規格
| 屬性 | 價值 |
| Package | Tube |
| ProductStatus | Active |
| Function | Ratiometric |
| OutputConfiguration | Positive or Negative |
| Topology | Charge Pump |
| OutputType | Fixed |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 1.5V |
| Voltage-Input(Max) | 15V |
| Voltage-Output(Min/Fixed) | -Vin, 2Vin |
| Current-Output | 20mA |
| Frequency-Switching | 10kHz ~ 35kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
概述
Description
The TC7662BEOA is a monolithic charge pump voltage converter that is typically used to invert input voltages. It is part of the TC7662 series and is designed to deliver high-performance voltage conversion with minimal external components. This makes it particularly useful in battery-operated and portable applications where space and power efficiency are crucial.
Key features include a wide input voltage range, low quiescent current, and high power efficiency. The device operates by using a charge-pump principle where capacitors are alternately charged and discharged to invert the input voltage. It doesn't require inductors, which simplifies the circuit design and lowers the cost.
The TC7662BEOA is often employed in applications needing negative voltage rails such as LCD biasing, sensor power, and operational amplifier circuits. The "B" in the part number typically denotes specific variations in specifications or manufacturing processes. Always refer to the manufacturer's datasheet for precise electrical characteristics and application guidelines.
Key features include a wide input voltage range, low quiescent current, and high power efficiency. The device operates by using a charge-pump principle where capacitors are alternately charged and discharged to invert the input voltage. It doesn't require inductors, which simplifies the circuit design and lowers the cost.
The TC7662BEOA is often employed in applications needing negative voltage rails such as LCD biasing, sensor power, and operational amplifier circuits. The "B" in the part number typically denotes specific variations in specifications or manufacturing processes. Always refer to the manufacturer's datasheet for precise electrical characteristics and application guidelines.
Equivalent
The TC7662BEOA is a charge pump voltage converter, primarily used for voltage inversion. Equivalent products include the ICL7662 and LT1054. The ICL7662 is a popular pin-compatible alternative, while the LT1054 offers similar functionality with some enhanced features like higher current output. Other alternatives include the MAX1044 and 7660 series chips, such as the LTC1044. When choosing an equivalent, consider factors like voltage range, current capacity, and specific application requirements.
Features
The TC7662BEOA is a charge pump voltage converter IC designed to invert input voltages. Key features include:
1. Voltage Range: Operates typically with input voltages between +1.5V and +15V.
2. Output: Provides a negative output voltage equal in magnitude to the input voltage.
3. Efficiency: High efficiency with low power consumption, making it suitable for battery-powered applications.
4. Low Quiescent Current: Features low quiescent current, typically in the microamp range, which helps minimize power usage.
5. Operating Temperature: Suitable for a broad range of temperatures, typically -40°C to +85°C.
6. Package Options: Available in different packages such as SOIC, PDIP, etc., for various design requirements.
7. Ease of Use: Requires minimal external components, simplifying the design process.
8. Applications: Used in applications like operational amplifier power supplies, data acquisition systems, and portable devices where negative voltages are needed.
These features make the TC7662BEOA a versatile choice for applications requiring efficient voltage inversion.
1. Voltage Range: Operates typically with input voltages between +1.5V and +15V.
2. Output: Provides a negative output voltage equal in magnitude to the input voltage.
3. Efficiency: High efficiency with low power consumption, making it suitable for battery-powered applications.
4. Low Quiescent Current: Features low quiescent current, typically in the microamp range, which helps minimize power usage.
5. Operating Temperature: Suitable for a broad range of temperatures, typically -40°C to +85°C.
6. Package Options: Available in different packages such as SOIC, PDIP, etc., for various design requirements.
7. Ease of Use: Requires minimal external components, simplifying the design process.
8. Applications: Used in applications like operational amplifier power supplies, data acquisition systems, and portable devices where negative voltages are needed.
These features make the TC7662BEOA a versatile choice for applications requiring efficient voltage inversion.
Pinout
The TC7662BEOA is an integrated circuit designed for voltage conversion, specifically known as a charge pump voltage inverter. It is used to invert the input voltage, effectively creating a negative voltage from a positive voltage source.
The TC7662BEOA typically comes in an 8-pin dual in-line package (DIP) or small outline package (SOIC). The pin functions are generally as follows:
1. V+: Positive supply voltage input.
2. CAP+: Positive terminal for the charge pump capacitor.
3. GND: Ground reference.
4. CAP-: Negative terminal for the charge pump capacitor.
5. VOUT: Output voltage, which is the inverted voltage.
6. LV (Low Voltage): Used to optimize performance at lower input voltages.
7. NC (No Connect): Not connected; sometimes used for other functions depending on the variant.
8. OSC (Oscillator Control): Used to control the internal oscillator frequency.
This IC is useful in applications requiring a negative voltage rail derived from a single positive supply, such as in dual-supply analog circuits.
The TC7662BEOA typically comes in an 8-pin dual in-line package (DIP) or small outline package (SOIC). The pin functions are generally as follows:
1. V+: Positive supply voltage input.
2. CAP+: Positive terminal for the charge pump capacitor.
3. GND: Ground reference.
4. CAP-: Negative terminal for the charge pump capacitor.
5. VOUT: Output voltage, which is the inverted voltage.
6. LV (Low Voltage): Used to optimize performance at lower input voltages.
7. NC (No Connect): Not connected; sometimes used for other functions depending on the variant.
8. OSC (Oscillator Control): Used to control the internal oscillator frequency.
This IC is useful in applications requiring a negative voltage rail derived from a single positive supply, such as in dual-supply analog circuits.
Manufacturer
The TC7662BEOA is manufactured by Microchip Technology Inc. Microchip is a leading semiconductor company that designs, manufactures, and sells a range of microcontroller, mixed-signal, analog, and Flash-IP integrated circuits. The company serves a variety of industries, including automotive, aerospace, consumer electronics, and industrial applications. Microchip is known for providing comprehensive system solutions and support, enabling its customers to bring their products to market efficiently.
Application
The TC7662BEOA is a charge pump voltage converter primarily used for applications requiring voltage inversion or doubling. Key application areas include:
1. Battery-Powered Devices: Utilized to maximize battery life by efficiently converting voltages.
2. LCD Biasing: Provides necessary negative or doubled voltage levels for LCD displays.
3. Operational Amplifiers: Supplies the needed negative voltage rail.
4. Data Acquisition Systems: Assists in powering different components requiring varied voltage levels.
5. Portable Instruments: Ensures efficient power management in compact devices.
6. Electronics with Dual Power Requirements: Offers a simple solution for generating additional required voltage levels.
The TC7662BEOA is valued for its low current consumption and wide operating voltage range.
1. Battery-Powered Devices: Utilized to maximize battery life by efficiently converting voltages.
2. LCD Biasing: Provides necessary negative or doubled voltage levels for LCD displays.
3. Operational Amplifiers: Supplies the needed negative voltage rail.
4. Data Acquisition Systems: Assists in powering different components requiring varied voltage levels.
5. Portable Instruments: Ensures efficient power management in compact devices.
6. Electronics with Dual Power Requirements: Offers a simple solution for generating additional required voltage levels.
The TC7662BEOA is valued for its low current consumption and wide operating voltage range.
Package
The TC7662BEOA is available in an 8-pin SOIC (Small Outline Integrated Circuit) package. This type of package is commonly used for surface-mounted electronic components, providing a compact and efficient design suitable for various applications.
