LTC2901-4CGN#TRPBF

Product Overview

Category: Integrated Circuits (ICs)

Use: The LTC2901-4CGN#TRPBF is a voltage supervisor and watchdog timer IC. It is designed to monitor the power supply voltage of electronic systems and provide reset signals when necessary.

Characteristics: - Voltage monitoring range: 0.5V to 5V - Adjustable reset timeout period - Low quiescent current: 10µA - Wide operating temperature range: -40°C to 85°C - Small package size: 16-pin SSOP

Package: The LTC2901-4CGN#TRPBF is available in a 16-pin SSOP (Shrink Small Outline Package) format.

Essence: The essence of the LTC2901-4CGN#TRPBF is its ability to monitor the power supply voltage and generate reset signals, ensuring proper operation of electronic systems.

Packaging/Quantity: The LTC2901-4CGN#TRPBF is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Reset Threshold Accuracy: ±1.5%
• Watchdog Timer Timeout Period: Adjustable from 6ms to 1024ms
• Quiescent Current: 10µA (typical)
• Power-On Reset Delay: 200ms (typical)
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC2901-4CGN#TRPBF has a total of 16 pins. The pin configuration is as follows:

1. GND (Ground)
2. VCC (Supply Voltage)
3. MR (Manual Reset Input)
4. WDI (Watchdog Timer Input)
5. RESET (Reset Output)
6. GND
7. GND
8. GND
9. GND
10. GND
11. GND
12. GND
13. GND
14. GND
15. GND
16. GND

Functional Features

1. Voltage Monitoring: The LTC2901-4CGN#TRPBF continuously monitors the power supply voltage and compares it to a user-defined threshold.
2. Reset Generation: When the monitored voltage falls below the threshold, the LTC2901-4CGN#TRPBF generates a reset signal to initiate system reset or recovery.
3. Watchdog Timer: The integrated watchdog timer ensures that the system remains operational by periodically resetting it unless a valid input signal is received within the specified timeout period.
4. Adjustable Timeout Period: The timeout period of the watchdog timer can be adjusted according to the specific requirements of the application.

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows compatibility with various electronic systems. - Adjustable reset timeout period provides flexibility in system design. - Low quiescent current minimizes power consumption. - Small package size enables space-efficient integration into compact designs.

Disadvantages: - Limited number of available pins may restrict the number of external components that can be connected directly to the IC. - Lack of built-in protection features against voltage spikes or transients.

Working Principles

The LTC2901-4CGN#TRPBF operates by continuously monitoring the power supply voltage using an internal voltage reference. When the voltage falls below the user-defined threshold, the IC generates a reset signal to initiate system reset or recovery. Additionally, the integrated watchdog timer periodically checks for a valid input signal. If no valid signal is received within the specified timeout period, the IC generates a reset signal to prevent system malfunction.

Application Field Plans

The LTC2901-4CGN#TRPBF finds applications in various electronic systems where voltage monitoring and reset generation are critical for proper operation. Some potential application fields include:

1. Microcontrollers and Microprocessors: Ensuring reliable operation by monitoring power supply voltage and generating resets when necessary.
2. Industrial Control Systems: Preventing system malfunctions by monitoring voltage levels and initiating recovery actions.
3. Automotive Electronics: Enhancing the reliability of automotive systems by monitoring power supply voltage and generating resets in case of voltage fluctuations or failures.
4. Power Management Systems: Facilitating efficient power management by monitoring voltage levels and triggering appropriate actions based on predefined thresholds.

Alternative Models

1. LTC2901-4IGN#TRPBF
2. LTC2901-4CMS#TRPBF
3. LTC2901-4IMS#TRPBF
4. LTC2901-4HS#TRPBF

These alternative models offer similar functionality and characteristics to the LTC2901-4CGN#TRPBF, providing options for different package types or pin configurations.

In conclusion,