LTC2907CDDB#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Adjustable Thresholds
• Package: DFN-6 (Dual Flat No-Lead)
• Essence: Monitors voltage levels and provides reset signals to microcontrollers or other digital systems.
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)
• Reset Timeout Period: Adjustable from 1ms to 10s
• Threshold Accuracy: ±1.5% (maximum)

Pin Configuration

The LTC2907CDDB#TRPBF has the following pin configuration:

```

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| | --| RESETOUT |-- --| GND |-- --| VCC |-- --| THRESHOLD |-- --| GATE |-- |___________| ```

Functional Features

1. Voltage Monitoring: The LTC2907CDDB#TRPBF continuously monitors the input voltage and compares it with the user-adjustable threshold voltage.
2. Reset Signal Generation: When the input voltage falls below the threshold voltage, the device generates a reset signal to indicate a power failure or fault condition.
3. Adjustable Thresholds: The threshold voltage can be set using an external resistor divider network, allowing flexibility in monitoring different voltage levels.
4. Precision Monitoring: The device offers high accuracy in voltage monitoring, ensuring reliable operation of the monitored system.

Advantages

• Low Power Consumption: The LTC2907CDDB#TRPBF operates at a low quiescent current of 1.5µA, making it suitable for battery-powered applications.
• Adjustable Reset Timeout: The reset timeout period can be adjusted according to the specific requirements of the application, providing flexibility in system design.
• Small Package Size: The DFN-6 package offers a compact form factor, saving board space and enabling integration into space-constrained designs.

Disadvantages

• Limited Threshold Accuracy: The maximum threshold accuracy of ±1.5% may not be sufficient for applications requiring very precise voltage monitoring.
• Single Voltage Monitoring: The LTC2907CDDB#TRPBF can monitor only one voltage input at a time, limiting its use in systems with multiple power domains.

Working Principles

The LTC2907CDDB#TRPBF utilizes a precision voltage comparator to continuously compare the input voltage with the user-adjustable threshold voltage. When the input voltage falls below the threshold, the device generates a reset signal, indicating a power failure or fault condition. The reset signal remains active until the input voltage rises above the threshold again.

Application Field Plans

The LTC2907CDDB#TRPBF finds applications in various fields, including:

1. Battery-Powered Systems: It can be used to monitor battery voltage and generate reset signals when the battery voltage drops below a certain level.
2. Industrial Control Systems: The device ensures reliable operation by monitoring critical voltages and generating reset signals in case of power supply issues.
3. Automotive Electronics: It can be employed to monitor voltage levels in automotive systems, triggering appropriate actions in case of voltage deviations.
4. IoT Devices: The LTC2907CDDB#TRPBF provides voltage supervision in IoT devices, allowing them to respond to power-related events effectively.

Alternative Models

1. LTC2907IDD#TRPBF: Similar to LTC2907CDDB#TRPBF but available in an 8-lead DFN package.
2. LTC2907CDDB-1#TRPBF: A variant with a different threshold voltage range.
3. LTC2907IDD-1#TRPBF: Similar to LTC2907CDDB-1#TRPBF but available in an 8-lead DFN package.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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