Active-Semi International Inc.
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ACT8945AQJ405-T
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ACT8945AQJ405-T

Product Overview

Category

ACT8945AQJ405-T belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for power management purposes.

Characteristics

  • High efficiency
  • Low power consumption
  • Compact size
  • Wide input voltage range
  • Multiple protection features

Package

ACT8945AQJ405-T is available in a small outline package (SOP) or a quad flat no-leads (QFN) package.

Essence

The essence of ACT8945AQJ405-T lies in its ability to efficiently manage power distribution and consumption in electronic devices.

Packaging/Quantity

ACT8945AQJ405-T is typically packaged in reels or trays, with a quantity of 2500 units per reel/tray.

Specifications

  • Input Voltage Range: 2.7V - 5.5V
  • Output Voltage Range: 0.6V - 3.3V
  • Maximum Output Current: 4A
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

ACT8945AQJ405-T has the following pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. EN: Enable pin
  4. FB: Feedback pin
  5. VOUT: Output voltage
  6. PGND: Power ground

Functional Features

  • Integrated synchronous buck converter
  • Adjustable output voltage
  • Overcurrent protection
  • Thermal shutdown protection
  • Soft-start function
  • Power good indicator

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power consumption
  • Compact size allows for space-saving designs
  • Wide input voltage range accommodates various power sources
  • Multiple protection features ensure device safety

Disadvantages

  • Limited maximum output current may not be suitable for high-power applications
  • Temperature range may restrict usage in extreme environments

Working Principles

ACT8945AQJ405-T operates as a synchronous buck converter, converting the input voltage to a lower, adjustable output voltage. It utilizes pulse-width modulation (PWM) techniques to regulate the output voltage and maintain efficiency. The integrated protection features ensure safe operation by monitoring current, temperature, and other parameters.

Detailed Application Field Plans

ACT8945AQJ405-T finds applications in various electronic devices, including but not limited to: - Mobile phones - Tablets - Portable media players - Wearable devices - IoT devices

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to ACT8945AQJ405-T are: - ACT8945AQJ404-T - ACT8945AQJ406-T - ACT8945AQJ407-T - ACT8945AQJ408-T

These models offer similar functionality and characteristics, providing flexibility in design choices.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ACT8945AQJ405-T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of ACT8945AQJ405-T in technical solutions:

  1. Q: What is ACT8945AQJ405-T? A: ACT8945AQJ405-T is a specific model of power management integrated circuit (PMIC) designed for use in various technical solutions.

  2. Q: What are the key features of ACT8945AQJ405-T? A: Some key features of ACT8945AQJ405-T include multiple voltage regulators, power sequencing, fault protection, and low power consumption.

  3. Q: What technical solutions can ACT8945AQJ405-T be used in? A: ACT8945AQJ405-T can be used in a wide range of applications such as smartphones, tablets, portable devices, IoT devices, and other battery-powered systems.

  4. Q: How does ACT8945AQJ405-T help in power management? A: ACT8945AQJ405-T provides efficient power conversion, voltage regulation, and power sequencing capabilities, ensuring stable and reliable power supply to different components of a system.

  5. Q: Can ACT8945AQJ405-T handle multiple voltage levels? A: Yes, ACT8945AQJ405-T has multiple voltage regulators that can generate and regulate different voltage levels required by various components in a system.

  6. Q: Does ACT8945AQJ405-T have any built-in protection mechanisms? A: Yes, ACT8945AQJ405-T incorporates various protection features like overvoltage protection, undervoltage lockout, thermal shutdown, and short-circuit protection.

  7. Q: Is ACT8945AQJ405-T compatible with different battery types? A: Yes, ACT8945AQJ405-T supports a wide range of battery chemistries, including lithium-ion (Li-ion), lithium-polymer (LiPo), and nickel-metal hydride (NiMH).

  8. Q: Can ACT8945AQJ405-T be controlled and monitored remotely? A: Yes, ACT8945AQJ405-T can be controlled and monitored through an I2C interface, allowing for remote configuration and monitoring of power-related parameters.

  9. Q: What is the typical efficiency of ACT8945AQJ405-T? A: ACT8945AQJ405-T offers high efficiency levels, typically above 90%, ensuring minimal power loss during voltage conversion.

  10. Q: Are there any application notes or reference designs available for ACT8945AQJ405-T? A: Yes, the manufacturer provides application notes and reference designs that can help in implementing ACT8945AQJ405-T in different technical solutions.

Please note that the specific details and answers may vary depending on the manufacturer's documentation and the requirements of your particular technical solution.