MAX713CPE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Battery Charger
• Characteristics: High-efficiency, Low-power, Precision Voltage Regulator
• Package: PDIP (Plastic Dual In-Line Package)
• Essence: Charging and maintaining lead-acid batteries
• Packaging/Quantity: Tube/25 pieces

Specifications

• Input Voltage Range: 4.5V to 12V
• Output Voltage Range: 1.25V to 28V
• Maximum Charge Current: 4A
• Operating Temperature Range: -40°C to +85°C
• Lead-Acid Battery Types: Sealed, Gel, Flooded

Detailed Pin Configuration

The MAX713CPE IC has a total of 16 pins. The pin configuration is as follows:

1. VCC: Positive supply voltage input
2. GND: Ground reference
3. BAT: Battery positive terminal
4. ADJ: Output voltage adjustment pin
5. CT: Timing capacitor pin
6. RT: Timing resistor pin
7. ISET: Charge current setting pin
8. THERM: Thermal regulation input
9. CE: Chip enable input
10. PROG: Programming pin
11. STAT: Status output pin
12. VREF: Reference voltage output
13. VBAT: Battery voltage sense input
14. VSS: Negative supply voltage input
15. SRN: Sense resistor negative terminal
16. SRP: Sense resistor positive terminal

Functional Features

• High-efficiency switch-mode operation
• Automatic trickle charging
• Reverse battery protection
• Overvoltage protection
• Short-circuit protection
• Temperature compensation
• LED status indication

Advantages and Disadvantages

Advantages: - High charging efficiency - Wide input voltage range - Comprehensive protection features - Temperature compensation for optimal charging - LED status indication for easy monitoring

Disadvantages: - Limited to lead-acid battery types - Not suitable for other battery chemistries

Working Principles

The MAX713CPE is a switch-mode battery charger IC designed specifically for lead-acid batteries. It operates by converting the input voltage into a high-frequency pulse-width modulated (PWM) signal, which is then used to charge the battery. The IC incorporates various protection features such as reverse battery protection, overvoltage protection, and short-circuit protection to ensure safe and reliable charging.

The charging process involves multiple stages, including bulk charging, absorption charging, and float charging. The IC automatically adjusts the charging current and voltage based on the battery's state of charge and temperature, ensuring optimal charging performance.

Detailed Application Field Plans

The MAX713CPE is widely used in various applications that require charging and maintaining lead-acid batteries. Some common application fields include:

1. Automotive: Used in car battery chargers and maintenance systems.
2. Industrial: Used in backup power systems, uninterruptible power supplies (UPS), and industrial equipment.
3. Renewable Energy: Used in solar power systems and wind energy storage applications.
4. Telecommunications: Used in backup power systems for telecom towers and communication equipment.
5. Marine: Used in boat battery chargers and marine power systems.

Detailed and Complete Alternative Models

1. MAX712CSE: Similar specifications and features, but available in a smaller SOIC package.
2. MAX714C/D: Enhanced version with additional features such as battery temperature monitoring and adjustable charge termination voltage.
3. MAX715C/D: Higher charge current capability (up to 10A) for faster charging.

Note: This is not an exhaustive list, and there may be other alternative models available from different manufacturers.

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