MAX8513EEI+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The MAX8513EEI+ is a voltage reference and supervisory circuit designed for use in various electronic systems. It provides accurate voltage references and monitoring functions to ensure proper operation and protection of the system.

Characteristics: - Voltage reference accuracy: ±1% - Supply voltage range: 2.7V to 5.5V - Low quiescent current: 50µA (typical) - Adjustable reset threshold voltage - Power-on reset delay time: 100ms (typical) - Small package size: 16-pin QSOP

Package: The MAX8513EEI+ is available in a 16-pin QSOP (Quarter Small Outline Package) which offers a compact form factor suitable for space-constrained applications.

Essence: This IC combines the functionality of a voltage reference and a supervisory circuit, providing accurate voltage references and monitoring capabilities in a single package.

Packaging/Quantity: The MAX8513EEI+ is typically supplied in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Voltage Reference Accuracy: ±1%
• Supply Voltage Range: 2.7V to 5.5V
• Quiescent Current: 50µA (typical)
• Reset Threshold Voltage Range: Adjustable from 0.4V to VDD-0.6V
• Power-On Reset Delay Time: 100ms (typical)
• Operating Temperature Range: -40°C to +85°C
• Package Type: 16-pin QSOP

Detailed Pin Configuration

The MAX8513EEI+ features the following pin configuration:

1. VDD - Supply Voltage Input
2. GND - Ground
3. RESET - Reset Output
4. MR - Manual Reset Input
5. VREF - Voltage Reference Output
6. NC - No Connection
7. NC - No Connection
8. NC - No Connection
9. NC - No Connection
10. NC - No Connection
11. NC - No Connection
12. NC - No Connection
13. NC - No Connection
14. NC - No Connection
15. NC - No Connection
16. NC - No Connection

Functional Features

The MAX8513EEI+ offers the following functional features:

1. Voltage Reference: Provides a stable and accurate voltage reference output (VREF) for use in various analog and digital circuits.
2. Reset Output: Monitors the supply voltage and generates a reset signal (RESET) when the voltage drops below a certain threshold, ensuring proper system initialization and protection.
3. Manual Reset Input: Allows for manual triggering of the reset function by asserting a low-level signal on the MR pin.
4. Adjustable Reset Threshold: The reset threshold voltage can be adjusted using external resistors, allowing customization to meet specific system requirements.
5. Power-On Reset Delay: Delays the generation of the reset signal after power is applied, ensuring stable operation during power-up.

Advantages and Disadvantages

Advantages: - Combines voltage reference and supervisory functions in a single IC, reducing component count and board space requirements. - Wide supply voltage range allows compatibility with a variety of systems. - Adjustable reset threshold provides flexibility for different applications. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited number of available pins for additional functionality or I/O expansion. - Not suitable for high-precision voltage reference applications due to ±1% accuracy.

Working Principles

The MAX8513EEI+ operates by continuously monitoring the supply voltage. When the voltage drops below the adjustable reset threshold, the reset output is activated, indicating a power-on reset condition. The reset signal remains active until the supply voltage rises above the threshold and stabilizes.

The voltage reference function provides a stable and accurate voltage output that can be used as a reference for other circuitry within the system. This ensures consistent and reliable operation of analog and digital components.

Detailed Application Field Plans

The MAX8513EEI+ finds applications in various electronic systems where voltage monitoring and accurate voltage references are essential. Some potential application fields include:

1. Power Supply Monitoring: Ensuring proper operation and protection of power supplies by monitoring voltage levels and generating reset signals when necessary.
2. Microcontroller Systems: Providing voltage references for analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other critical components in microcontroller-based systems.
3. Battery-Powered Devices: Monitoring battery voltage to prevent over-discharge and generate low-battery warnings.
4. Industrial Control Systems: Voltage supervision and reference for control circuits in industrial automation and process control systems.