AN78L12

Product Overview

Category:

AN78L12 belongs to the category of voltage regulators.

Use:

It is used to regulate voltage in electronic circuits.

Characteristics:

Input Voltage: Up to 35V
Output Voltage: 12V
Maximum Output Current: 100mA
Low dropout voltage
Thermal shutdown protection

Package:

AN78L12 is available in a TO-92 package.

Essence:

The essence of AN78L12 lies in its ability to provide stable and regulated 12V output voltage.

Packaging/Quantity:

AN78L12 is typically sold in reels containing a specific quantity, such as 2000 pieces per reel.

Specifications

Input Voltage Range: Up to 35V
Output Voltage: 12V
Output Current: 100mA
Dropout Voltage: 2V (typical)
Operating Temperature Range: -40°C to 125°C
Package Type: TO-92

Detailed Pin Configuration

Input (Vin)
Ground (GND)
Output (Vout)

Functional Features

Regulates input voltage to a stable 12V output.
Provides thermal shutdown protection.
Low dropout voltage ensures efficient operation.

Advantages

Compact TO-92 package.
Wide input voltage range.
Thermal shutdown protection for added reliability.

Disadvantages

Limited maximum output current of 100mA.
Dropout voltage of 2V may not be suitable for all applications.

Working Principles

AN78L12 operates by comparing the reference voltage with the divided voltage of the output. It adjusts the pass transistor to maintain a constant output voltage despite variations in the input voltage and load conditions.

Detailed Application Field Plans

AN78L12 finds application in various electronic devices, including: - Battery-powered devices - Automotive electronics - Consumer electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to AN78L12 include: - LM7812 - UA7812 - L7912CV

In conclusion, AN78L12 is a voltage regulator that offers stable and reliable 12V output voltage, making it suitable for a wide range of electronic applications.

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技術ソリューションにおける AN78L12 の適用に関連する 10 件の一般的な質問と回答をリストします。

What is AN78L12?
- AN78L12 is a fixed voltage regulator that provides a constant 12V output voltage.
What is the input voltage range for AN78L12?
- The input voltage range for AN78L12 is typically between 14V to 30V.
What is the maximum output current of AN78L12?
- The maximum output current of AN78L12 is around 100mA.
Can AN78L12 handle higher input voltages?
- AN78L12 is designed to handle input voltages up to 35V, but it's recommended to stay within the specified range for optimal performance.
Is AN78L12 suitable for automotive applications?
- Yes, AN78L12 can be used in automotive applications where a stable 12V output is required.
Does AN78L12 require external components for operation?
- AN78L12 requires input and output capacitors for stable operation. A 0.33μF capacitor on the input and a 0.1μF capacitor on the output are commonly used.
What are the typical applications of AN78L12?
- AN78L12 is commonly used in electronic devices, automotive systems, and industrial equipment where a regulated 12V power supply is needed.
Is AN78L12 suitable for battery-powered applications?
- Yes, AN78L12 can be used in battery-powered applications to regulate the voltage from the battery to a stable 12V output.
What are the thermal considerations for AN78L12?
- AN78L12 has built-in thermal shutdown protection, but it's important to consider heat dissipation and use appropriate heat sinking if the regulator is expected to dissipate significant power.
Can AN78L12 be used in parallel to increase the output current?
- It's not recommended to use AN78L12 in parallel to increase the output current as it may lead to stability and regulation issues. If higher current is required, a different regulator or a current booster circuit should be considered.