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ISL9212AIRZ
Product Overview
Category: Integrated Circuit (IC)
Use: Power Management IC
Characteristics: - High-efficiency buck-boost regulator - Low quiescent current - Wide input voltage range - Adjustable output voltage - Overcurrent and overvoltage protection - Thermal shutdown protection
Package: QFN (Quad Flat No-leads)
Essence: The ISL9212AIRZ is a power management IC designed for high-efficiency buck-boost regulation. It offers a wide input voltage range and adjustable output voltage, making it suitable for various applications.
Packaging/Quantity: The ISL9212AIRZ is available in a QFN package. The quantity per package may vary depending on the supplier.
Specifications
- Input Voltage Range: 2.5V to 5.5V
- Output Voltage Range: 1.8V to 5.5V
- Quiescent Current: 20µA (typical)
- Switching Frequency: 1.2MHz
- Operating Temperature Range: -40°C to +85°C
Pin Configuration
The ISL9212AIRZ has a total of 24 pins. Below is the detailed pin configuration:
Pin Number | Pin Name | Function
-----------|----------|---------
1 | VIN | Input Voltage
2 | EN | Enable
3 | PG | Power Good
4 | VOUT | Output Voltage
5 | FB | Feedback
6 | GND | Ground
7-10 | SW1-SW4 | Switch Nodes
11 | LX | Inductor Connection
12 | BST | Boost Capacitor Connection
13 | SS | Soft-Start
14 | PGND | Power Ground
15 | VREF | Reference Voltage
16-19 | NC | No Connection
20 | ISET | Current Limit Set
21 | SS1 | Soft-Start 1
22 | SS2 | Soft-Start 2
23 | SS3 | Soft-Start 3
24 | SS4 | Soft-Start 4
Functional Features
- High-efficiency buck-boost regulation for wide input voltage range
- Adjustable output voltage to meet specific requirements
- Overcurrent and overvoltage protection for enhanced safety
- Thermal shutdown protection to prevent overheating
Advantages and Disadvantages
Advantages: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent and overvoltage protection - Thermal shutdown protection
Disadvantages: - Limited pin configuration options - May require additional external components for certain applications
Working Principles
The ISL9212AIRZ utilizes a buck-boost topology to regulate the output voltage. It switches between buck (step-down) and boost (step-up) modes based on the input and output voltage levels. The integrated control circuitry adjusts the duty cycle of the switching transistor to maintain the desired output voltage.
Detailed Application Field Plans
The ISL9212AIRZ is suitable for various applications, including but not limited to: - Battery-powered devices - Portable electronics - IoT (Internet of Things) devices - Wearable devices - Industrial equipment - Automotive systems
Detailed and Complete Alternative Models
- ISL9212BIRZ: Similar specifications and features, different package type (DFN)
- ISL9212CIRZ: Similar specifications and features, improved efficiency and thermal performance
- ISL9212DIRZ: Similar specifications and features, higher input voltage range
These alternative models offer similar functionality to the ISL9212AIRZ but may have slight differences in package type, efficiency, or input voltage range.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ISL9212AIRZ v technických řešeních
Sure! Here are 10 common questions and answers related to the application of ISL9212AIRZ in technical solutions:
Q: What is ISL9212AIRZ? A: ISL9212AIRZ is a highly integrated, programmable multi-cell Li-ion/Li-polymer battery charger IC designed for use in portable devices.
Q: What is the input voltage range supported by ISL9212AIRZ? A: ISL9212AIRZ supports an input voltage range from 3.9V to 24V, making it suitable for various power sources.
Q: Can ISL9212AIRZ charge multiple cells simultaneously? A: Yes, ISL9212AIRZ can charge up to two series-connected cells simultaneously, providing flexibility in battery configurations.
Q: Does ISL9212AIRZ support fast charging? A: Yes, ISL9212AIRZ supports various fast charging protocols such as Qualcomm Quick Charge, USB Power Delivery, and others.
Q: What is the maximum charging current supported by ISL9212AIRZ? A: The maximum charging current supported by ISL9212AIRZ is typically 4A, allowing for faster charging times.
Q: Can ISL9212AIRZ be used in low-power applications? A: Yes, ISL9212AIRZ features a low quiescent current mode, making it suitable for low-power applications where energy efficiency is crucial.
Q: Does ISL9212AIRZ provide overvoltage protection? A: Yes, ISL9212AIRZ incorporates overvoltage protection to safeguard the battery and connected devices from excessive voltage levels.
Q: Is ISL9212AIRZ compatible with different battery chemistries? A: Yes, ISL9212AIRZ is compatible with various battery chemistries such as Li-ion and Li-polymer, offering versatility in design.
Q: Can ISL9212AIRZ be controlled and monitored remotely? A: Yes, ISL9212AIRZ supports I2C communication, allowing for remote control and monitoring of charging parameters.
Q: What are the key advantages of using ISL9212AIRZ in technical solutions? A: The key advantages of using ISL9212AIRZ include its high integration, support for fast charging, compatibility with multiple battery chemistries, and flexibility in battery configurations.