TC7660HCOA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Converter
• Characteristics: High-efficiency, Low-power, Inverting DC-to-DC Converter
• Package: 8-Pin SOIC (Small Outline Integrated Circuit)
• Essence: Converts a positive voltage input into a corresponding negative voltage output
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Input Voltage Range: 1.5V to 10V
• Output Voltage Range: -1.5V to -10V
• Output Current: Up to 20mA
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 120µA (typical)

Detailed Pin Configuration

The TC7660HCOA has the following pin configuration:

1. GND: Ground reference for the IC
2. VOUT: Negative voltage output
3. VIN+: Positive voltage input
4. VIN-: Negative voltage input
5. OSC: Oscillator frequency control
6. C1-: External capacitor connection
7. C1+: External capacitor connection
8. VDD: Positive supply voltage input

Functional Features

• High-efficiency voltage conversion
• Low-power consumption
• Wide input voltage range
• Stable and accurate output voltage
• Over-temperature protection
• Short-circuit protection

Advantages

• Compact and space-saving package
• Easy to integrate into various electronic circuits
• Efficiently converts positive voltage to negative voltage
• Suitable for low-power applications
• Provides stable and reliable output voltage

Disadvantages

• Limited output current capacity
• Requires external capacitors for proper operation
• Not suitable for high-power applications

Working Principles

The TC7660HCOA is based on a charge pump voltage converter topology. It utilizes an internal oscillator to generate a square wave signal, which is then used to control the charging and discharging of external capacitors. By alternating the charging and discharging cycles, the IC effectively converts the positive input voltage into a corresponding negative output voltage.

Detailed Application Field Plans

The TC7660HCOA finds applications in various fields, including:

1. Portable electronic devices
2. Battery-powered systems
3. Audio amplifiers
4. Test and measurement equipment
5. Industrial automation
6. Telecommunications

Detailed and Complete Alternative Models

• ICL7660SIPA: 8-Pin PDIP package, similar specifications
• MAX660CPA: 8-Pin DIP package, higher output current capability
• LT1054CN8: 8-Pin PDIP package, wider operating temperature range

These alternative models offer similar functionality and can be considered as substitutes for the TC7660HCOA depending on specific requirements.

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