NCP330MUTBG

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Supervisor

Characteristics: - Monitors the voltage level of a power supply - Provides a reset signal when the voltage falls below a specified threshold - Prevents system malfunction due to insufficient power supply voltage

Package: SOT-23-5

Essence: The NCP330MUTBG is a voltage supervisor IC that ensures stable operation of electronic systems by monitoring the power supply voltage and generating a reset signal when it falls below a predetermined threshold.

Packaging/Quantity: The NCP330MUTBG is available in a SOT-23-5 package, which contains 3000 units per reel.

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 3.08V, 4.38V, or Adjustable
• Reset Timeout Period: 140ms, 560ms, or 1120ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The NCP330MUTBG has five pins arranged as follows:

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| | --| VDD | --| GND | --| RESET | --| TRIG | --| NC | |_______| ```

Pin Descriptions: - VDD: Power supply input pin - GND: Ground reference pin - RESET: Output pin for the reset signal - TRIG: Input pin for selecting the reset threshold voltage - NC: No connection pin

Functional Features

1. Voltage Monitoring: The NCP330MUTBG continuously monitors the power supply voltage and compares it with the selected threshold voltage.
2. Reset Signal Generation: When the power supply voltage falls below the threshold, the NCP330MUTBG generates a reset signal to indicate a power failure.
3. Adjustable Threshold Voltage: The TRIG pin allows users to select the desired threshold voltage or use an external resistor divider network for a custom threshold.
4. Reset Timeout Period: The IC provides different timeout options to delay the reset signal after the power supply voltage returns to normal, preventing false resets during temporary voltage fluctuations.

Advantages and Disadvantages

Advantages: - Compact SOT-23-5 package for space-constrained applications - Wide operating voltage range enables compatibility with various power supply systems - Adjustable threshold voltage offers flexibility in different voltage monitoring scenarios - Multiple reset timeout options cater to diverse system requirements

Disadvantages: - Limited number of threshold voltage options compared to some alternative models - No built-in hysteresis feature for noise immunity

Working Principles

The NCP330MUTBG operates by comparing the power supply voltage with the selected threshold voltage. If the voltage drops below the threshold, the internal circuitry triggers the RESET pin, generating a reset signal. This signal can be used to initiate system shutdown or perform other necessary actions to prevent data corruption or malfunctioning due to insufficient power supply voltage.

Detailed Application Field Plans

The NCP330MUTBG is widely used in various electronic systems where stable operation is critical. Some application areas include: - Microcontrollers and microprocessors - Communication devices - Industrial control systems - Automotive electronics - Power management circuits

Detailed and Complete Alternative Models

1. MAX823: Voltage Supervisor IC with adjustable threshold voltage and built-in hysteresis.
2. TL7705: Voltage Supervisor IC with fixed threshold voltage options and adjustable reset timeout period.
3. ADM6315: Voltage Supervisor IC with adjustable threshold voltage and watchdog timer functionality.

These alternative models offer similar voltage monitoring and reset signal generation capabilities, but with different features and specifications.