TL7660IDGKR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Converter

Characteristics: - Converts a positive input voltage to a corresponding negative output voltage - Provides a regulated output voltage with high efficiency - Suitable for various applications requiring negative voltage supply

Package: DGK (8-pin SOIC package)

Essence: TL7660IDGKR is a voltage converter IC that generates a negative voltage from a positive input voltage.

Packaging/Quantity: TL7660IDGKR is available in reels, and each reel contains 2500 pieces.

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
• Supply Voltage Rejection Ratio: 70dB
• Switching Frequency: 10kHz

Detailed Pin Configuration

The TL7660IDGKR IC has the following pin configuration:

1. GND (Ground)
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)
7. C2+ (External Capacitor Connection)
8. C2- (External Capacitor Connection)

Functional Features

• High Efficiency: TL7660IDGKR provides a regulated negative output voltage with high efficiency, minimizing power losses.
• Wide Input Voltage Range: It can accept input voltages ranging from 1.5V to 10V, making it suitable for various applications.
• Low Quiescent Current: The IC has a low quiescent current, reducing power consumption when not in use.
• Overtemperature Protection: TL7660IDGKR incorporates overtemperature protection to prevent damage due to excessive heat.

Advantages and Disadvantages

Advantages: - Efficient voltage conversion - Wide input voltage range - Low quiescent current - Overtemperature protection

Disadvantages: - Limited output current capacity (up to 20mA) - Requires external capacitors for proper operation

Working Principles

TL7660IDGKR utilizes charge pumps to generate a negative voltage from a positive input voltage. The internal oscillator controls the switching frequency, which drives the charge pump circuitry. The charge pump transfers energy from the input to the output, resulting in a regulated negative voltage at the VOUT pin.

Detailed Application Field Plans

The TL7660IDGKR IC finds applications in various fields, including:

1. Portable Electronics: It can be used to generate a negative voltage supply for LCD displays, backlighting systems, or audio amplifiers in portable devices.
2. Industrial Automation: TL7660IDGKR is suitable for generating negative voltages required in industrial control systems, motor drivers, and sensor interfaces.
3. Automotive Electronics: It can be utilized in automotive applications such as dashboard displays, LED lighting, and audio systems that require a negative voltage source.
4. Telecommunications: TL7660IDGKR can provide a negative voltage supply for telecommunication equipment like routers, switches, and base stations.

Detailed and Complete Alternative Models

Some alternative models to TL7660IDGKR are:

1. ICL7660SIBAZ (Intersil Corporation)
2. MAX1044CPA (Maxim Integrated)
3. LTC1044CN8#PBF (Analog Devices)
4. MC34063ADR2G (ON Semiconductor)

These alternative models offer similar functionality and can be considered as substitutes for TL7660IDGKR in various applications.

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