TPS3808G33DRVR

Basic Information Overview

• Category: Integrated Circuits (ICs)
• Use: Voltage Supervisors
• Characteristics: Low Power, Precision, Programmable Delay Time
• Package: SOT-23-5
• Essence: Voltage Supervisor with Programmable Delay Time
• Packaging/Quantity: Tape & Reel (3000 pieces per reel)

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.3V, 3.63V
• Adjustable Delay Time Range: 1ms to 10s
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)
• Output Type: Active-Low, Open Drain

Detailed Pin Configuration

The TPS3808G33DRVR has a total of 5 pins:

1. GND: Ground pin
2. VDD: Supply voltage pin
3. MR: Manual Reset input pin
4. RESET: Active-low reset output pin
5. DELAY: Programmable delay time selection pin

Functional Features

• Precision monitoring of supply voltages
• Programmable delay time for reset assertion
• Manual reset input for immediate system reset
• Active-low reset output for system control
• Low quiescent current for power efficiency
• Wide operating temperature range for various environments

Advantages and Disadvantages

Advantages: - High precision voltage monitoring - Programmable delay time for flexibility - Low power consumption - Small package size for space-constrained applications - Wide operating temperature range

Disadvantages: - Limited threshold voltage options - Requires external components for proper operation

Working Principles

The TPS3808G33DRVR is a voltage supervisor IC that monitors the supply voltage of a system. It compares the input voltage with a programmable threshold voltage and asserts the reset output when the voltage falls below the threshold. The delay time for reset assertion can be programmed using an external resistor and capacitor connected to the DELAY pin. The manual reset input allows for immediate system reset, overriding the voltage monitoring. The active-low reset output can be used to control the system during power-up or fault conditions.

Detailed Application Field Plans

The TPS3808G33DRVR is commonly used in various applications where precise voltage monitoring and system reset functionality are required. Some typical application fields include:

1. Microcontrollers and Microprocessors: Ensuring proper operation by monitoring the supply voltage and initiating a reset if necessary.
2. Industrial Control Systems: Providing reliable power-on reset functionality for critical control systems.
3. Automotive Electronics: Monitoring the battery voltage and initiating a reset to prevent malfunctioning due to low voltage conditions.
4. Communication Equipment: Ensuring stable operation by monitoring the power supply voltage and resetting the system if needed.
5. Battery-Powered Devices: Protecting the device from damage caused by undervoltage conditions and ensuring safe operation.

Detailed and Complete Alternative Models

Some alternative models to the TPS3808G33DRVR that offer similar functionality include:

1. MAX809: Voltage Supervisors with Programmable Delay Time
2. ADM708: Precision Voltage Monitors with Adjustable Reset Timeout
3. MCP131: Low-Power Voltage Detectors with Programmable Delay
4. TL7705: Supply Voltage Supervisors with Adjustable Delay Time
5. LTC2937: Precision Triple Voltage Monitor with Adjustable Delay

These alternative models provide options for different voltage thresholds, delay times, and package sizes, allowing designers to choose the most suitable solution for their specific requirements.

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