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LTC4050EMS-4.2#TRPBF
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LTC4050EMS-4.2#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Battery Charger

Characteristics: - Single-cell Li-Ion/Polymer battery charger - 4.2V output voltage - Micro SMD package - High efficiency - Low quiescent current - Thermal regulation for maximum charge rate without risk of overheating - Programmable charge current up to 1A - Automatic recharge - Charge termination by voltage and current - Reverse leakage protection - Under-voltage lockout - Status indication

Package: Micro SMD

Essence: The LTC4050EMS-4.2#TRPBF is a single-cell Li-Ion/Polymer battery charger IC designed for portable electronic devices.

Packaging/Quantity: The LTC4050EMS-4.2#TRPBF is available in tape and reel packaging, with 2500 units per reel.

Specifications

  • Input Voltage Range: 4.75V - 6V
  • Output Voltage: 4.2V ± 1%
  • Charge Current Range: 100mA - 1A
  • Quiescent Current: 35µA
  • Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC4050EMS-4.2#TRPBF has the following pin configuration:

```

| | | 1 6 | | | | 2 5 | | | | 3 4 | |_______________| ```

Pin Descriptions: 1. VBAT - Battery Input 2. PROG - Charge Current Programming Pin 3. STAT - Status Indicator Output 4. GND - Ground 5. VCC - Supply Voltage Input 6. TS - Thermal Regulation Pin

Functional Features

  1. Single-cell Li-Ion/Polymer Battery Charging: The LTC4050EMS-4.2#TRPBF is specifically designed for charging single-cell Li-Ion/Polymer batteries commonly used in portable electronic devices.

  2. High Efficiency and Low Quiescent Current: The IC ensures high charging efficiency while consuming minimal power during standby or idle conditions.

  3. Thermal Regulation: The device incorporates thermal regulation to maximize the charge rate without risking overheating, ensuring safe and efficient charging.

  4. Programmable Charge Current: The charge current can be programmed between 100mA and 1A, allowing flexibility based on battery capacity and charging requirements.

  5. Automatic Recharge and Charge Termination: The LTC4050EMS-4.2#TRPBF automatically initiates recharge when the battery voltage drops below a certain threshold. It also terminates the charging process when the battery reaches the desired voltage and current levels.

  6. Reverse Leakage Protection and Under-Voltage Lockout: The IC provides protection against reverse leakage current and includes an under-voltage lockout feature to prevent charging when the input voltage is too low.

  7. Status Indication: The STAT pin provides an output signal indicating the charging status, enabling easy integration with external monitoring systems.

Advantages and Disadvantages

Advantages: - High charging efficiency - Low quiescent current consumption - Programmable charge current for flexibility - Automatic recharge and charge termination for convenience and safety - Thermal regulation for optimal charging rate - Reverse leakage protection and under-voltage lockout for added safety - Status indication for easy monitoring

Disadvantages: - Limited to single-cell Li-Ion/Polymer battery charging applications - Requires additional external components for complete charging system implementation

Working Principles

The LTC4050EMS-4.2#TRPBF operates by regulating the charging current and voltage to ensure safe and efficient charging of single-cell Li-Ion/Polymer batteries. It monitors the battery voltage and adjusts the charge current accordingly, terminating the charging process when the desired voltage and current levels are reached. The IC also incorporates thermal regulation to prevent overheating during the charging process.

Detailed Application Field Plans

The LTC4050EMS-4.2#TRPBF is widely used in various portable electronic devices that require single-cell Li-Ion/Polymer battery charging. Some common application fields include:

  1. Smartphones and Tablets
  2. Portable Media Players
  3. Bluetooth Headsets
  4. Wearable Devices
  5. GPS Navigation Systems
  6. Digital Cameras
  7. Portable Gaming Consoles
  8. Portable Medical Devices
  9. Wireless IoT Devices

Detailed and Complete Alternative Models

  1. MCP73831 - Single-cell Li-Ion/Li-Polymer Charge Management Controller
  2. MAX1555 - Standalone Linear Li+ Battery Charger

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LTC4050EMS-4.2#TRPBF en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of LTC4050EMS-4.2#TRPBF in technical solutions:

  1. Q: What is the LTC4050EMS-4.2#TRPBF? A: The LTC4050EMS-4.2#TRPBF is a linear charger IC designed for single-cell lithium-ion/polymer batteries.

  2. Q: What is the maximum charging current supported by LTC4050EMS-4.2#TRPBF? A: The LTC4050EMS-4.2#TRPBF supports a maximum charging current of 800mA.

  3. Q: Can I use LTC4050EMS-4.2#TRPBF to charge other types of batteries? A: No, the LTC4050EMS-4.2#TRPBF is specifically designed for single-cell lithium-ion/polymer batteries.

  4. Q: What is the input voltage range for LTC4050EMS-4.2#TRPBF? A: The input voltage range for LTC4050EMS-4.2#TRPBF is typically between 4.75V and 6V.

  5. Q: Does LTC4050EMS-4.2#TRPBF have built-in thermal regulation? A: Yes, LTC4050EMS-4.2#TRPBF has built-in thermal regulation to prevent overheating during charging.

  6. Q: Can I use LTC4050EMS-4.2#TRPBF in portable devices? A: Yes, LTC4050EMS-4.2#TRPBF is suitable for use in portable devices due to its small form factor and low power consumption.

  7. Q: Does LTC4050EMS-4.2#TRPBF support battery temperature monitoring? A: Yes, LTC4050EMS-4.2#TRPBF has a built-in temperature monitor to ensure safe charging.

  8. Q: Can I use LTC4050EMS-4.2#TRPBF in fast-charging applications? A: No, LTC4050EMS-4.2#TRPBF is not designed for fast-charging applications. It is more suitable for slower and safer charging.

  9. Q: What are the typical applications of LTC4050EMS-4.2#TRPBF? A: LTC4050EMS-4.2#TRPBF is commonly used in portable devices, wireless sensors, and other low-power applications that require single-cell lithium-ion/polymer battery charging.

  10. Q: Is there any special consideration when designing with LTC4050EMS-4.2#TRPBF? A: It is important to follow the manufacturer's datasheet and guidelines for proper layout and thermal management to ensure optimal performance and reliability of LTC4050EMS-4.2#TRPBF in your design.

Please note that these answers are general and may vary depending on specific application requirements. Always refer to the manufacturer's datasheet and guidelines for accurate information.