MAX7129CQH+D

Product Overview

• Category: Integrated Circuit (IC)
• Use: Battery Charger
• Characteristics: High Efficiency, Fast Charging, Compact Size
• Package: QFN (Quad Flat No-Lead)
• 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
• Output Voltage Range: 4.2V to 14V
• Charging Current Range: 100mA to 2A
• Operating Temperature Range: -40°C to +85°C
• Charging Termination Options: Timer, Voltage, or Temperature
• Protection Features: Overvoltage, Overcurrent, and Thermal Shutdown

Detailed Pin Configuration

The MAX7129CQH+D has a total of 20 pins. The pin configuration is as follows:

1. VCC - Power Supply Input
2. GND - Ground
3. EN - Enable Pin
4. STAT - Status Indicator Output
5. TS - Temperature Sense Input
6. PROG - Programming Pin
7. BAT - Battery Connection
8. VREF - Reference Voltage Output
9. ISET - Charging Current Set Pin
10. VFB - Feedback Voltage Input
11. ILIM - Current Limit Set Pin
12. VSENSE - Current Sense Input
13. VOUT - Output Voltage
14. PGND - Power Ground
15. NC - Not Connected
16. NC - Not Connected
17. NC - Not Connected
18. NC - Not Connected
19. NC - Not Connected
20. NC - Not Connected

Functional Features

• High Efficiency Charging: The MAX7129CQH+D utilizes advanced charging algorithms to maximize the efficiency of the charging process.
• Fast Charging: With a charging current range of 100mA to 2A, the MAX7129CQH+D enables fast charging of batteries.
• Comprehensive Protection: The IC incorporates overvoltage, overcurrent, and thermal shutdown protection features to ensure safe charging operations.
• Flexible Charging Termination Options: The MAX7129CQH+D offers multiple options for charging termination, including timer, voltage, or temperature-based methods.
• Compact Size: The QFN package allows for a compact and space-saving design.

Advantages and Disadvantages

Advantages: - High efficiency charging - Fast charging capability - Comprehensive protection features - Flexible charging termination options - Compact size

Disadvantages: - Limited input voltage range (4.5V to 28V) - Limited output voltage range (4.2V to 14V)

Working Principles

The MAX7129CQH+D is designed to efficiently charge batteries by regulating the charging current and voltage. It employs advanced charging algorithms to optimize the charging process and ensure maximum efficiency. The IC continuously monitors the battery voltage, current, and temperature to provide accurate and safe charging. It also incorporates various protection features to prevent overvoltage, overcurrent, and overheating conditions.

Detailed Application Field Plans

The MAX7129CQH+D is widely used in various battery-powered applications, including:

1. Portable Electronics: It is commonly used in smartphones, tablets, and portable media players to provide efficient and fast charging capabilities.
2. Wearable Devices: The IC is suitable for charging batteries in smartwatches, fitness trackers, and other wearable devices.
3. Medical Devices: It finds application in medical devices such as portable monitors, insulin pumps, and handheld diagnostic tools.
4. Industrial Equipment: The MAX7129CQH+D can be utilized in industrial equipment that requires reliable and efficient battery charging, such as handheld scanners and portable measurement devices.

Detailed and Complete Alternative Models

1. MAX7128CQH+D: Similar to the MAX7129CQH+D, but with a different pin configuration.
2. MAX7130CQH+D: A higher voltage version of the MAX7129CQH+D, suitable for applications requiring an output voltage range of 4.2V to 20V.
3. LTC4000: An alternative IC from Linear Technology Corporation with similar features and capabilities.
4. BQ24650: A battery charger IC from Texas Instruments that offers comparable functionality to the MAX7129CQH+D.

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