LTC2901-4IGN#PBF

Product Overview

Category

The LTC2901-4IGN#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is commonly used in various electronic devices and systems to monitor and control power supply voltages, ensuring reliable operation and protection against voltage fluctuations.

Characteristics

• Monitors up to four power supply voltages simultaneously
• Provides accurate voltage threshold detection
• Offers programmable delay times for power-on reset and watchdog timer functions
• Operates over a wide temperature range
• Low power consumption
• Compact and versatile package design

Package

The LTC2901-4IGN#PBF is available in an 8-pin plastic dual in-line package (PDIP), which provides ease of integration into circuit boards.

Essence

The essence of the LTC2901-4IGN#PBF lies in its ability to monitor multiple power supply voltages and perform essential power management functions, ensuring system stability and reliability.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 6V
• Operating Temperature Range: -40°C to 85°C
• Input Voltage Range: 0V to VCC
• Threshold Accuracy: ±1.5%
• Power-On Reset Delay Time: Programmable from 10ms to 10s
• Watchdog Timer Delay Time: Programmable from 10ms to 10s
• Quiescent Current: 20µA (typical)

Detailed Pin Configuration

The LTC2901-4IGN#PBF features the following pin configuration:

1. GND: Ground reference
2. VIN1: Input voltage for channel 1
3. VIN2: Input voltage for channel 2
4. VIN3: Input voltage for channel 3
5. VIN4: Input voltage for channel 4
6. RESET: Active-low reset output
7. WDI: Watchdog timer input
8. VCC: Supply voltage input

Functional Features

The LTC2901-4IGN#PBF offers the following functional features:

1. Power-On Reset (POR): Monitors power supply voltages and generates a reset signal when any voltage falls below a programmable threshold.
2. Watchdog Timer (WDT): Detects system malfunctions by monitoring a specific input signal and generating a reset signal if the signal is not toggled within a programmable time period.
3. Multiple Channel Monitoring: Simultaneously monitors up to four power supply voltages, providing comprehensive power management capabilities.

Advantages and Disadvantages

Advantages

• Efficient power management solution for multi-voltage systems
• Accurate voltage threshold detection ensures reliable operation
• Programmable delay times offer flexibility in power-on reset and watchdog timer functions
• Wide operating temperature range allows for use in various environments
• Low power consumption helps conserve energy

Disadvantages

• Limited to monitoring and control of power supply voltages only
• Requires additional external components for complete power management functionality

Working Principles

The LTC2901-4IGN#PBF operates based on the principle of comparing input voltages with programmable thresholds. When a voltage falls below the set threshold, the corresponding power-on reset or watchdog timer function is triggered, generating a reset signal to ensure proper system operation.

Detailed Application Field Plans

The LTC2901-4IGN#PBF finds applications in various fields where reliable power management is crucial. Some examples include:

1. Industrial Control Systems: Ensuring stable power supply voltages in control panels and equipment.
2. Automotive Electronics: Monitoring and protecting critical power supply voltages in vehicles.
3. Telecommunications: Maintaining reliable power distribution in communication systems and network equipment.
4. Medical Devices: Safeguarding power supply voltages in medical equipment for patient safety.

Detailed and Complete Alternative Models

1. LTC2901-4IGN#TRPBF: Similar to LTC2901-4IGN#PBF, but available in a 16-pin TSSOP package.
2. LTC2901-4IGN#PBF-ND: Same as LTC2901-4IGN#PBF, but available through Digi-Key Electronics.

(Note: This is not an exhaustive list of alternative models. Please refer to the manufacturer's documentation for a complete list.)

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