LTC2932CF

Product Overview

Category

LTC2932CF belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for power supply monitoring and sequencing in electronic systems.

Characteristics

• Monitors multiple power supply voltages simultaneously
• Provides accurate power-on reset (POR) signals
• Offers programmable delay times for power sequencing
• Operates over a wide temperature range
• Low quiescent current consumption

Package

LTC2932CF is available in a compact 16-pin plastic QFN package.

Essence

The essence of LTC2932CF lies in its ability to monitor and control power supply voltages, ensuring proper system operation and preventing damage due to improper power sequencing.

Packaging/Quantity

This product is typically sold in reels containing a specified quantity of units. The exact packaging and quantity can vary depending on the supplier.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 20µA (typical)
• Number of Power Supply Inputs: 4
• Programmable Delay Times: 0ms to 10s
• Output Type: Active-Low Reset Signals

Detailed Pin Configuration

1. VCC1: Power supply input for channel 1
2. VCC2: Power supply input for channel 2
3. VCC3: Power supply input for channel 3
4. VCC4: Power supply input for channel 4
5. GND: Ground reference
6. RESET1: Active-low reset output for channel 1
7. RESET2: Active-low reset output for channel 2
8. RESET3: Active-low reset output for channel 3
9. RESET4: Active-low reset output for channel 4
10. DELAY1: Programmable delay input for channel 1
11. DELAY2: Programmable delay input for channel 2
12. DELAY3: Programmable delay input for channel 3
13. DELAY4: Programmable delay input for channel 4
14. GATE: Enable input for all channels
15. POR: Power-on reset output
16. VCC: Power supply input

Functional Features

• Simultaneous monitoring of multiple power supply voltages
• Accurate power-on reset signals generated upon power-up
• Programmable delay times allow precise power sequencing
• Enable input for easy control of all channels
• Low quiescent current consumption for power efficiency

Advantages and Disadvantages

Advantages

• Efficient power supply monitoring and sequencing
• Wide operating temperature range
• Compact package size
• Low quiescent current consumption

Disadvantages

• Limited number of power supply inputs (4 channels)
• Requires external programming of delay times

Working Principles

LTC2932CF operates by continuously monitoring the voltage levels of the connected power supplies. Upon power-up, accurate power-on reset signals are generated to ensure proper system initialization. The programmable delay inputs allow precise control over the power sequencing, preventing potential issues caused by improper power supply activation.

Detailed Application Field Plans

LTC2932CF finds applications in various electronic systems where power supply monitoring and sequencing are critical. Some specific application fields include: - Industrial automation - Telecommunications equipment - Medical devices - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

1. LTC2932IF: Similar to LTC2932CF but with an inverted reset output logic.
2. LTC2932EF: Enhanced version with additional features such as fault detection and reporting.
3. LTC2932PF: Power-efficient variant with lower quiescent current consumption.

These alternative models offer similar functionality to LTC2932CF but may have slight variations in specifications and additional features.

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