LTC2911IDDB-4#TRMPBF

Product Overview

Category: Integrated Circuit (IC)

Use: The LTC2911IDDB-4#TRMPBF is a voltage supervisor and monitor IC used for monitoring power supply voltages in various electronic systems.

Characteristics: - Monitors up to four power supply voltages simultaneously - Provides accurate voltage threshold detection - Offers programmable delay times for each monitored voltage - Low quiescent current consumption - Wide operating temperature range - Small package size for space-constrained applications

Package: The LTC2911IDDB-4#TRMPBF is available in a 10-lead DFN (Dual Flat No-Lead) package.

Essence: This IC is designed to ensure the stability and reliability of power supply voltages in electronic systems by continuously monitoring them and triggering appropriate actions when voltage thresholds are exceeded or not met.

Packaging/Quantity: The LTC2911IDDB-4#TRMPBF is typically packaged in reels and available in quantities suitable for both prototyping and mass production.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 20µA (typical)
• Number of Monitored Voltages: 4
• Programmable Delay Times: 0ms to 10s
• Threshold Accuracy: ±1.5%
• Output Type: Open-drain

Detailed Pin Configuration

The LTC2911IDDB-4#TRMPBF features the following pin configuration:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. VIN1: Input for voltage monitoring channel 1
4. VIN2: Input for voltage monitoring channel 2
5. VIN3: Input for voltage monitoring channel 3
6. VIN4: Input for voltage monitoring channel 4
7. GPOUT1: Open-drain output for channel 1
8. GPOUT2: Open-drain output for channel 2
9. GPOUT3: Open-drain output for channel 3
10. GPOUT4: Open-drain output for channel 4

Functional Features

• Monitors the voltage levels of up to four power supplies simultaneously.
• Provides programmable delay times for each monitored voltage, allowing flexibility in response actions.
• Generates open-drain outputs that can be used to trigger external circuitry or microcontrollers based on voltage thresholds.
• Offers accurate threshold detection with a low threshold accuracy of ±1.5%.
• Consumes low quiescent current, minimizing power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages: - Allows precise monitoring of multiple power supply voltages in a single IC. - Programmable delay times enable customized response actions. - Low quiescent current consumption helps conserve power. - Wide operating temperature range ensures reliability in various environments. - Small package size facilitates integration into space-constrained designs.

Disadvantages: - Limited to monitoring up to four power supply voltages. - Requires additional external circuitry or microcontroller for more complex response actions.

Working Principles

The LTC2911IDDB-4#TRMPBF operates by continuously monitoring the voltage levels of the input channels. It compares these voltages against programmable threshold values. If a voltage exceeds or falls below the set threshold, the corresponding open-drain output is triggered. This output can be connected to external circuitry or microcontrollers to initiate appropriate actions, such as system shutdown or fault indication.

Detailed Application Field Plans

The LTC2911IDDB-4#TRMPBF finds applications in various electronic systems where reliable power supply monitoring is crucial. Some potential application fields include:

1. Industrial Control Systems: Ensuring stable power supply voltages for critical control components.
2. Automotive Electronics: Monitoring voltage levels in automotive systems to prevent damage or malfunctions.
3. Telecommunications Equipment: Maintaining proper power supply voltages for reliable communication networks.
4. Medical Devices: Monitoring voltage levels in medical equipment to ensure patient safety and device functionality.
5. Consumer Electronics: Protecting sensitive electronic components from voltage fluctuations.

Detailed and Complete Alternative Models

1. LTC2910IDDB-4#TRMPBF: Similar to LTC2911IDDB-4#TRMPBF, but with a different pin configuration.
2. LTC2912IDDB-4#TRMPBF: Monitors up to six power supply voltages simultaneously.
3. LTC2913IDDB-4#TRMPBF: Offers additional features such as adjustable hysteresis and fault detection.

These alternative models provide similar functionality with slight variations in specifications and pin configurations, allowing designers to choose the most suitable option for their specific