NCP803SN400T1G

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Quiescent Current, Wide Operating Voltage Range
• Package: SOT-23-5
• Essence: Monolithic CMOS Voltage Supervisor
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Reset Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The NCP803SN400T1G has a total of five pins: 1. VDD: Supply voltage input 2. GND: Ground reference 3. RESET: Active-low reset output 4. MR: Manual reset input 5. NC: No connection (unused pin)

Functional Features

• Monitors the supply voltage and asserts the reset signal when it falls below the threshold voltage.
• Provides a manual reset option for immediate system restart.
• Offers a wide range of reset threshold voltage and timeout period options for flexibility in different applications.
• Low quiescent current ensures minimal power consumption.

Advantages

• Small package size allows for space-saving designs.
• Wide operating voltage range makes it compatible with various systems.
• Low quiescent current prolongs battery life in portable devices.
• Multiple reset threshold voltage and timeout period options provide versatility.

Disadvantages

• Limited number of pins may restrict the functionality in complex systems.
• Lack of adjustable reset threshold voltage and timeout period may not suit all applications.

Working Principles

The NCP803SN400T1G operates by continuously monitoring the supply voltage. When the voltage drops below the programmed threshold, the reset output is asserted, indicating a power failure or an out-of-specification condition. The reset signal remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The NCP803SN400T1G is commonly used in various electronic systems where reliable power supply monitoring is critical. Some application fields include: - Battery-powered devices - Embedded systems - Industrial control systems - Automotive electronics - Medical equipment

Detailed and Complete Alternative Models

1. NCP803SN330T1G: Same features as NCP803SN400T1G but with a lower reset threshold voltage of 2.93V.
2. NCP803SN308T1G: Same features as NCP803SN400T1G but with a lower reset threshold voltage of 3.08V.
3. NCP803SN363T1G: Same features as NCP803SN400T1G but with a higher reset threshold voltage of 3.63V.
4. NCP803SN438T1G: Same features as NCP803SN400T1G but with a higher reset threshold voltage of 4.38V.

These alternative models provide options for different voltage monitoring requirements.

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