LTC2921IGN#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: The LTC2921IGN#TRPBF is a versatile integrated circuit designed for power management applications. It provides various features and functions to control and monitor power supply voltages in electronic systems.

Characteristics: - Wide operating voltage range - Low quiescent current - High accuracy voltage monitoring - Programmable power-on reset - Adjustable reset timeout period - Small package size

Package: The LTC2921IGN#TRPBF is available in a 16-pin SSOP (Shrink Small Outline Package) with exposed pad for enhanced thermal performance.

Essence: This IC serves as a crucial component in power management systems, ensuring stable and reliable power supply to other electronic components.

Packaging/Quantity: The LTC2921IGN#TRPBF is typically sold in reels containing 2500 units per reel.

Specifications

• Operating Voltage Range: 2.7V to 5.5V
• Quiescent Current: 30µA (typical)
• Voltage Monitoring Accuracy: ±1.5%
• Power-On Reset Threshold: Adjustable from 1.6V to 4.6V
• Reset Timeout Period: Adjustable from 100ms to 10s

Detailed Pin Configuration

The LTC2921IGN#TRPBF has 16 pins arranged as follows:

```

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| | | 1 2 3 4 5 6 | |_______________________| | | | 7 8 9 10 11 12 | |_______________________| | | | 13 14 15 16 | |_______________________| ```

1. VCC: Power supply voltage input
2. GND: Ground reference
3. RST: Reset output
4. MR: Manual reset input
5. TO: Timeout period selection input
6. VTH: Voltage threshold selection input
7. VOUT1: Output voltage 1
8. VOUT2: Output voltage 2
9. VOUT3: Output voltage 3
10. VOUT4: Output voltage 4
11. VOUT5: Output voltage 5
12. VOUT6: Output voltage 6
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Power-on reset generation
• Voltage monitoring and supervision
• Adjustable reset timeout period
• Multiple output voltage options
• Manual reset capability
• Low power consumption

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows compatibility with various systems - High accuracy voltage monitoring ensures reliable power supply control - Adjustable reset timeout period provides flexibility in system design - Small package size saves board space - Low quiescent current minimizes power consumption

Disadvantages: - Limited number of output voltage options - Lack of built-in protection features (e.g., overvoltage, overcurrent)

Working Principles

The LTC2921IGN#TRPBF operates by continuously monitoring the input voltage and generating a power-on reset signal when the voltage rises above a certain threshold. The reset timeout period can be adjusted to delay the reset signal, allowing for proper initialization of the system.

The IC also provides multiple output voltage options that can be selected using external pins. These output voltages are regulated and can be used to power other components in the system.

Detailed Application Field Plans

The LTC2921IGN#TRPBF finds applications in various fields, including: - Consumer electronics - Industrial automation - Telecommunications - Automotive systems - Medical devices

In consumer electronics, it can be used to control power supply voltages in smartphones, tablets, and other portable devices. In industrial automation, it can ensure stable power supply to sensors, actuators, and control systems. In telecommunications, it can be utilized for power management in network equipment. In automotive systems, it can provide voltage monitoring and reset functions for critical components. In medical devices, it can help maintain reliable power supply to sensitive electronic circuits.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LTC2921IGN#TRPBF include: - MAX16021TG+ - TPS3890E18DBVR - ADM6315-26D2ARTZ-R7 - MCP101T-450I/TT

These alternatives may have slightly different specifications and pin configurations but serve the same purpose of power management in electronic systems.

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