ST662ACD

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ST662ACD

IC REG CHARG PUMP 12V 30MA 8SOIC

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Thông số kỹ thuật

Part Status Obsolete
Function Step-Up
Output Configuration Positive
Topology Charge Pump
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 4.5V
Voltage - Input (Max) 5.5V
Voltage - Output (Min/Fixed) 12V
Current - Output 30mA
Frequency - Switching 400kHz
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 ST662

Tổng quan

Description

The ST662ACD is a specialized integrated circuit, often used in electronics for voltage regulation or conversion purposes. It typically functions as a step-up (boost) DC-DC converter, allowing it to take a lower input voltage and convert it to a higher, more stable output voltage. This is essential in applications where the power supply voltage is lower than the required operating voltage of a device or circuit.
Key features of the ST662ACD may include high efficiency, low quiescent current, and a compact design, making it suitable for battery-powered devices or space-constrained applications. The device might also offer features like over-current protection, thermal shutdown, and adjustable output voltage, providing flexibility and safety in various applications.
In practical applications, the ST662ACD is often utilized in portable electronics, instrumentation, and other scenarios where efficient power management is critical. Its ease of integration into circuits and reliable performance make it a popular choice among engineers and designers seeking effective voltage regulation solutions.

Features

The ST662ACD is a voltage converter IC produced by STMicroelectronics. It is primarily used to generate a negative voltage from a positive input voltage, making it suitable for applications that require dual power supply rails. Key features include:
1. Low Power Consumption: It is designed for applications requiring minimal energy use.
2. Wide Input Voltage Range: Supports a broad range of input voltages, enhancing its versatility across different applications.
3. Output Current Capability: Can supply adequate output current suitable for small to medium loads.
4. High Efficiency: Operates efficiently to maximize battery life in portable applications.
5. Compact Package: Available in a small package, making it ideal for space-constrained designs.
6. Simple Implementation: Requires few external components, simplifying circuit design.
7. Protection Features: Includes mechanisms to protect against certain fault conditions, ensuring reliable operation.
These features make the ST662ACD a practical choice for applications like LCD biasing, operational amplifier power supplies, and other situations requiring negative voltage generation.

Package

The ST662ACD is a device from STMicroelectronics, and it comes in a SO-8 package type. The SO-8 package is a small outline package with 8 pins, commonly used for integrated circuits.

Pinout

The ST662ACD is a switched capacitor DC-DC voltage converter. It typically comes in an 8-pin package. Below is a concise description of the pin functions:
1. V+: Positive Supply Voltage. It is the input voltage pin.
2. GND: Ground. This pin is connected to the ground of the system.
3. CAP+: Positive Terminal of the External Capacitor. Used with an external capacitor for charge pumping.
4. CAP-: Negative Terminal of the External Capacitor. Used with an external capacitor for charge pumping.
5. VOUT: Output Voltage. The regulated output voltage is available at this pin.
6. FB: Feedback. Used to adjust the output voltage.
7. SHDN: Shutdown. A low signal on this pin disables the device, reducing power consumption.
8. COMP: Compensation. Used for stability of the internal control loop.
This device is typically used for generating a higher or inverted voltage from a lower voltage input, suitable for battery-powered devices and systems requiring a simple boost or inverter function.

Manufacturer

The ST662ACD is manufactured by STMicroelectronics, a global semiconductor company. STMicroelectronics is known for designing, developing, manufacturing, and marketing a wide range of semiconductor products. The company operates in various sectors, including automotive, industrial, personal electronics, and communications equipment. With a focus on innovation and sustainability, STMicroelectronics provides solutions that cover all aspects of modern electronics, from energy management and power conversion to analog and digital processing.

Application

The ST662ACD is a charge pump voltage converter primarily used in applications requiring a regulated negative voltage output from a positive input voltage, such as in LCD biasing, operational amplifier power supplies, and interface power supplies. Its compact size and low power consumption make it suitable for portable and battery-powered devices. Additionally, it can be used in systems requiring dual supplies, such as split-rail op-amp circuits.

Equivalent

The ST662ACD is a voltage doubler and inverter. Equivalent products include the MAX1044, ICL7660, and TC1044. These chips provide similar functionalities, such as voltage conversion, and are often used in applications requiring voltage doubling or inversion. Always check the datasheets to ensure compatibility with your specific requirements.

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