NCP301HSN45T1G - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: High accuracy, low power consumption, small package size
• Package: SOT-23-5
• Essence: Monolithic voltage supervisor with a built-in delay timer
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Threshold Voltage Options: 4.5V
• Reset Timeout Period: Adjustable from 1ms to 10s
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Detailed Pin Configuration

The NCP301HSN45T1G has a standard SOT-23-5 package with the following pin configuration:

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Pin 1: GND (Ground) Pin 2: RESET (Active-Low Reset Output) Pin 3: VDD (Supply Voltage) Pin 4: MR (Manual Reset Input) Pin 5: TRIG (Trigger Input)

Functional Features

• Monitors the supply voltage and asserts the reset output when it falls below the threshold voltage.
• Built-in delay timer allows for adjustable reset timeout period.
• Manual reset input allows for external reset control.
• Low quiescent current ensures minimal power consumption.

Advantages

• High accuracy in monitoring the supply voltage.
• Wide supply voltage range enables compatibility with various systems.
• Adjustable reset timeout period provides flexibility in system design.
• Small package size allows for space-efficient integration into compact designs.
• Low power consumption extends battery life in portable applications.

Disadvantages

• Limited threshold voltage options may not suit all voltage monitoring requirements.
• Lack of additional features such as hysteresis or watchdog functionality.

Working Principles

The NCP301HSN45T1G operates by continuously monitoring the supply voltage. When the voltage falls below the threshold voltage (4.5V), the reset output is asserted, indicating a low-voltage condition. The built-in delay timer ensures that the reset output remains active for a user-defined period, adjustable from 1ms to 10s. This delay allows the system to stabilize before resuming normal operation. The manual reset input provides an external means to assert the reset output, overriding the voltage monitoring function.

Detailed Application Field Plans

The NCP301HSN45T1G is commonly used in various electronic systems where reliable voltage monitoring is critical. Some application fields include: - Power management circuits - Microcontrollers and microprocessors - Industrial control systems - Automotive electronics - Battery-powered devices

Detailed and Complete Alternative Models

• NCP302LSN30T1G: Similar voltage supervisor with a lower threshold voltage of 3.0V.
• NCP303LSN33T1G: Voltage supervisor with a higher threshold voltage of 3.3V and additional hysteresis feature.
• NCP304LSN50T1G: Voltage supervisor with a higher threshold voltage of 5.0V and adjustable reset timeout period.

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