NCP301LSN12T1

Product Overview

Category

The NCP301LSN12T1 belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

• The NCP301LSN12T1 is a low-power voltage supervisor designed for use in various applications.
• It operates at a supply voltage range of 0.9V to 10V.
• This device offers an adjustable threshold voltage, making it versatile for different circuit requirements.
• It has a low quiescent current consumption, which helps in conserving power.
• The NCP301LSN12T1 provides accurate voltage monitoring with a tight voltage threshold accuracy.

Package

The NCP301LSN12T1 is available in a small SOT-23-5 package, which is suitable for space-constrained designs.

Essence

The essence of the NCP301LSN12T1 lies in its ability to ensure stable and reliable operation by monitoring the voltage levels and providing necessary control signals.

Packaging/Quantity

This product is typically packaged in reels or tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Supply Voltage Range: 0.9V to 10V
• Adjustable Threshold Voltage Range: 0.4V to 9.6V
• Quiescent Current: 3µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active Low
• Accuracy: ±1.5% (typical)

Detailed Pin Configuration

The NCP301LSN12T1 has a total of five pins arranged as follows:

```

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| | --| VDD | --| GND | --| TH | --| OUT | |_______| ```

1. VDD: Power supply pin.
2. GND: Ground reference pin.
3. TH: Threshold voltage adjustment pin.
4. OUT: Output pin indicating the status of the monitored voltage.

Functional Features

• Voltage Monitoring: The NCP301LSN12T1 continuously monitors the input voltage and compares it with the threshold voltage set by the user.
• Adjustable Threshold: The threshold voltage can be adjusted using an external resistor divider network connected to the TH pin.
• Active Low Output: The output pin provides an active low signal when the monitored voltage falls below the threshold, indicating a fault condition.
• Power-On Reset: The device includes a power-on reset circuit that ensures proper initialization of the system upon power-up.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows for compatibility with various systems.
• Adjustable threshold voltage offers flexibility in different applications.
• Low quiescent current consumption helps in power-saving.
• Accurate voltage monitoring ensures reliable operation.

Disadvantages

• Limited to monitoring voltage levels only, without additional features like overcurrent protection or temperature sensing.

Working Principles

The NCP301LSN12T1 operates based on a voltage comparator principle. It compares the input voltage with the threshold voltage set by the user. If the input voltage falls below the threshold, the output pin goes low, indicating a fault condition. The adjustable threshold feature allows customization according to specific circuit requirements.

Detailed Application Field Plans

The NCP301LSN12T1 finds applications in various fields, including but not limited to:

1. Power Supply Monitoring: It can be used to monitor the voltage level of power supplies and generate alerts in case of under-voltage conditions.
2. Battery Management: The device can be employed in battery-powered systems to ensure safe operation by monitoring the battery voltage and triggering appropriate actions.
3. Industrial Control Systems: It can be integrated into industrial control systems to monitor critical voltage levels and provide necessary control signals for fault detection and protection.

Detailed and Complete Alternative Models

1. NCP302LSN12T1: Similar to the NCP301LSN12T1, but with a fixed threshold voltage of 1.2V.
2. NCP303LSN12T1: Offers additional features like overcurrent protection along with voltage monitoring.
3. NCP304LSN12T1: Provides temperature sensing capability in addition to voltage monitoring.

These alternative models offer similar functionality with slight variations in specifications and additional features to cater to different application requirements.

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