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HAL1821UA-A
Product Overview
Category
The HAL1821UA-A belongs to the category of integrated circuits (ICs) and is specifically designed as a voltage regulator.
Use
It is used to regulate voltage in electronic circuits, ensuring a stable and consistent power supply.
Characteristics
- Voltage Regulation: The HAL1821UA-A provides precise voltage regulation, making it suitable for sensitive electronic components.
- Low Dropout Voltage: This feature allows the IC to operate with minimal voltage drop, maximizing efficiency.
- Thermal Shutdown Protection: The IC is equipped with thermal shutdown protection, safeguarding it from overheating.
Package
The HAL1821UA-A is available in a compact surface-mount package, enhancing its versatility and ease of integration into various electronic designs.
Essence
The essence of HAL1821UA-A lies in its ability to deliver reliable voltage regulation, contributing to the overall stability and performance of electronic devices.
Packaging/Quantity
The IC is typically packaged in reels or tubes, with quantities varying based on manufacturer specifications.
Specifications
- Input Voltage Range: 2.5V to 6.0V
- Output Voltage: Adjustable from 1.2V to 5.5V
- Maximum Output Current: 500mA
- Dropout Voltage: 300mV at 100mA
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
The HAL1821UA-A features a standard pin configuration with input, output, and ground pins, along with additional pins for adjustment and enable functions.
Functional Features
- Adjustable Output: The IC allows for adjustable output voltage, providing flexibility in various applications.
- Low Quiescent Current: It exhibits low quiescent current, minimizing power consumption during standby or idle modes.
- Reverse Polarity Protection: Built-in reverse polarity protection ensures the IC's safety in case of incorrect connections.
Advantages and Disadvantages
Advantages
- Precise voltage regulation
- Low dropout voltage
- Thermal shutdown protection
- Compact form factor
Disadvantages
- Limited maximum output current compared to higher-power regulators
- Sensitive to excessive input voltage fluctuations
Working Principles
The HAL1821UA-A operates by comparing the output voltage to a reference voltage and adjusting the pass element to maintain a stable output voltage, compensating for load variations and input voltage changes.
Detailed Application Field Plans
The HAL1821UA-A is well-suited for a wide range of applications, including: - Battery-powered devices - Portable electronics - IoT (Internet of Things) devices - Wearable technology - Automotive electronics
Detailed and Complete Alternative Models
- HAL1822UA-A: Similar functionality with enhanced output current capability
- HAL1823UA-A: Higher output voltage range for specific application requirements
- HAL1824UA-A: Ultra-low dropout voltage variant for critical power-sensitive applications
In conclusion, the HAL1821UA-A offers precise voltage regulation and compact design, making it an ideal choice for various electronic applications requiring stable power supplies.
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Liste 10 perguntas e respostas comuns relacionadas à aplicação de HAL1821UA-A em soluções técnicas
What is HAL1821UA-A?
- HAL1821UA-A is a high-performance operational amplifier designed for various technical applications.
What are the key features of HAL1821UA-A?
- The key features include low offset voltage, low input bias current, wide bandwidth, and low noise, making it suitable for precision signal conditioning.
In what technical solutions can HAL1821UA-A be used?
- HAL1821UA-A can be used in instrumentation amplifiers, data acquisition systems, sensor interfaces, and other precision analog applications.
What is the typical supply voltage range for HAL1821UA-A?
- The typical supply voltage range for HAL1821UA-A is ±5V to ±15V, making it compatible with a wide range of power supplies.
Does HAL1821UA-A have built-in protection features?
- Yes, HAL1821UA-A includes built-in electrostatic discharge (ESD) protection, making it robust and reliable in harsh environments.
What is the temperature range for HAL1821UA-A?
- HAL1821UA-A operates over a wide temperature range, typically from -40°C to 125°C, ensuring performance in extreme conditions.
Can HAL1821UA-A be used in single-supply applications?
- Yes, HAL1821UA-A can be used in single-supply applications with proper biasing and voltage level shifting.
What is the recommended PCB layout for using HAL1821UA-A?
- The recommended PCB layout includes proper grounding, decoupling capacitors, and minimizing trace lengths to ensure optimal performance.
Is HAL1821UA-A RoHS compliant?
- Yes, HAL1821UA-A is RoHS compliant, meeting environmental standards for lead-free manufacturing.
Where can I find detailed application notes for using HAL1821UA-A in technical solutions?
- Detailed application notes for HAL1821UA-A can be found on the manufacturer's website or in the product datasheet, providing comprehensive guidance for various applications.