S-1335C21-N4T1U3

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Voltage Detector

Characteristics: - Low power consumption - Wide operating voltage range - High accuracy - Built-in delay circuit - Small package size

Package: SOT-23-5

Essence: The S-1335C21-N4T1U3 is a voltage detector IC used to monitor the voltage level of a power supply and provide an output signal when the voltage exceeds or falls below a certain threshold.

Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

• Operating Voltage Range: 1.6V to 6.0V
• Detection Voltage Accuracy: ±1.0%
• Quiescent Current: 1.0μA (typical)
• Output Configuration: Open Drain
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1335C21-N4T1U3 has a total of 5 pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. OUT: Output pin for voltage detection signal.
4. SENSE: Input pin for voltage detection threshold setting.
5. NRST: Reset pin for system initialization.

Functional Features

• Undervoltage Detection: The S-1335C21-N4T1U3 can detect when the input voltage falls below a specified threshold.
• Overvoltage Detection: It can also detect when the input voltage exceeds a specified threshold.
• Built-in Delay Circuit: The IC includes a delay circuit that prevents false detections caused by temporary voltage fluctuations.
• Open Drain Output: The output pin provides an open drain configuration, allowing easy integration with other circuitry.

Advantages and Disadvantages

Advantages: - Low power consumption makes it suitable for battery-powered applications. - Wide operating voltage range allows for versatile use in various systems. - High accuracy ensures reliable voltage monitoring. - Small package size enables space-saving designs. - Built-in delay circuit prevents false detections.

Disadvantages: - Limited to voltage detection functionality, may require additional components for more complex applications. - Not suitable for high-voltage applications above 6.0V.

Working Principles

The S-1335C21-N4T1U3 operates by comparing the input voltage with a reference voltage set by the SENSE pin. When the input voltage exceeds or falls below the threshold, the output pin (OUT) changes its state accordingly. The built-in delay circuit ensures that temporary voltage fluctuations do not trigger false detections.

Detailed Application Field Plans

The S-1335C21-N4T1U3 is commonly used in various electronic devices and systems where voltage monitoring is critical. Some application fields include:

1. Battery-Powered Devices: Used to monitor battery voltage levels and prevent over-discharge.
2. Power Supply Units: Ensures stable voltage output by detecting under/overvoltage conditions.
3. Automotive Electronics: Monitors vehicle battery voltage and triggers appropriate actions.
4. Industrial Control Systems: Protects sensitive equipment from voltage fluctuations.
5. Home Appliances: Provides voltage monitoring for safety and protection purposes.

Detailed and Complete Alternative Models

1. S-1313Bxx Series: Similar voltage detector ICs with different package options.
2. S-113x Series: Voltage detectors with adjustable detection thresholds.
3. S-192xx Series: Voltage detectors with additional features like watchdog timers.

These alternative models offer similar functionality but may have variations in package size, detection accuracy, and additional features.

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