Texas Instruments
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
LM385BD-1-2
Zobrazit detail DataSheets

LM385BD-1-2

Product Overview

LM385BD-1-2 is a precision voltage reference belonging to the LM385 series of integrated circuits. This device falls under the category of voltage references and is commonly used in various electronic applications requiring stable and accurate voltage regulation. The LM385BD-1-2 is known for its high precision, low power consumption, and small package size, making it suitable for a wide range of portable and battery-powered devices. It is available in a standard TO-252 package and is typically sold in reels of 2500 units.

Specifications

  • Output Voltage: 1.235V ± 2%
  • Temperature Coefficient: 100ppm/°C (typical)
  • Operating Current: 15μA (typical)
  • Package Type: TO-252
  • Package Quantity: 2500 units/reel

Pin Configuration

The LM385BD-1-2 features a standard 3-pin configuration: 1. VOUT - Output Voltage 2. GND - Ground 3. VIN - Input Voltage

Functional Features

The LM385BD-1-2 provides a stable and precise reference voltage that remains relatively unaffected by temperature variations and power supply fluctuations. Its low operating current makes it suitable for battery-powered applications, while its small package size allows for space-efficient designs.

Advantages and Disadvantages

Advantages

  • High precision voltage reference
  • Low power consumption
  • Small package size
  • Wide operating temperature range

Disadvantages

  • Limited output voltage options
  • Sensitive to load variations

Working Principles

The LM385BD-1-2 operates based on the bandgap reference principle, where the voltage across a semiconductor junction is used as a stable reference. This reference voltage is then compared to an internal amplifier to generate a precise output voltage.

Application Field Plans

The LM385BD-1-2 finds extensive use in various applications, including: - Battery-powered devices - Portable instrumentation - Precision voltage regulators - Sensor signal conditioning

Alternative Models

For those seeking alternatives to the LM385BD-1-2, the following models can be considered: - LM4040AIM3-2.0/NOPB - LT1461ACS8-2.5#PBF - MAX6003EUR+T

In conclusion, the LM385BD-1-2 is a highly reliable and precise voltage reference suitable for a wide range of electronic applications. Its compact design, low power consumption, and stable performance make it a popular choice among designers looking for accurate voltage regulation solutions.

Word Count: 330

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LM385BD-1-2 v technických řešeních

  1. What is the LM385BD-1-2?

    • The LM385BD-1-2 is a precision voltage reference diode that provides a stable 1.235V output voltage with a tolerance of ±0.5%.

  2. What are the typical applications of LM385BD-1-2?

    • It is commonly used as a voltage reference in various electronic circuits, including analog and digital systems, power supplies, and sensor interfaces.

  3. How do I connect the LM385BD-1-2 in my circuit?

    • The LM385BD-1-2 can be connected as a shunt regulator or in series with a resistor to create a stable voltage reference.

  4. What is the temperature stability of LM385BD-1-2?

    • The LM385BD-1-2 has excellent temperature stability, typically around 20ppm/°C.

  5. Can I use LM385BD-1-2 in battery-powered devices?

    • Yes, the LM385BD-1-2 is suitable for battery-powered devices due to its low power consumption and stable voltage output.

  6. What is the maximum current that LM385BD-1-2 can handle?

    • The LM385BD-1-2 can handle a maximum current of 15mA.

  7. How should I filter the output of LM385BD-1-2 to reduce noise?

    • A simple RC filter can be used to reduce noise on the output of LM385BD-1-2.

  8. Is LM385BD-1-2 suitable for high-precision measurement applications?

    • Yes, the LM385BD-1-2 is suitable for high-precision measurement applications due to its stable and accurate voltage reference.

  9. What is the operating voltage range of LM385BD-1-2?

    • The LM385BD-1-2 operates within a voltage range of 1.5V to 40V.

  10. Are there any specific layout considerations for using LM385BD-1-2?

    • It is recommended to keep the LM385BD-1-2 close to the load and decouple it with a capacitor to minimize voltage fluctuations.