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ISL8490IBZ-T
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ISL8490IBZ-T

Product Overview

Category

ISL8490IBZ-T belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

  • High efficiency
  • Low quiescent current
  • Wide input voltage range
  • Overcurrent protection
  • Thermal shutdown protection

Package

ISL8490IBZ-T is available in a small outline package (SOIC) with 8 pins.

Essence

The essence of ISL8490IBZ-T lies in its ability to efficiently regulate and control power in various electronic devices.

Packaging/Quantity

This product is typically packaged in reels, with a quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: 2.7V to 5.5V
  • Output Voltage Range: 0.6V to VIN
  • Quiescent Current: 17µA (typical)
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Output Current: 1.5A

Pin Configuration

The detailed pin configuration for ISL8490IBZ-T is as follows:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VIN | Input voltage | | 2 | GND | Ground | | 3 | EN | Enable pin | | 4 | FB | Feedback pin | | 5 | SW | Switch node | | 6 | PG | Power good output | | 7 | VOUT | Output voltage | | 8 | LX | Inductor connection |

Functional Features

  • Integrated synchronous buck regulator
  • Adjustable output voltage
  • Soft-start function
  • Short-circuit protection
  • Under-voltage lockout

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power consumption
  • Wide input voltage range allows for versatile applications
  • Overcurrent and thermal shutdown protection enhance safety
  • Small package size enables space-saving designs

Disadvantages

  • Limited maximum output current may not be suitable for high-power applications
  • Requires external components for proper operation

Working Principles

ISL8490IBZ-T operates as a synchronous buck regulator, converting the input voltage to a lower, regulated output voltage. It utilizes pulse-width modulation (PWM) techniques to control the duty cycle of the switching transistor, thereby regulating the output voltage. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle accordingly.

Detailed Application Field Plans

ISL8490IBZ-T finds application in various fields, including but not limited to: - Portable electronic devices - Battery-powered systems - Industrial automation - Automotive electronics - Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to ISL8490IBZ-T are: - LM2596S-ADJ - TPS54331 - LT1763

These models can be considered based on specific requirements and design constraints.

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10 سوال و پاسخ رایج مربوط به کاربرد ISL8490IBZ-T در راه حل های فنی را فهرست کنید

Sure! Here are 10 common questions and answers related to the application of ISL8490IBZ-T in technical solutions:

  1. Q: What is ISL8490IBZ-T? A: ISL8490IBZ-T is a high-speed, low-power, and robust RS-485/RS-422 transceiver IC.

  2. Q: What is the operating voltage range of ISL8490IBZ-T? A: The operating voltage range of ISL8490IBZ-T is from 3V to 5.5V.

  3. Q: Can ISL8490IBZ-T be used for half-duplex communication? A: Yes, ISL8490IBZ-T can be used for both half-duplex and full-duplex communication.

  4. Q: What is the maximum data rate supported by ISL8490IBZ-T? A: ISL8490IBZ-T supports a maximum data rate of 16Mbps.

  5. Q: Does ISL8490IBZ-T have built-in ESD protection? A: Yes, ISL8490IBZ-T has built-in ±15kV ESD protection on the RS-485/RS-422 bus pins.

  6. Q: Can ISL8490IBZ-T operate in harsh industrial environments? A: Yes, ISL8490IBZ-T is designed to operate in harsh industrial environments with extended temperature ranges and high noise immunity.

  7. Q: Is ISL8490IBZ-T compatible with 3.3V microcontrollers? A: Yes, ISL8490IBZ-T is fully compatible with 3.3V microcontrollers and other logic devices.

  8. Q: Can ISL8490IBZ-T be used in multi-drop bus configurations? A: Yes, ISL8490IBZ-T can be used in multi-drop bus configurations with up to 32 transceivers on the bus.

  9. Q: Does ISL8490IBZ-T support fail-safe biasing? A: Yes, ISL8490IBZ-T supports fail-safe biasing, ensuring a known output state when the inputs are open or shorted.

  10. Q: What is the package type of ISL8490IBZ-T? A: ISL8490IBZ-T is available in an industry-standard 8-lead SOIC package.

Please note that these answers are general and may vary depending on the specific application and requirements.