LTC2962IUD#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: The LTC2962IUD#TRPBF is a voltage supervisor and power supply sequencer IC. It is designed to monitor multiple power supply voltages and ensure proper sequencing during power-up and power-down sequences.

Characteristics: - Monitors up to 6 power supply voltages simultaneously - Provides accurate voltage monitoring with adjustable thresholds - Offers programmable time delays for power sequencing - Supports both positive and negative voltage monitoring - Operates over a wide temperature range (-40°C to 125°C) - Low quiescent current consumption

Package: The LTC2962IUD#TRPBF comes in a small 12-pin DFN (Dual Flat No-Lead) package, which provides excellent thermal performance and space-saving benefits.

Essence: This IC plays a crucial role in ensuring the reliable operation of complex electronic systems by monitoring and controlling the power supply voltages.

Packaging/Quantity: The LTC2962IUD#TRPBF is typically available in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 36V
• Voltage Monitoring Accuracy: ±1.5%
• Adjustable Threshold Voltage Range: 0.4V to 5V
• Power Sequencing Time Delay Range: 10ms to 10s
• Quiescent Current: 20µA (typical)
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC2962IUD#TRPBF has the following pin configuration:

1. GND: Ground
2. VIN1: Input Voltage 1
3. VIN2: Input Voltage 2
4. VIN3: Input Voltage 3
5. VIN4: Input Voltage 4
6. VIN5: Input Voltage 5
7. VIN6: Input Voltage 6
8. VCC: Power Supply Voltage
9. FLT: Fault Output
10. PGOOD: Power Good Output
11. EN: Enable Input
12. GPOUT: General Purpose Output

Functional Features

1. Voltage Monitoring: The LTC2962IUD#TRPBF can monitor up to 6 power supply voltages simultaneously, ensuring that they remain within the desired range.
2. Adjustable Thresholds: The IC allows users to set the voltage thresholds for each monitored input, providing flexibility in system design.
3. Power Sequencing: It offers programmable time delays for power sequencing, enabling controlled power-up and power-down sequences.
4. Positive and Negative Voltage Monitoring: The LTC2962IUD#TRPBF supports monitoring of both positive and negative voltages, making it suitable for a wide range of applications.
5. Fault Detection: The fault output pin (FLT) provides an indication when any of the monitored voltages fall outside the specified range.
6. Power Good Output: The PGOOD pin signals when all monitored voltages are within the desired range, indicating that the system is ready for operation.
7. Enable Input: The EN pin allows for easy enable/disable control of the IC.
8. General Purpose Output: The GPOUT pin can be configured as a general-purpose output, providing additional flexibility in system integration.

Advantages and Disadvantages

Advantages: - Monitors multiple power supply voltages simultaneously - Adjustable voltage thresholds and power sequencing time delays - Supports both positive and negative voltage monitoring - Low quiescent current consumption - Wide operating temperature range

Disadvantages: - Limited to 6 input voltage monitoring

Working Principles

The LTC2962IUD#TRPBF operates by continuously monitoring the input voltages and comparing them to the user-defined thresholds. If any of the monitored voltages fall outside the specified range, the fault output (FLT) is activated. The power sequencing feature ensures that the power supplies are turned on/off in a controlled manner, preventing potential damage to the system.

Detailed Application Field Plans

The LTC2962IUD#TRPBF finds applications in various fields, including: 1. Industrial control systems 2. Telecommunications equipment 3. Automotive electronics 4. Power management systems 5. Medical devices 6. Consumer electronics

Detailed and Complete Alternative Models

1. LTC2960IUD#TRPBF: Similar to LTC2962IUD#TRPBF but with 4 voltage inputs instead of 6.
2. LTC2964IUD#TRPBF: Monitors up to 8 power supply voltages simultaneously.
3. LTC2966IUD#TRPBF: Offers additional features like adjustable hysteresis and watchdog timer functionality.

These alternative models provide similar functionality