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ISL88731CHRTZ-T
Product Overview
Category: Integrated Circuit (IC)
Use: Voltage Regulator
Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection
Package: 24-Lead Thin Shrink Small Outline Package (TSSOP)
Essence: The ISL88731CHRTZ-T is a voltage regulator IC designed for various applications that require stable and regulated power supply.
Packaging/Quantity: The ISL88731CHRTZ-T is typically sold in reels, with 2500 units per reel.
Specifications
- Input Voltage Range: 4.5V to 28V
- Output Voltage Range: 0.8V to 5.5V
- Dropout Voltage: 200mV at 1A
- Output Current: Up to 3A
- Quiescent Current: 120µA
- Operating Temperature Range: -40°C to +85°C
Pin Configuration
The ISL88731CHRTZ-T has a 24-pin TSSOP package with the following pin configuration:
```
Pin Number | Pin Name | Function
1 | VIN | Input Voltage
2 | GND | Ground
3 | EN | Enable
4 | FB | Feedback
5 | VOUT | Output Voltage
6 | PG | Power Good
... | ... | ...
24 | VCC | Supply Voltage
```
Functional Features
- High Efficiency: The ISL88731CHRTZ-T offers high efficiency, minimizing power loss and maximizing energy conversion.
- Low Dropout Voltage: With a low dropout voltage of 200mV at 1A, the IC ensures stable output even when the input voltage is close to the desired output voltage.
- Wide Input Voltage Range: The IC can handle input voltages ranging from 4.5V to 28V, making it suitable for various applications.
- Adjustable Output Voltage: The output voltage can be adjusted within the range of 0.8V to 5.5V, providing flexibility in different scenarios.
- Overcurrent Protection: The ISL88731CHRTZ-T incorporates overcurrent protection, safeguarding the circuit from excessive current flow.
- Thermal Shutdown Protection: In case of excessive heat, the IC automatically shuts down to prevent damage.
Advantages and Disadvantages
Advantages: - High efficiency leads to reduced power consumption. - Wide input voltage range allows for versatile use. - Adjustable output voltage provides flexibility. - Overcurrent and thermal shutdown protection enhance reliability.
Disadvantages: - Limited output current capacity (up to 3A). - Requires external components for proper operation.
Working Principles
The ISL88731CHRTZ-T operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB) with a reference voltage. The error amplifier adjusts the pass transistor to maintain the desired output voltage. The enable pin (EN) controls the regulator's on/off state.
Detailed Application Field Plans
The ISL88731CHRTZ-T finds applications in various fields, including but not limited to: 1. Consumer electronics 2. Industrial equipment 3. Automotive systems 4. Telecommunications 5. Power supplies
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to the ISL88731CHRTZ-T are: 1. LM317: Adjustable voltage regulator with a wide input voltage range. 2. LT1084: Low dropout voltage regulator capable of handling high currents. 3. TPS7A47: High-efficiency voltage regulator with integrated overcurrent protection.
These alternative models can be considered based on specific requirements and design constraints.
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Énumérez 10 questions et réponses courantes liées à l'application de ISL88731CHRTZ-T dans les solutions techniques
Sure! Here are 10 common questions and answers related to the application of ISL88731CHRTZ-T in technical solutions:
Q: What is ISL88731CHRTZ-T? A: ISL88731CHRTZ-T is a highly integrated battery charger controller IC designed for single-cell Li-ion or Li-polymer batteries.
Q: What is the input voltage range supported by ISL88731CHRTZ-T? A: The input voltage range supported by ISL88731CHRTZ-T is typically between 4.5V and 28V.
Q: Can ISL88731CHRTZ-T charge multiple batteries simultaneously? A: No, ISL88731CHRTZ-T is designed to charge a single-cell battery at a time.
Q: What charging current can ISL88731CHRTZ-T provide? A: ISL88731CHRTZ-T can provide a charging current up to 3A, depending on the external components used.
Q: Does ISL88731CHRTZ-T support fast charging? A: Yes, ISL88731CHRTZ-T supports various charging profiles, including fast charging, based on the configuration and external components.
Q: Can ISL88731CHRTZ-T be used in portable devices? A: Yes, ISL88731CHRTZ-T is commonly used in portable devices like smartphones, tablets, and other battery-powered devices.
Q: Does ISL88731CHRTZ-T have built-in safety features? A: Yes, ISL88731CHRTZ-T includes several safety features such as overvoltage protection, overcurrent protection, and thermal shutdown.
Q: What is the typical efficiency of ISL88731CHRTZ-T? A: The typical efficiency of ISL88731CHRTZ-T is around 90-95%, depending on the input voltage and charging conditions.
Q: Can ISL88731CHRTZ-T be used in automotive applications? A: Yes, ISL88731CHRTZ-T can be used in automotive applications that require single-cell battery charging.
Q: Are evaluation boards or reference designs available for ISL88731CHRTZ-T? A: Yes, Intersil (now Renesas Electronics) provides evaluation boards and reference designs to help with the implementation of ISL88731CHRTZ-T in various applications.
Please note that these answers are general and may vary based on specific application requirements and datasheet specifications.