STMicroelectronics
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STC4054GR
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STC4054GR

Product Overview

The STC4054GR belongs to the category of battery charging management ICs. It is primarily used for managing the charging of lithium-ion or lithium-polymer batteries in various electronic devices. The characteristics of the STC4054GR include its compact size, high efficiency, and integrated features for safe and reliable battery charging. The package of the STC4054GR is typically a small outline integrated circuit (SOIC) or a thin small outline package (TSOP), and it is available in reel packaging with a specific quantity per reel.

Specifications

  • Input Voltage Range: 4.35V to 6V
  • Charge Current: Up to 800mA
  • Programmable Charge Termination Current
  • Automatic Recharge
  • Battery Temperature Monitoring
  • Integrated Reverse Blocking Diode
  • Thermal Regulation and Protection

Detailed Pin Configuration

The STC4054GR typically has 8 pins, including input voltage, ground, charge status output, temperature sense, and battery connections. A detailed pin configuration diagram can be found in the product datasheet.

Functional Features

  • Constant-Current/Constant-Voltage Charging
  • Automatic Power Path Management
  • Over-Temperature Protection
  • Under-Voltage Lockout
  • Charge Status Indicator

Advantages and Disadvantages

Advantages

  • Compact Size
  • High Efficiency
  • Integrated Safety Features
  • Programmable Charge Termination
  • Automatic Recharge Functionality

Disadvantages

  • Limited Maximum Charge Current
  • Requires External Components for Full Functionality

Working Principles

The STC4054GR operates based on the principle of constant-current/constant-voltage charging, where it delivers a regulated current to the battery until a certain voltage limit is reached, after which it switches to constant-voltage mode. It also incorporates safety features such as thermal regulation and protection to ensure safe and reliable charging.

Detailed Application Field Plans

The STC4054GR is commonly used in portable electronic devices such as smartphones, tablets, portable media players, and handheld gaming devices. It is also suitable for use in portable medical devices, wireless headsets, and other battery-powered consumer electronics.

Detailed and Complete Alternative Models

  • STC4054GY: Similar functionality with different package options
  • MAX1555: Integrated lithium-ion battery charger with similar specifications
  • MCP73831: Single-cell lithium-ion/polymer charge management controller

In conclusion, the STC4054GR is a versatile battery charging management IC with a range of integrated features for safe and efficient charging of lithium-ion and lithium-polymer batteries. Its compact size and comprehensive functionality make it suitable for a wide range of portable electronic devices.

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Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng STC4054GR sa mga teknikal na solusyon

  1. Q: What is the input voltage range for STC4054GR? A: The input voltage range for STC4054GR is typically 4.3V to 6V.

  2. Q: What is the maximum charge current supported by STC4054GR? A: The maximum charge current supported by STC4054GR is 800mA.

  3. Q: Can STC4054GR be used for charging lithium-ion batteries? A: Yes, STC4054GR is designed for charging single-cell lithium-ion batteries.

  4. Q: Does STC4054GR have built-in thermal regulation? A: Yes, STC4054GR features built-in thermal regulation to prevent overheating during charging.

  5. Q: What is the typical charge termination voltage for STC4054GR? A: The typical charge termination voltage for STC4054GR is 4.2V.

  6. Q: Is STC4054GR suitable for portable electronic devices? A: Yes, STC4054GR is commonly used in portable electronic devices such as smartphones, tablets, and wearables.

  7. Q: Can STC4054GR operate in a wide temperature range? A: Yes, STC4054GR is designed to operate in a wide temperature range, typically from -40°C to 85°C.

  8. Q: Does STC4054GR support trickle charging? A: Yes, STC4054GR supports trickle charging to maintain the battery at full capacity without overcharging.

  9. Q: What is the typical standby current consumption of STC4054GR? A: The typical standby current consumption of STC4054GR is very low, typically around 15µA.

  10. Q: Can STC4054GR be used in solar-powered applications? A: Yes, STC4054GR can be used in solar-powered applications to efficiently charge lithium-ion batteries from solar panels.