ICL7660SIBAT

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Converter

Characteristics: - Converts input voltage to a negative output voltage - Low power consumption - Wide operating voltage range - Compact package size - High efficiency conversion

Package: SOIC (Small Outline Integrated Circuit)

Essence: The ICL7660SIBAT is a voltage converter IC that generates a negative output voltage from a positive input voltage. It is commonly used in electronic circuits where a negative voltage source is required.

Packaging/Quantity: The ICL7660SIBAT is available in a standard SOIC package and is typically sold in reels of 2500 units.

Specifications

Input Voltage Range: 1.5V to 12V
Output Voltage Range: -1.5V to -12V
Maximum Output Current: 10mA
Operating Temperature Range: -40°C to +85°C
Supply Voltage Rejection Ratio: 60dB
Switching Frequency: 10kHz

Detailed Pin Configuration

The ICL7660SIBAT has 8 pins, which are assigned specific functions:

GND: Ground reference for the IC.
V+ (Pin 1): Positive supply voltage input.
OSC (Pin 2): Oscillator frequency control pin.
VOUT (Pin 3): Negative output voltage.
CAP+ (Pin 4): Positive terminal of the external flying capacitor.
CAP- (Pin 5): Negative terminal of the external flying capacitor.
C1- (Pin 6): Negative terminal of the charge pump capacitor.
C1+ (Pin 7): Positive terminal of the charge pump capacitor.

Functional Features

Voltage Conversion: The ICL7660SIBAT efficiently converts a positive input voltage to a negative output voltage.
Low Power Consumption: It operates with low power consumption, making it suitable for battery-powered applications.
Wide Operating Voltage Range: The IC can accept input voltages ranging from 1.5V to 12V, providing flexibility in various electronic circuits.
Compact Package Size: The SOIC package ensures a compact footprint, saving space on the circuit board.
High Efficiency Conversion: The ICL7660SIBAT offers high conversion efficiency, minimizing power losses during voltage conversion.

Advantages and Disadvantages

Advantages: - Provides a negative voltage source without the need for additional components. - Low power consumption extends battery life in portable devices. - Wide operating voltage range allows compatibility with different power sources. - Compact package size saves space in electronic designs. - High efficiency conversion reduces power dissipation.

Disadvantages: - Limited maximum output current of 10mA may not be sufficient for certain applications. - Requires external capacitors for proper operation. - May introduce some noise or ripple in the output voltage.

Working Principles

The ICL7660SIBAT utilizes a charge pump voltage converter circuit to generate a negative output voltage. It employs an internal oscillator to control the switching of capacitors, which results in the desired voltage conversion. By using a combination of capacitors and switches, the IC effectively doubles the input voltage magnitude and inverts its polarity to produce a negative output voltage.

Detailed Application Field Plans

The ICL7660SIBAT finds application in various electronic systems, including:

Audio Amplifiers: It can provide a negative supply voltage required by audio amplifier circuits.
LCD Displays: LCD modules often require a negative voltage source for biasing purposes.
Sensor Interfaces: Some sensors operate with a negative supply voltage, which can be generated using this IC.
Data Converters: Certain analog-to-digital converters and digital-to-analog converters require a negative reference voltage.

Detailed and Complete Alternative Models

MAX660CPA: A similar voltage converter IC with comparable specifications and pin configuration.
LTC1044: Another alternative offering voltage conversion capabilities with different package options.
ICL7660CPA: An alternative model from the same manufacturer, offering similar functionality in a different package.

These alternative models can be considered based on specific requirements and availability.

Word count: 515 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ICL7660SIBAT v technických řešeních

Sure! Here are 10 common questions and answers related to the application of ICL7660SIBAT in technical solutions:

Q: What is the ICL7660SIBAT? A: The ICL7660SIBAT is a voltage converter IC that can convert positive voltage to negative voltage or double a positive voltage.
Q: What are the typical applications of the ICL7660SIBAT? A: The ICL7660SIBAT is commonly used in applications such as LCD biasing, RS-232 level shifting, generating negative supply voltage, and voltage doubling.
Q: What is the input voltage range for the ICL7660SIBAT? A: The ICL7660SIBAT has an input voltage range from 1.5V to 12V.
Q: What is the output voltage range of the ICL7660SIBAT? A: The ICL7660SIBAT can generate an output voltage ranging from -1.5V to -12V.
Q: Can the ICL7660SIBAT be used to generate positive voltage as well? A: No, the ICL7660SIBAT is specifically designed to generate negative voltage or double a positive voltage.
Q: How much current can the ICL7660SIBAT provide? A: The ICL7660SIBAT can provide a maximum output current of 100mA.
Q: Is the ICL7660SIBAT suitable for low-power applications? A: Yes, the ICL7660SIBAT is known for its low quiescent current and is suitable for low-power applications.
Q: Does the ICL7660SIBAT require external components for operation? A: Yes, the ICL7660SIBAT requires a few external capacitors and diodes for proper operation.
Q: Can the ICL7660SIBAT tolerate input voltage spikes or transients? A: Yes, the ICL7660SIBAT has built-in protection features to handle input voltage spikes and transients.
Q: Is the ICL7660SIBAT available in different package options? A: Yes, the ICL7660SIBAT is available in various package options, including SOIC, PDIP, and SOT-23.