MAX660EPA+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Converter
• Characteristics: Low-power, Monolithic CMOS Voltage Converter
• Package: 8-pin PDIP (Plastic Dual In-Line Package)
• Essence: Converts positive voltage to negative voltage
• Packaging/Quantity: Available in tubes of 25 units or reels of 2,500 units

Specifications

• Input Voltage Range: +1.5V to +10V
• Output Voltage Range: -1.5V to -10V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 120µA (typical)
• Switching Frequency: 10kHz (typical)

Pin Configuration

The MAX660EPA+ has the following pin configuration:

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| | --| V+ GND |-- Pin 1: Positive Supply Voltage (V+) --| VIN VOUT|-- Pin 2: Input Voltage (VIN) / Output Voltage (VOUT) --| OSC N.C.|-- Pin 3: Oscillator Frequency Control (OSC) / No Connection (N.C.) --| C1 C2 |-- Pins 4 and 5: External Capacitors (C1, C2) --| C3 C4 |-- Pins 6 and 7: External Capacitors (C3, C4) --| N.C. V- |-- Pin 8: No Connection (N.C.) / Negative Output Voltage (V-) |___________| ```

Functional Features

• Converts a positive input voltage to a negative output voltage
• Utilizes a switched-capacitor voltage converter architecture
• Low-power consumption, suitable for battery-powered applications
• Provides a regulated negative voltage with high efficiency

Advantages and Disadvantages

Advantages: - Compact and easy-to-use integrated circuit - Wide input voltage range allows flexibility in various applications - Low quiescent current minimizes power consumption - High efficiency ensures optimal performance

Disadvantages: - Limited output current capability (typically up to 50mA) - Requires external capacitors for operation - Not suitable for applications requiring high output voltages

Working Principles

The MAX660EPA+ is based on a switched-capacitor voltage converter architecture. It operates by charging and discharging external capacitors to generate a negative output voltage. The internal oscillator controls the switching frequency, allowing efficient voltage conversion. By adjusting the external capacitors, the desired output voltage can be achieved within the specified range.

Detailed Application Field Plans

The MAX660EPA+ finds application in various fields, including:

1. Portable Electronics:

   • Used in battery-powered devices to generate a negative voltage supply for LCD displays, audio amplifiers, or other components.

2. Industrial Automation:

   • Employed in control systems where a negative voltage is required for analog signal conditioning or biasing circuits.

3. Telecommunications:

   • Utilized in communication equipment to provide a negative voltage source for operational amplifiers, filters, or line drivers.

4. Automotive Electronics:

   • Integrated into automotive systems to generate a negative voltage for sensors, actuators, or lighting modules.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX660EPA+ include:

1. ICL7660CPA: Monolithic CMOS Voltage Converter with similar specifications and pin configuration.
2. MAX1044CPA: Switched-Capacitor Voltage Converter with higher output current capability.
3. LTC1044: Low Power Voltage Converter with extended temperature range.

These alternative models can be considered based on specific application requirements and desired features.

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