly used in various electronic devices and circuits, including:

  1. Power supplies for audio amplifiers.
  2. Battery charging circuits.
  3. Industrial control systems.
  4. Automotive electronics.
  5. Telecommunications equipment.

Detailed and Complete Alternative Models

  1. LM7818: Similar specifications and pin configuration.
  2. MC78M18: Equivalent performance and package type.
  3. UA7818: Comparable characteristics and functionality.

These alternative models can be considered as substitutes for the BA78M18FP-E2, depending on specific requirements and availability.

In conclusion, the BA78M18FP-E2 is a voltage regulator that provides stable and regulated output voltage for various electronic applications. Its compact size, wide input voltage range, and protection features make it a reliable choice for many circuit designs. However, its limited maximum output current and dropout voltage should be taken into consideration when selecting this component for high-power applications.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de BA78M18FP-E2 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of BA78M18FP-E2 in technical solutions:

  1. Q: What is BA78M18FP-E2? A: BA78M18FP-E2 is a fixed voltage regulator IC that provides a regulated output voltage of +18V.

  2. Q: What is the input voltage range for BA78M18FP-E2? A: The input voltage range for BA78M18FP-E2 is typically between +20V and +35V.

  3. Q: What is the maximum output current of BA78M18FP-E2? A: The maximum output current of BA78M18FP-E2 is 500mA.

  4. Q: Can BA78M18FP-E2 handle higher input voltages than +35V? A: No, it is not recommended to exceed the maximum input voltage range of +35V for BA78M18FP-E2.

  5. Q: Is BA78M18FP-E2 suitable for both AC and DC input voltages? A: Yes, BA78M18FP-E2 can accept both AC and DC input voltages within its specified range.

  6. Q: Does BA78M18FP-E2 require any external components for operation? A: Yes, BA78M18FP-E2 requires input and output capacitors for stability and filtering purposes.

  7. Q: Can BA78M18FP-E2 be used in automotive applications? A: Yes, BA78M18FP-E2 is designed to operate in automotive environments and can withstand harsh conditions.

  8. Q: What is the thermal resistance of BA78M18FP-E2? A: The thermal resistance of BA78M18FP-E2 is typically 50°C/W, which determines its ability to dissipate heat.

  9. Q: Can BA78M18FP-E2 be used in parallel for higher output current? A: No, BA78M18FP-E2 is not designed for parallel operation. Using multiple regulators in parallel may cause instability.

  10. Q: Is BA78M18FP-E2 available in different package options? A: Yes, BA78M18FP-E2 is available in a TO-220FP package, which is a widely used package type for voltage regulators.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's recommendations for BA78M18FP-E2.