TPS3421EGDRYT

Overview

Category: Integrated Circuits (ICs)

Use: Power Management - Supervisors

Characteristics: - Low Quiescent Current - Adjustable Threshold Voltage - Wide Supply Voltage Range - Programmable Time Delay - Small Package Size

Package: 6-VSON (3x2)

Essence: TPS3421EGDRYT is a power management supervisor IC that provides accurate monitoring and control of voltage levels in electronic systems.

Packaging/Quantity: The TPS3421EGDRYT is available in a 6-VSON package and is typically sold in reels of 2500 units.

Specifications

The TPS3421EGDRYT has the following specifications:

• Supply Voltage Range: 1.5V to 6.5V
• Quiescent Current: 1.5µA (typical)
• Threshold Voltage Range: 0.4V to 5.5V
• Time Delay Range: 1ms to 10s
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TPS3421EGDRYT has a 6-pin VSON package with the following pin configuration:

1. GND (Ground)
2. VIN (Supply Voltage Input)
3. RESET (Reset Output)
4. MR (Manual Reset Input)
5. TH (Threshold Voltage Input)
6. TD (Time Delay Programming Input)

Functional Features

The TPS3421EGDRYT offers the following functional features:

• Accurate Voltage Monitoring: The IC can accurately monitor the supply voltage and provide a reset signal when it falls below a programmable threshold.
• Adjustable Threshold Voltage: The threshold voltage can be programmed using an external resistor divider network, allowing flexibility in setting the desired voltage level.
• Programmable Time Delay: The time delay for the reset signal can be programmed using an external capacitor, enabling customization based on system requirements.
• Low Quiescent Current: The IC has a low quiescent current, minimizing power consumption in battery-powered applications.
• Wide Supply Voltage Range: The TPS3421EGDRYT operates over a wide supply voltage range, making it suitable for various electronic systems.

Advantages and Disadvantages

Advantages: - Accurate voltage monitoring - Adjustable threshold voltage - Programmable time delay - Low quiescent current - Wide supply voltage range

Disadvantages: - Limited pin configuration options - Requires external components for threshold voltage and time delay programming

Working Principles

The TPS3421EGDRYT works by continuously monitoring the supply voltage. When the voltage falls below the programmed threshold level, the IC generates a reset signal to initiate a system reset. The threshold voltage and time delay can be adjusted using external components, providing flexibility in voltage monitoring and reset timing.

Application Field Plans

The TPS3421EGDRYT is commonly used in various applications, including:

1. Battery-Powered Devices: It ensures proper power management and prevents damage to sensitive components when the battery voltage drops below a safe level.
2. Industrial Control Systems: It provides reliable voltage monitoring and reset functionality in industrial control systems to maintain system integrity.
3. Automotive Electronics: It safeguards automotive electronics by monitoring the supply voltage and initiating a reset if necessary, preventing potential malfunctions.

Alternative Models

Here are some alternative models that offer similar functionality to the TPS3421EGDRYT:

1. TPS3420EGDRYT
2. TPS3422EGDRYT
3. TPS3424EGDRYT

These alternatives have comparable specifications and pin configurations, allowing for easy substitution in various applications.

In conclusion, the TPS3421EGDRYT is a versatile power management supervisor IC with accurate voltage monitoring, adjustable threshold voltage, and programmable time delay. It finds applications in battery-powered devices, industrial control systems, and automotive electronics. While it has limited pin configuration options, it offers several advantages such as low quiescent current and wide supply voltage range. Alternative models like TPS3420EGDRYT, TPS3422EGDRYT, and TPS3424EGDRYT provide similar functionality for substitution if needed.