LTC1699EMS8-82#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: The LTC1699EMS8-82#PBF is a precision voltage reference and supervisory circuit designed for use in various electronic systems. It provides accurate voltage references and monitoring capabilities, making it suitable for applications that require precise voltage regulation and system supervision.

Characteristics: - Precision voltage reference - Supervisory circuit - Accurate voltage regulation - System monitoring capabilities

Package: The LTC1699EMS8-82#PBF is available in an 8-pin MSOP (Mini Small Outline Package) with exposed pad for enhanced thermal performance.

Essence: The essence of the LTC1699EMS8-82#PBF lies in its ability to provide precise voltage references and monitor system parameters, ensuring stable and reliable operation of electronic systems.

Packaging/Quantity: The LTC1699EMS8-82#PBF is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

The LTC1699EMS8-82#PBF features the following specifications:

• Voltage Reference Accuracy: ±0.5%
• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Output Current: 10mA
• Quiescent Current: 50µA (typical)
• Power-On Reset Threshold: 1.25V
• Watchdog Timer Timeout Period: Adjustable

Pin Configuration

The LTC1699EMS8-82#PBF has the following pin configuration:

```

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| | --| VOUT |-- --| GND |-- --| RESET |-- --| WDI |-- --| VCC |-- --| VREF |-- --| MR |-- |___________| ```

• VOUT: Voltage Reference Output
• GND: Ground
• RESET: Reset Output
• WDI: Watchdog Input
• VCC: Supply Voltage
• VREF: Reference Voltage Input
• MR: Manual Reset Input

Functional Features

The LTC1699EMS8-82#PBF offers the following functional features:

1. Precision Voltage Reference: The integrated voltage reference provides a stable and accurate voltage output for use in various applications.
2. System Supervision: The supervisory circuit monitors system parameters such as supply voltage, providing reset signals when necessary to ensure proper system operation.
3. Watchdog Timer: The built-in watchdog timer allows for monitoring of system activity and can generate a reset signal if the system becomes unresponsive.
4. Adjustable Timeout Period: The timeout period of the watchdog timer can be adjusted to suit specific application requirements.

Advantages and Disadvantages

Advantages: - Precise voltage regulation ensures stable performance of electronic systems. - System supervision enhances reliability by providing reset signals when needed. - Adjustable watchdog timer timeout period allows customization for different applications. - Compact MSOP package with exposed pad improves thermal performance.

Disadvantages: - Limited output current capability (10mA). - Requires an external power supply within the specified voltage range.

Working Principles

The LTC1699EMS8-82#PBF operates by comparing the input reference voltage (VREF) with the internal voltage reference. It generates a precise output voltage (VOUT) that can be used as a reference for other components in the system. The supervisory circuit continuously monitors the supply voltage and generates a reset signal (RESET) if it falls below a certain threshold. The watchdog timer monitors system activity through the WDI pin and generates a reset signal if the system becomes unresponsive within the adjustable timeout period.

Application Field Plans

The LTC1699EMS8-82#PBF finds applications in various electronic systems that require precise voltage regulation and system supervision. Some potential application fields include:

1. Power Management Systems: The LTC1699EMS8-82#PBF can be used in power management circuits to provide accurate voltage references and monitor critical system parameters.
2. Industrial Control Systems: It can be employed in industrial control systems to ensure stable operation and provide reset signals in case of power supply fluctuations or system failures.
3. Automotive Electronics: The LTC1699EMS8-82#PBF can be utilized in automotive electronics for voltage regulation and system monitoring, enhancing the reliability of critical components.
4. Medical Devices: It can be integrated into medical devices to maintain precise voltage levels and provide system supervision, ensuring safe and reliable operation.

Alternative Models

Some alternative models that offer similar functionality to the LTC1699EMS8-82#PBF include:

1. MAX6126AASA25+: Precision Voltage Reference with Supervisory Circuit
2. LT6657BHMS8-5: