MAX1811ESA+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Battery Charger
• Characteristics: High Efficiency, Low Quiescent Current
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Power Management IC for Battery Charging Applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 28V
• Charge Voltage Range: 4.5V to 14V
• Maximum Charge Current: 500mA
• Quiescent Current: 25µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1811ESA+ has the following pin configuration:

1. GND (Ground)
2. IN (Input Voltage)
3. BAT (Battery Connection)
4. PROG (Charge Current Programming)
5. STAT (Status Indicator)
6. CE (Enable Control)
7. OUT (Output Voltage)
8. VCC (Supply Voltage)

Functional Features

• High Efficiency Charging
• Thermal Regulation for Safe Operation
• Programmable Charge Current
• Status Indicator for Charging Progress
• Enable Control for Power Management
• Reverse Battery Protection

Advantages and Disadvantages

Advantages: - High efficiency charging reduces power consumption - Programmable charge current allows flexibility in charging different battery types - Reverse battery protection prevents damage to the charger and battery - Compact package size enables space-saving designs

Disadvantages: - Maximum charge current limited to 500mA, may not be suitable for high-capacity batteries - Limited temperature range of -40°C to +85°C may restrict usage in extreme environments

Working Principles

The MAX1811ESA+ is a power management IC designed for battery charging applications. It operates by converting the input voltage to a regulated output voltage suitable for charging batteries. The charge current can be programmed using an external resistor connected to the PROG pin. The IC incorporates thermal regulation to prevent overheating during charging. It also features reverse battery protection to safeguard against accidental polarity reversal.

Detailed Application Field Plans

The MAX1811ESA+ is widely used in various portable electronic devices, such as: - Smartphones - Tablets - Portable media players - Bluetooth headsets - GPS devices

Its compact size, high efficiency, and programmable charge current make it suitable for these applications where space and power consumption are critical factors.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX1811ESA+ include: - MCP73831 - BQ24075 - LTC4054

These alternatives provide options for designers based on specific requirements and preferences.

In conclusion, the MAX1811ESA+ is a versatile power management IC specifically designed for battery charging applications. Its high efficiency, programmable charge current, and compact package make it an ideal choice for various portable electronic devices. However, its limited maximum charge current and temperature range should be considered when selecting this IC for specific applications.