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ICL7662CBA

Name: ICL7662CBA
Rating: 4.7 (12 reviews)

IC REG CHARGE PUMP 8SOIC

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規格

Part Status	Obsolete
Function	Ratiometric
Output Configuration	Negative
Topology	Charge Pump
Output Type	Fixed
Number of Outputs	1
Voltage - Input (Min)	4.5V
Voltage - Input (Max)	20V
Voltage - Output (Min/Fixed)	-Vin
Frequency - Switching	10kHz
Synchronous Rectifier	No
Operating Temperature	0°C ~ 70°C (TA)
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
Base Product Number	ICL7662

概述

Description

The ICL7662CBA is a high-performance voltage converter and charge pump IC designed for generating negative voltage from a positive supply. It utilizes a switched-capacitor architecture, allowing it to efficiently convert input voltages (typically from +2V to +12V) into a negative output voltage (up to -12V). This IC is commonly used in applications requiring bipolar power supplies, such as operational amplifiers, analog circuits, and sensors.
Key features of the ICL7662CBA include low output impedance, high efficiency, and minimal external components, making it user-friendly. It also offers a high ripple rejection ratio and operates at a wide temperature range. With an internal oscillator that operates at around 10 kHz, the device enables reliable performance in various electronic applications.
The ICL7662CBA is available in an 8-pin DIP package, and its ease of use and compact design make it a popular choice for designers needing a simple solution for negative voltage generation.

Features

The ICL7662CBA is a precision voltage converter designed for generating negative voltages from a positive supply. Key features include:
1. Voltage Inversion: Converts +5V to -5V output with minimal external components.
2. Output Current: Provides up to 20mA output current, suitable for driving op-amps and other loads.
3. High Efficiency: Utilizes a charge pump technique for efficient operation.
4. Low Quiescent Current: Consumes only 120 µA, making it power-efficient for battery-operated devices.
5. Wide Voltage Range: Operates with supply voltages from +1.5V to +12V.
6. Output Voltage Regulation: Maintains stable output, even under varying load conditions.
7. Compact Package: Available in an 8-pin DIP or SOIC package, facilitating integration into various designs.
Ideal for applications in signal processing and instrumentation, the ICL7662CBA is commonly used in op-amp circuits, active filters, and other electronic devices requiring a negative voltage supply.

Package

The ICL7662CBA is housed in a 16-pin Dual In-line Package (DIP).

Pinout

The ICL7662CBA is an integrated circuit with a pin count of 8. It functions as a voltage converter, specifically a charge pump that can generate a negative voltage from a positive supply voltage.
Here are the pin functions:
1. V+ (Pin 1): Positive supply voltage input.
2. V- (Pin 2): Negative output voltage.
3. GND (Pin 3): Ground connection.
4. SW (Pin 4): Switch control for charge pump operation.
5. C1+ (Pin 5): Positive terminal of the first capacitor in the charge pump circuit.
6. C1- (Pin 6): Negative terminal of the first capacitor, connects to the switch.
7. C2+ (Pin 7): Positive terminal of the second capacitor.
8. C2- (Pin 8): Negative terminal of the second capacitor.
The ICL7662CBA is commonly used in applications requiring a negative voltage supply or voltage inversion.

Manufacturer

The ICL7662CBA is manufactured by Intersil, a company that specializes in analog and mixed-signal semiconductors. Intersil, now a part of Renesas Electronics Corporation, focuses on providing innovative solutions for power management, signal processing, and wireless communications. The ICL7662 is particularly known for its ability to produce a negative voltage from a positive supply, making it widely used in various electronic applications, including instrumentation and portable devices. Renesas, the parent company, is a major player in the semiconductor industry, offering a broad range of products for automotive, industrial, and consumer electronics markets.

Application

The ICL7662CBA is widely used in various applications, including voltage regulation, power supply circuits, analog signal processing, and battery management systems. It serves as a charge pump voltage converter, enabling negative voltage generation from a positive supply. Common applications include operational amplifiers, reference voltage generators, and instrumentation systems, where low power consumption and compact design are essential.

Equivalent

The ICL7662CBA is a dual power supply converter chip. Equivalent products include:
1. MAX660 - Maxim Integrated
2. LM7660 - Texas Instruments
3. LTC1044 - Analog Devices
4. LTC1660 - Analog Devices
These devices also provide similar voltage conversion capabilities. Always check specifications for exact matches in performance and features.