LTC2902-2CGN#PBF

Product Overview

The LTC2902-2CGN#PBF belongs to the category of precision voltage supervisor and watchdog timer. It is commonly used in applications where monitoring and controlling power supply voltages are critical. The LTC2902-2CGN#PBF is known for its high accuracy, low power consumption, and compact package, making it suitable for a wide range of electronic systems. This device is available in a 16-lead SSOP package and is an essential component for ensuring system reliability and stability.

Basic Information

• Category: Precision Voltage Supervisor and Watchdog Timer
• Use: Monitoring and controlling power supply voltages
• Characteristics: High accuracy, low power consumption
• Package: 16-lead SSOP
• Essence: Ensuring system reliability and stability
• Packaging/Quantity: Available in tape and reel packaging with a quantity of 2500 units per reel

Specifications

• Voltage Range: 1.6V to 5.5V
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 25μA
• Watchdog Timeout Period: Selectable from 1ms to 128s
• Reset Threshold Accuracy: ±1.5%
• Power-On Reset Delay: 200ms

Detailed Pin Configuration

The LTC2902-2CGN#PBF features the following pin configuration: 1. VCC: Power Supply Input 2. GND: Ground 3. MR: Manual Reset Input 4. WDI: Watchdog Timer Input 5. RESET: Active-Low Reset Output 6. GATE: Open-Drain Gate Output 7. VCC: Power Supply Input 8. GND: Ground 9. WDO: Watchdog Timer Output 10. WDI: Watchdog Timer Input 11. MR: Manual Reset Input 12. VCC: Power Supply Input 13. GND: Ground 14. RESET: Active-Low Reset Output 15. GATE: Open-Drain Gate Output 16. VCC: Power Supply Input

Functional Features

• Precision Voltage Supervision: Monitors power supply voltages with high accuracy.
• Watchdog Timer: Provides a selectable timeout period for system reset.
• Manual Reset Input: Allows external control over the reset function.
• Open-Drain Gate Output: Enables external circuitry control.

Advantages and Disadvantages

Advantages

• High accuracy voltage monitoring
• Low power consumption
• Selectable watchdog timeout period
• Manual reset input for flexibility

Disadvantages

• Limited to a voltage range of 1.6V to 5.5V
• Requires careful consideration of reset threshold accuracy in critical applications

Working Principles

The LTC2902-2CGN#PBF operates by continuously monitoring the power supply voltage and comparing it to a precise reference threshold. If the voltage falls outside the specified range or the watchdog timer times out, the device triggers a reset signal to ensure the system's safe operation. The manual reset input provides additional control over the reset function, while the open-drain gate output allows for external circuitry interfacing.

Detailed Application Field Plans

The LTC2902-2CGN#PBF finds extensive application in various fields, including: - Industrial Control Systems - Automotive Electronics - Telecommunications Equipment - Medical Devices - Consumer Electronics

Detailed and Complete Alternative Models

Some alternative models to LTC2902-2CGN#PBF include: - MAX16050 - ADM803 - TPS3808G01

In conclusion, the LTC2902-2CGN#PBF is a precision voltage supervisor and watchdog timer that offers high accuracy, low power consumption, and versatile functionality. Its compact package and essential features make it an ideal choice for ensuring system reliability and stability in a wide range of electronic applications.

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