TC7660HCPA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Converter
• Characteristics: High-performance, low-power voltage converter
• Package: PDIP (Plastic Dual In-line Package)
• Essence: Converts a positive input voltage to a corresponding negative output voltage
• Packaging/Quantity: Available in tubes of 25 units

Specifications

• Input Voltage Range: 1.5V to 12V
• Output Voltage Range: -1.5V to -12V
• Output Current: Up to 20mA
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage: 1.5V to 12V
• Quiescent Current: 120µA (typical)

Detailed Pin Configuration

The TC7660HCPA has eight pins arranged as follows:

```

---

| | | U1 | |___________|

1 2 3 4 5 6 ┌─┬─┬─┬─┬─┬─┐ │1│2│3│4│5│6│ └─┴─┴─┴─┴─┴─┘ ```

Pin Description: 1. GND: Ground reference 2. VOUT: Negative output voltage 3. VIN: Positive input voltage 4. OSC: Oscillator frequency control 5. C1-: External capacitor connection 6. C1+: External capacitor connection

Functional Features

• Converts a positive input voltage to a corresponding negative output voltage
• Low quiescent current consumption
• Wide input voltage range
• High output current capability
• Oscillator frequency control for adjustable output frequency

Advantages and Disadvantages

Advantages: - Efficient voltage conversion - Low power consumption - Wide input voltage range - High output current capability

Disadvantages: - Requires external capacitors for operation - Limited to negative voltage conversion only

Working Principles

The TC7660HCPA is a voltage converter that utilizes charge-pump technology to convert a positive input voltage into a corresponding negative output voltage. It achieves this by using an internal oscillator to generate a square wave, which is then used to drive the charge pump circuitry. The charge pump circuitry alternately charges and discharges external capacitors, resulting in the desired negative output voltage.

Detailed Application Field Plans

The TC7660HCPA can be used in various applications, including:

1. Portable electronic devices: Provides a negative voltage supply for LCD displays, audio amplifiers, and other components.
2. Industrial automation: Used in control systems to generate negative voltages required for specific sensors and actuators.
3. Automotive electronics: Enables the generation of negative voltages for automotive lighting systems, audio systems, and other components.
4. Telecommunications: Used in communication equipment to provide negative voltage supplies for certain modules and circuits.

Detailed and Complete Alternative Models

1. ICL7660CPA: Similar voltage converter IC with comparable specifications and pin configuration.
2. MAX1044CPA: Voltage converter IC with extended temperature range and higher output current capability.
3. LT1054CP: Integrated switched-capacitor voltage converter with adjustable output voltage.

These alternative models offer similar functionality and can be considered as substitutes for the TC7660HCPA in various applications.

Word count: 452 words