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SMPZ3940B-E3/85A
Product Overview
- Belongs to: Electronic Components
- Category: Voltage Regulator
- Use: Regulating voltage in electronic circuits
- Characteristics: High precision, low dropout voltage, thermal shutdown protection
- Package: TO-252-3 (DPAK)
- Essence: Efficient voltage regulation
- Packaging/Quantity: Tape & Reel, 2500 units per reel
Specifications
- Input Voltage Range: 4.5V to 40V
- Output Voltage Range: 1.2V to 37V
- Output Current: 1.5A
- Dropout Voltage: 1.5V at 1A
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
- Input
- Ground
- Output
Functional Features
- High Precision: Provides accurate and stable output voltage
- Low Dropout Voltage: Suitable for low input voltage applications
- Thermal Shutdown Protection: Safeguards the device from overheating
Advantages
- Wide input voltage range
- Compact package size
- Thermal protection enhances reliability
Disadvantages
- Limited output current compared to some alternatives
- Higher dropout voltage under heavy loads
Working Principles
The SMPZ3940B-E3/85A operates by comparing the output voltage to a reference voltage and adjusting the pass element to maintain a constant output voltage.
Detailed Application Field Plans
This voltage regulator is suitable for various applications including:
- Battery-powered devices
- Automotive electronics
- Industrial control systems
Detailed and Complete Alternative Models
LM2940-N
- Category: Voltage Regulator
- Characteristics: Low dropout, adjustable output
- Package: TO-220
- Output Current: 1A
- Operating Temperature Range: -40°C to 125°C
L78L33ACZ
- Category: Positive Voltage Regulator
- Characteristics: Low cost, fixed output voltage
- Package: TO-92
- Output Current: 100mA
- Operating Temperature Range: 0°C to 125°C
In conclusion, the SMPZ3940B-E3/85A voltage regulator offers high precision and thermal protection, making it suitable for a wide range of electronic applications. While it has limitations in terms of output current and dropout voltage, there are alternative models available to suit specific requirements.
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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von SMPZ3940B-E3/85A in technischen Lösungen auf
What is SMPZ3940B-E3/85A?
- SMPZ3940B-E3/85A is a 40V Zener diode designed for voltage regulation and protection in various electronic circuits.
What are the typical applications of SMPZ3940B-E3/85A?
- SMPZ3940B-E3/85A is commonly used in voltage regulator modules, power supplies, and automotive electronics for overvoltage protection.
What is the maximum voltage rating of SMPZ3940B-E3/85A?
- The maximum voltage rating of SMPZ3940B-E3/85A is 40V, making it suitable for regulating and protecting circuits within this voltage range.
What is the power dissipation capability of SMPZ3940B-E3/85A?
- SMPZ3940B-E3/85A has a power dissipation capability of 1.5W, allowing it to handle moderate power levels in circuit protection applications.
Can SMPZ3940B-E3/85A be used for reverse polarity protection?
- Yes, SMPZ3940B-E3/85A can be utilized for reverse polarity protection by connecting it in series with the power supply input.
What are the temperature specifications for SMPZ3940B-E3/85A?
- SMPZ3940B-E3/85A has an operating temperature range of -65°C to +175°C, making it suitable for use in a wide range of environmental conditions.
Is SMPZ3940B-E3/85A RoHS compliant?
- Yes, SMPZ3940B-E3/85A is compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring its environmental friendliness.
What is the package type of SMPZ3940B-E3/85A?
- SMPZ3940B-E3/85A is available in a surface mount DO-214AC (SMA) package, which is suitable for automated assembly processes.
Can SMPZ3940B-E3/85A be used in battery charging circuits?
- Yes, SMPZ3940B-E3/85A can be employed in battery charging circuits to provide overvoltage protection and voltage regulation for the charging process.
Are there any recommended application circuits for SMPZ3940B-E3/85A?
- Yes, the datasheet for SMPZ3940B-E3/85A provides recommended application circuits for various voltage regulation and protection scenarios, offering guidance for its implementation in technical solutions.