사양
| 속성 | 가치 |
| Package / Case | Tape & Reel (TR),Bulk |
| 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 |
개요
Description
The MAX680ESA+T is a microprocessor supervisory circuit manufactured by Maxim Integrated. It is designed to monitor power supply levels in electronic systems and ensure proper operation by providing reliable reset signals during power-up, power-down, and brownout conditions. The device features a precision voltage reference and comparator to monitor the supply voltage. When the voltage drops below a predefined threshold, the MAX680ESA+T issues a reset signal to the microprocessor, preventing erroneous operations.
Key features include a manual reset input, a low supply current, and a reset timeout period. The device comes in an 8-pin SOIC package and operates over a wide temperature range suitable for various applications. Its compact size and high reliability make it ideal for use in consumer electronics, industrial controls, and automotive systems. The "+T" indicates that the device is supplied on a tape for automated assembly processes. Overall, the MAX680ESA+T helps enhance system stability and reliability by ensuring that microprocessors are reset when necessary.
Key features include a manual reset input, a low supply current, and a reset timeout period. The device comes in an 8-pin SOIC package and operates over a wide temperature range suitable for various applications. Its compact size and high reliability make it ideal for use in consumer electronics, industrial controls, and automotive systems. The "+T" indicates that the device is supplied on a tape for automated assembly processes. Overall, the MAX680ESA+T helps enhance system stability and reliability by ensuring that microprocessors are reset when necessary.
Equivalent
The MAX680ESA+T is a voltage inverter IC. Equivalent products include:
1. Texas Instruments LM2661 - A switched capacitor voltage converter.
2. Linear Technology (Analog Devices) LTC1046 - A charge pump voltage inverter.
3. Microchip TC7660 - A charge pump DC-DC converter.
These alternatives offer similar functionalities, but be sure to check their specific specifications and footprints to ensure compatibility with your application.
1. Texas Instruments LM2661 - A switched capacitor voltage converter.
2. Linear Technology (Analog Devices) LTC1046 - A charge pump voltage inverter.
3. Microchip TC7660 - A charge pump DC-DC converter.
These alternatives offer similar functionalities, but be sure to check their specific specifications and footprints to ensure compatibility with your application.
Features
The MAX680ESA+T is a monolithic charge-pump voltage inverter integrated circuit. Key features include:
1. Input Voltage Range: Operates from a 1.5V to 5.5V input voltage.
2. Output Voltage: Provides a regulated negative output voltage.
3. Efficiency: High efficiency with low quiescent current, ideal for battery-powered applications.
4. Output Current: Capable of delivering up to 100mA output current.
5. Low Noise: Offers low noise operation due to its regulated output.
6. Compact Size: Available in an 8-pin SOIC package, suitable for space-constrained designs.
7. Temperature Range: Operates over a wide temperature range of -40°C to +85°C.
8. Protection Features: Includes thermal shutdown and current limiting for enhanced reliability.
9. No Inductors Required: Simplifies design by eliminating the need for inductors in the circuit.
These features make the MAX680ESA+T ideal for applications requiring a negative voltage in a compact, efficient form.
1. Input Voltage Range: Operates from a 1.5V to 5.5V input voltage.
2. Output Voltage: Provides a regulated negative output voltage.
3. Efficiency: High efficiency with low quiescent current, ideal for battery-powered applications.
4. Output Current: Capable of delivering up to 100mA output current.
5. Low Noise: Offers low noise operation due to its regulated output.
6. Compact Size: Available in an 8-pin SOIC package, suitable for space-constrained designs.
7. Temperature Range: Operates over a wide temperature range of -40°C to +85°C.
8. Protection Features: Includes thermal shutdown and current limiting for enhanced reliability.
9. No Inductors Required: Simplifies design by eliminating the need for inductors in the circuit.
These features make the MAX680ESA+T ideal for applications requiring a negative voltage in a compact, efficient form.
Pinout
The MAX680ESA+T is an 8-pin device. It is a MAX680 series microprocessor supervisory circuit designed to monitor power supplies in microprocessor and digital systems. The primary functions of the MAX680 include:
1. Reset Output: Provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions.
2. Manual Reset Input: Allows an external pushbutton or logic signal to initiate a reset.
3. Watchdog Timer: Monitors microprocessor activity and triggers a reset if the microprocessor fails to toggle the watchdog input within a specified timeout period.
4. Power Supply Monitoring: Monitors the system's power supply voltage and issues a reset if the voltage falls below a predetermined threshold.
The device is commonly used to ensure reliable operation by maintaining proper reset conditions for microcontrollers during power fluctuations.
1. Reset Output: Provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions.
2. Manual Reset Input: Allows an external pushbutton or logic signal to initiate a reset.
3. Watchdog Timer: Monitors microprocessor activity and triggers a reset if the microprocessor fails to toggle the watchdog input within a specified timeout period.
4. Power Supply Monitoring: Monitors the system's power supply voltage and issues a reset if the voltage falls below a predetermined threshold.
The device is commonly used to ensure reliable operation by maintaining proper reset conditions for microcontrollers during power fluctuations.
Manufacturer
The MAX680ESA+T is manufactured by Maxim Integrated, which is a company known for designing and producing analog and mixed-signal integrated circuits. Maxim Integrated provides a wide range of products that cater to various applications, including power management, sensors, and interface technologies, among others. The company is recognized for its innovation in the semiconductor industry and serves sectors such as automotive, industrial, communications, and consumer electronics. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., another leading company in the semiconductor industry, which further expanded its portfolio and market reach.
Application
The MAX680ESA+T is a charge-pump voltage inverter primarily used in applications requiring negative voltage generation from a positive supply. Its key application areas include:
1. Power Supply Designs: Useful in generating negative supply voltages for analog circuits.
2. Portable Devices: Ideal for battery-operated equipment due to its low power consumption.
3. Data Acquisition Systems: Provides negative voltages for analog signal processing.
4. Operational Amplifier Circuits: Supplies negative voltages needed for dual-supply op-amp configurations.
5. Telecom Equipment: Used in circuits requiring bipolar supplies.
Its compact size and efficiency make it suitable for these and other applications where space and power efficiency are critical.
1. Power Supply Designs: Useful in generating negative supply voltages for analog circuits.
2. Portable Devices: Ideal for battery-operated equipment due to its low power consumption.
3. Data Acquisition Systems: Provides negative voltages for analog signal processing.
4. Operational Amplifier Circuits: Supplies negative voltages needed for dual-supply op-amp configurations.
5. Telecom Equipment: Used in circuits requiring bipolar supplies.
Its compact size and efficiency make it suitable for these and other applications where space and power efficiency are critical.
Package
The MAX680ESA+T is a SOT-8 package, also known as a Small Outline Transistor package with 8 pins. It is typically used for integrated circuits requiring a compact form factor. The "+T" indicates it is supplied in a tape-and-reel format for automated assembly processes.
