規格
| 屬性 | 價值 |
| Package / Case | Tube,Tube |
| Part Status | Obsolete |
| Function | Ratiometric |
| Output Configuration | Positive and Negative (Dual Rail) |
| Topology | Charge Pump |
| Output Type | Fixed |
| Number of Outputs | 2 |
| Voltage - Input (Min) | 2V |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | ±2Vin |
| Current - Output | 10mA |
| Frequency - Switching | 8kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
The MAX680ESA is a microprocessor supervisory circuit designed to monitor power supply levels in digital systems. It is part of Maxim Integrated's MAX680 series, providing essential functions to enhance system reliability, such as power-on reset generation, watchdog timer, and manual reset input. This device ensures that microprocessors operate correctly by monitoring supply voltage levels and asserting a reset signal when the voltage drops below a defined threshold.
Key features of the MAX680ESA include a reset output that remains asserted for a specified time after the supply voltage has stabilized, preventing system malfunctions during power-up and power-down sequences. The device typically operates at a low quiescent current, making it suitable for battery-powered applications. It is available in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is compact and suitable for space-constrained designs.
The MAX680ESA helps maintain system integrity by ensuring that microprocessors do not execute erroneous code during power fluctuations, thereby reducing the risk of system crashes and data corruption.
Key features of the MAX680ESA include a reset output that remains asserted for a specified time after the supply voltage has stabilized, preventing system malfunctions during power-up and power-down sequences. The device typically operates at a low quiescent current, making it suitable for battery-powered applications. It is available in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is compact and suitable for space-constrained designs.
The MAX680ESA helps maintain system integrity by ensuring that microprocessors do not execute erroneous code during power fluctuations, thereby reducing the risk of system crashes and data corruption.
Equivalent
The MAX680ESA is a microprocessor supervisory circuit. Equivalent products include:
1. MCP100 from Microchip Technology
2. TC54 from Microchip Technology
3. LTC2900 from Analog Devices (Linear Technology)
4. STM809/810 from STMicroelectronics
5. TPS382x series from Texas Instruments
These alternatives provide similar functionality, such as monitoring power supply voltages and ensuring reliable system resets. Always consult datasheets to confirm compatibility.
1. MCP100 from Microchip Technology
2. TC54 from Microchip Technology
3. LTC2900 from Analog Devices (Linear Technology)
4. STM809/810 from STMicroelectronics
5. TPS382x series from Texas Instruments
These alternatives provide similar functionality, such as monitoring power supply voltages and ensuring reliable system resets. Always consult datasheets to confirm compatibility.
Features
The MAX680ESA is a voltage inverter integrated circuit that provides efficient voltage inversion for various applications. Key features include:
1. Voltage Inversion: Converts a positive input voltage into a negative output voltage, making it useful for applications requiring negative supply rails.
2. Wide Operating Voltage Range: Typically operates with input voltages from +1.5V to +5.5V.
3. Low Quiescent Current: Its design ensures minimal power consumption when idle, enhancing energy efficiency.
4. Compact Package: Comes in an 8-pin SOIC package, facilitating integration into space-constrained designs.
5. High Efficiency: Delivers up to 90% efficiency, reducing power loss and heat generation in the system.
6. No External Diodes Needed: Simplifies the design by eliminating the need for external diodes, reducing component count and cost.
7. Operating Temperature Range: Supports industrial temperature ranges, typically from -40°C to +85°C.
These features make the MAX680ESA an ideal choice for battery-powered and portable devices where size, efficiency, and simplicity are critical.
1. Voltage Inversion: Converts a positive input voltage into a negative output voltage, making it useful for applications requiring negative supply rails.
2. Wide Operating Voltage Range: Typically operates with input voltages from +1.5V to +5.5V.
3. Low Quiescent Current: Its design ensures minimal power consumption when idle, enhancing energy efficiency.
4. Compact Package: Comes in an 8-pin SOIC package, facilitating integration into space-constrained designs.
5. High Efficiency: Delivers up to 90% efficiency, reducing power loss and heat generation in the system.
6. No External Diodes Needed: Simplifies the design by eliminating the need for external diodes, reducing component count and cost.
7. Operating Temperature Range: Supports industrial temperature ranges, typically from -40°C to +85°C.
These features make the MAX680ESA an ideal choice for battery-powered and portable devices where size, efficiency, and simplicity are critical.
Pinout
The MAX680ESA is an 8-pin device. It is a voltage inverter charge pump that converts a positive input voltage to a negative output voltage. The primary function of the MAX680ESA is to provide a simple and efficient way to generate a negative supply voltage from a positive supply, which is often needed in dual-supply applications. Key features include low quiescent current, high efficiency, and the ability to operate over a wide input voltage range. The 8-pin configuration typically includes pins for input voltage, output voltage, ground, and connections for external capacitors used in the charge pump process.
Manufacturer
The MAX680ESA is manufactured by Maxim Integrated. Maxim Integrated is a company that designs, manufactures, and sells analog and mixed-signal integrated circuits. The company caters to a wide range of industries, including automotive, industrial, communications, consumer electronics, and computing. Maxim Integrated focuses on providing innovative solutions for power management, signal processing, and other applications that require precision analog technology.
In 2021, Maxim Integrated was acquired by Analog Devices, Inc. (ADI), a leader in the analog, mixed-signal, and digital signal processing industries. This acquisition aimed to expand the portfolio and capabilities of both companies, enhancing their ability to deliver comprehensive solutions to diverse markets. Despite the acquisition, the legacy and products of Maxim Integrated, like the MAX680ESA, continue to be part of the broader product offerings under ADI.
In 2021, Maxim Integrated was acquired by Analog Devices, Inc. (ADI), a leader in the analog, mixed-signal, and digital signal processing industries. This acquisition aimed to expand the portfolio and capabilities of both companies, enhancing their ability to deliver comprehensive solutions to diverse markets. Despite the acquisition, the legacy and products of Maxim Integrated, like the MAX680ESA, continue to be part of the broader product offerings under ADI.
Application
The MAX680ESA is a charge pump voltage inverter commonly used in applications requiring a negative voltage supply. Key applications include:
1. LCD Biasing: It provides a negative voltage necessary for driving the contrast settings in LCD displays.
2. Operational Amplifiers: Powers op-amps in single-supply systems by generating a complementary negative supply.
3. Data Conversion: Utilized in analog-to-digital and digital-to-analog converters to achieve bipolar signals.
4. Portable Devices: Suitable for battery-operated devices where a negative rail is required.
5. Sensor Interfaces: Provides the necessary voltage levels for sensors that need dual supplies.
Its compact size and efficiency make it ideal for space-constrained designs.
1. LCD Biasing: It provides a negative voltage necessary for driving the contrast settings in LCD displays.
2. Operational Amplifiers: Powers op-amps in single-supply systems by generating a complementary negative supply.
3. Data Conversion: Utilized in analog-to-digital and digital-to-analog converters to achieve bipolar signals.
4. Portable Devices: Suitable for battery-operated devices where a negative rail is required.
5. Sensor Interfaces: Provides the necessary voltage levels for sensors that need dual supplies.
Its compact size and efficiency make it ideal for space-constrained designs.
Package
The MAX680ESA is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package.
